format-version: 1.2
data-version: rbo/releases/2021-08-30/rbo-base.owl
ontology: rbo/rbo-base
property_value: http://purl.org/dc/elements/1.1/description "RBO is an ontology for the effects of radiation on biota in terrestrial and space environments." xsd:string
property_value: http://purl.org/dc/elements/1.1/title "Radiation Biology Ontology" xsd:string
property_value: http://purl.org/dc/elements/1.1/type IAO:8000001
property_value: http://purl.org/dc/terms/license http://creativecommons.org/licenses/by/3.0/
property_value: owl:versionInfo "2021-08-30" xsd:string

[Term]
id: DOID:4
is_a: BFO:0000016

[Term]
id: GO:0009314
relationship: RO:0002608 ENVO:01001023

[Term]
id: GO:0010212
relationship: RO:0002608 RBO:00000116 ! ionizing radiation

[Term]
id: RBO:00000001
name: ionizing radiation categorized by source
def: "Ionizing radiation classified by the material entity which generates or emits it." []
is_a: RBO:00000116 ! ionizing radiation

[Term]
id: RBO:00000002
name: space radiation
def: "Radiation originating outside the Earth's atmosphere." []
is_a: RBO:00000001 ! ionizing radiation categorized by source

[Term]
id: RBO:00000003
name: ground radiation
def: "Radiation produced on Earth or on another planetary body by natural or artificial means." []
is_a: RBO:00000001 ! ionizing radiation categorized by source
property_value: IAO:0000112 "One of the principal sources of ground radiation is radon gas." xsd:string

[Term]
id: RBO:00000004
name: tissue equivalent material
def: "Material presenting, when irradiated, interaction properties similar to those of soft tissue." []
is_a: BFO:0000040
property_value: IAO:0000119 "ICRP glossary (http://icrpaedia.org/Tissue_equivalent_material)" xsd:string

[Term]
id: RBO:00000005
name: Fe-56 ion radiation
def: "Atomic nuclei, each with 26 protons and 30 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000006
name: C-12 ion radiation
def: "Atomic nuclei, each with 6 protons and 6 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000007
name: Si-28 ion radiation
def: "Atomic nuclei, each with 14 protons and 14 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000008
name: He-4 ion radiation
def: "Atomic nuclei, each with 2 protons and 2 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000009
name: Ne-20 ion radiation
def: "Atomic nuclei, each with 10 protons and 10 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000010
name: light ion
def: "An atomic nucleus, fully stripped of its orbital electrons, and containing 2, 3, 4, 5, or 6 protons." []
is_a: CHEBI:33252
is_a: RBO:00005003 ! charged particle

[Term]
id: RBO:00000011
name: active dosimeter
def: "A radiation measuring device which records dose at the time of detection, with data available in real time" []
is_a: RBO:00000115 ! radiation dosimeter device
property_value: IAO:0000112 "Ionization chambers and silicon solid state detectors can be used as active dosimeters." xsd:string

[Term]
id: RBO:00000012
name: passive dosimeter
def: "A radiation measuring device which integrates the amount of radiation to which it is exposed. Passive detectors are  interrogated at a later time to determine the dose." []
is_a: RBO:00000115 ! radiation dosimeter device
property_value: IAO:0000112 "Thermoluminescent dosimeters and plastic nuclear track detectors are passive detectors." xsd:string

[Term]
id: RBO:00000013
name: background ionizing radiation
def: "The amount of ionizing radiation to which a member of the population on Earth is exposed from natural sources, such as terrestrial radiation from naturally-occurring radionuclides in the soil, cosmic radiation originating in outer space, and naturally-occurring ra" []
is_a: ENVO:01001023

[Term]
id: RBO:00000014
name: effective dose
def: "The sum of the equivalent doses to all organs in the body, each adjusted to account for the sensitivity of the organ to radiation. Effective dose is calculated for the whole body. Effective dose is expressed in millisieverts (mSv)." []
is_a: RBO:010016 ! radiation dose
property_value: IAO:0000112 "The effective dose was calculated to be 300 mSv." xsd:string

[Term]
id: RBO:00000015
name: mixed radiation field
def: "The process of exposing the same sample to more than one type and/or energy of radiation, in sequence or simultaneously." []
synonym: "mixed field|mixed radiation" EXACT []
is_a: RBO:00000049 ! particle accelerator radiation
property_value: IAO:0000111 "mixed radiation" xsd:string
property_value: IAO:0000112 "The samples were exposed to a mixed radiation field consisting of several ions at different energies." xsd:string

[Term]
id: RBO:00000016
name: radiation environment
def: "Radiation classified by where the exposure to the radiation is occurring." []
is_a: ENVO:01000254

[Term]
id: RBO:00000017
name: Earth surface
def: "That part of the Earth exposed to the Earth atmosphere." []
is_a: RBO:00000016 ! radiation environment

[Term]
id: RBO:00000018
name: Earth atmosphere
def: "The region between the Earth's surface and an altitude of approximately 100 km" []
is_a: RBO:00000016 ! radiation environment

[Term]
id: RBO:00000019
name: low Earth orbit
def: "The region of outer space between the Earth's atmosphere and the innermost Earth radiation belt" []
synonym: "LEO" EXACT []
is_a: ENVO:01000637
property_value: IAO:0000111 "LEO" xsd:string

[Term]
id: RBO:00000020
name: beyond low Earth orbit
def: "That part of outer space beyond the Earth's radiation belts." []
synonym: "BLEO" EXACT []
is_a: ENVO:01000637
property_value: IAO:0000111 "BLEO" xsd:string

[Term]
id: RBO:00000021
name: fractionated radiation exposure
def: "A radiation dose administered in two or more exposures at specified time intervals" []
is_a: RBO:00000082 ! radiobiology study type
property_value: IAO:0000111 "fractionated" xsd:string

[Term]
id: RBO:00000022
name: millirad
def: "A unit of absorbed dose equal to 1/1000 of a rad" []
synonym: "mrad" EXACT []
is_a: UO:1000135

[Term]
id: RBO:00000023
name: equivalent dose
def: "The product of the mean absorbed dose in an organ or tissue and the radiation weighting factor (w_R )of the radiation type of interest" []
is_a: RBO:010016 ! radiation dose
property_value: IAO:0000112 "The equivalent dose was calculated to be 300 mSv." xsd:string

[Term]
id: RBO:00000024
name: dose fraction
def: "The absorbed radiation dose administered in a single one of a series comprising a fractionated radiation exposure" []
is_a: RBO:010016 ! radiation dose
property_value: IAO:0000112 "The total dose was administered in five dose fractions." xsd:string

[Term]
id: RBO:00000026
name: cosmic radiation
def: "Penetrating ionizing radiation, both particulate and electromagnetic, that originates in outer space" []
is_a: RBO:00000002 ! space radiation

[Term]
id: RBO:00000027
name: galactic cosmic radiation
def: "Galactic cosmic radiation consists of high-energy charged particles originating from outside the solar system" []
is_a: RBO:00000026 ! cosmic radiation
property_value: IAO:0000112 "Galactic cosmic radiation is one of the principal sources of radiation dose outside low-earth orbit" xsd:string

[Term]
id: RBO:00000028
name: solar cosmic radiation
def: "Solar cosmic radiation is high-energy charged particles that originate from the sun." []
is_a: RBO:00000026 ! cosmic radiation
property_value: IAO:0000112 "Solar cosmic radiation contributes to the radiation dose to humans in space." xsd:string

[Term]
id: RBO:00000029
name: dose rate
def: "The measurement datum representing a dose to an organism or object per unit time." []
is_a: IAO:0000109
property_value: IAO:0000112 "The dose rate was 0.5 mGy/min." xsd:string

[Term]
id: RBO:00000033
name: spacecraft
def: "Vehicles, crewed or uncrewed, which are designed to orbit about the Earth or another celestial body or be placed into a trajectory to another celestial body or location in space." []
is_a: OBI:0000968
property_value: IAO:0000112 "The Apollo spacecraft took 24 astronauts to the Moon between 1968 and 1972." xsd:string
property_value: IAO:0000119 "NASA Thesaurus, 1988" xsd:string

[Term]
id: RBO:00000044
name: spacecraft module
def: "a self-contained unit of a spacecraft" []
is_a: RBO:00000033 ! spacecraft

[Term]
id: RBO:00000045
name: International Space Station module
def: "A self-contained unit of the International Space Station." []
is_a: RBO:00000044 ! spacecraft module
property_value: IAO:0000111 "ISS module" xsd:string
property_value: IAO:0000112 "The experiment was conducted in the International Space Station module Columbus" xsd:string
property_value: IAO:0000112 "The experiment was conducted on the Russian module of the ISS." xsd:string

[Term]
id: RBO:00000046
name: space station
def: "A spacecraft capable of supporting a human crew in orbit for an extended period of time. It lacks major propulsion or landing systems. Stations must have docking ports to allow other spacecraft to dock to transfer crew and supplies." []
is_a: RBO:00000033 ! spacecraft
property_value: IAO:0000112 "Mir was a space station that operated in low Earth orbit from 1986 to 2001, operated by the Soviet Union and later by Russia." xsd:string
property_value: IAO:0000119 "Wikipedia" xsd:string

[Term]
id: RBO:00000047
name: particle accelerator beamline
def: "The path leading from a particle accelerator to an experimental station used in experiments in particle physics, materials science, chemistry, and molecular biology, or in irradiation tests or to produce isotopes." []
is_a: RBO:00000121 ! particle accelerator
property_value: IAO:0000112 "The HIMAC accelerator has a beamline dedicated for radiation biology experiments." xsd:string
property_value: IAO:0000119 "Wikipedia" xsd:string

[Term]
id: RBO:00000049
name: particle accelerator radiation
def: "Radiation produced by a particle accelerator." []
is_a: RBO:00000003 ! ground radiation

[Term]
id: RBO:00000050
name: nuclear reactor radiation
def: "Radiation produced by a nuclear reactor." []
is_a: RBO:00000003 ! ground radiation

[Term]
id: RBO:00000051
name: Cesium-137 gamma radiation
def: "High energy photons emitted during nuclear decay of the Cesium-137 isotope." []
synonym: "Cs-137" EXACT []
is_a: RBO:00000120 ! gamma radiation
property_value: IAO:0000111 "Cs-137 gamma" xsd:string

[Term]
id: RBO:00000052
name: Cobalt-60 gamma radiation
def: "High energy photons emitted during nuclear decay of the Cobalt-60 isotope." []
synonym: "Co-60" EXACT []
is_a: RBO:00000120 ! gamma radiation
property_value: IAO:0000111 "Co-60 gamma" xsd:string

[Term]
id: RBO:00000058
name: Cobalt-57 gamma radiation
def: "High energy photons emitted during nuclear decay of the Cobalt-57 isotope." []
synonym: "Co-57" EXACT []
xref: obo:RBO_00000060
is_a: RBO:00000120 ! gamma radiation
property_value: IAO:0000111 "Co-57 gamma" xsd:string

[Term]
id: RBO:00000060
name: radionuclide
is_a: CHEBI:33250

[Term]
id: RBO:00000061
name: actinide
is_a: RBO:00000060 ! radionuclide

[Term]
id: RBO:00000062
name: actinium
is_a: RBO:00000061 ! actinide

[Term]
id: RBO:00000063
name: americium
is_a: RBO:00000061 ! actinide

[Term]
id: RBO:00000064
name: californium
is_a: RBO:00000061 ! actinide

[Term]
id: RBO:00000065
name: neptunium
is_a: RBO:00000061 ! actinide

[Term]
id: RBO:00000066
name: plutonium
is_a: RBO:00000061 ! actinide

[Term]
id: RBO:00000067
name: thorium
is_a: RBO:00000061 ! actinide

[Term]
id: RBO:00000068
name: uranium
is_a: RBO:00000061 ! actinide

[Term]
id: RBO:00000069
name: ultraviolet radiation
def: "Electromagnetic radiation with photon energies approximately 3-120 eV. High energy UV radiation can be ioinizing." []
is_a: RBO:00000114 ! ionizing electromagnetic radiation
property_value: IAO:0000111 "UV" xsd:string
property_value: IAO:0000118 "UV radiation" xsd:string
property_value: IAO:0000119 http://son.nasa.gov/tass/content/electrospectrum.htm xsd:string

[Term]
id: RBO:00000070
name: radioprotectant
is_a: CHEBI:24432

[Term]
id: RBO:00000071
name: radionuclide chelator
is_a: CHEBI:24432

[Term]
id: RBO:00000072
name: co-carcinogen
is_a: CHEBI:24432

[Term]
id: RBO:00000073
name: radiation response modifier
is_a: CHEBI:24432

[Term]
id: RBO:00000074
name: peptide radiation response modifier
is_a: RBO:00000073 ! radiation response modifier

[Term]
id: RBO:00000075
name: small molecule radiation response modifier
is_a: RBO:00000073 ! radiation response modifier

[Term]
id: RBO:00000076
name: nuclear industry worker
is_a: RBO:00000111 ! occupational role

[Term]
id: RBO:00000077
name: astronaut
is_a: RBO:00000111 ! occupational role

[Term]
id: RBO:00000078
name: military
is_a: RBO:00000111 ! occupational role

[Term]
id: RBO:00000079
name: medical professional
is_a: RBO:00000111 ! occupational role

[Term]
id: RBO:00000080
name: dentist
is_a: RBO:00000079 ! medical professional

[Term]
id: RBO:00000081
name: radiologist
is_a: RBO:00000079 ! medical professional

[Term]
id: RBO:00000082
name: radiobiology study type
is_a: OBI:0000011

[Term]
id: RBO:00000083
name: epidemiological study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000084
name: environmental study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000085
name: lifespan study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000086
name: carcinogenesis study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000087
name: tissue damage study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000088
name: dna damage and repair study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000089
name: physiological study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000090
name: anatomical study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000091
name: external exposure study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000092
name: internal contamination study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000093
name: mixed exposure route study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000094
name: acute external exposure study
is_a: RBO:00000091 ! external exposure study

[Term]
id: RBO:00000095
name: chronic external exposure study
is_a: RBO:00000091 ! external exposure study

[Term]
id: RBO:00000096
name: chronic internal contamination study
is_a: RBO:00000092 ! internal contamination study

[Term]
id: RBO:00000097
name: acute internal contamination study
is_a: RBO:00000092 ! internal contamination study

[Term]
id: RBO:00000098
name: acute mixed exposure route study
is_a: RBO:00000093 ! mixed exposure route study

[Term]
id: RBO:00000099
name: chronic mixed exposure route study
is_a: RBO:00000093 ! mixed exposure route study

[Term]
id: RBO:00000100
name: gene expression study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000101
name: proteomics study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000102
name: marker discovery study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000103
name: therapeutics study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000104
name: survival study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000105
name: metabolomics study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000106
name: nuclear accident study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000107
name: toxicity study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000108
name: endocrine study
is_a: RBO:00000089 ! physiological study

[Term]
id: RBO:00000109
name: offspring study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000110
name: biokinetics study
is_a: RBO:00000082 ! radiobiology study type

[Term]
id: RBO:00000111
name: occupational role
is_a: BFO:0000023

[Term]
id: RBO:00000112
name: high linear energy transfer radiation
def: "Neutrons or charged particles, such as protons or alpha particles that produce ionizing events densely spaced on a molecular scale (e.g., >10 keV-micron^[-1]." []
xref: NCIT:C17052
is_a: RBO:00000116 ! ionizing radiation
property_value: IAO:0000119 "NCRP https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf" xsd:string

[Term]
id: RBO:00000113
name: low linear energy transfer radiation
def: "X and gamma rays or light charged particles such as electrons that produce sparse ionizing events far apart on a molecular scale." []
synonym: "low LET|low-LET" EXACT []
xref: NCIT:C17052
is_a: RBO:00000116 ! ionizing radiation
property_value: IAO:0000119 "NCRP https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf" xsd:string

[Term]
id: RBO:00000114
name: ionizing electromagnetic radiation
def: "Electromagnetic radiation having sufficient energy to remove one or more electrons from an atom" []
is_a: RBO:00000116 ! ionizing radiation

[Term]
id: RBO:00000115
name: radiation dosimeter device
def: "A device that is used to measure the amount of ionizing radiation exposure or absorption." []
synonym: "dosimeter" EXACT []
xref: NCIT:C150121
is_a: OBI:0000968
property_value: IAO:0000111 "radiation dosimeter" xsd:string
property_value: IAO:0000118 "radiation dosimeter" xsd:string
property_value: IAO:0000119 "NCIT" xsd:string

[Term]
id: RBO:00000116
name: ionizing radiation
def: "Particle or electromagnetic radiation with sufficient energy to liberate one or more electrons from an atom." []
synonym: "ionising radiation" EXACT []
xref: NCIT:C17052
is_a: ENVO:01001023
property_value: IAO:0000118 "ionising radiation" xsd:string

[Term]
id: RBO:00000117
name: charged particle radiation
def: "Charged particles with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
xref: NCIT:C18982
is_a: ENVO:01001024
property_value: IAO:0000111 "charged particle" xsd:string
property_value: IAO:0000118 "charged particle" xsd:string

[Term]
id: RBO:00000118
name: risk estimate
xref: NCIT:C19015
is_a: OBI:0001909

[Term]
id: RBO:00000119
name: lifetime risk estimate
xref: NCIT:C19662
is_a: RBO:00000118 ! risk estimate

[Term]
id: RBO:00000120
name: gamma radiation
def: "electromagnetic radiation with photon energies greater than approximately 100 keV" []
xref: NCIT:C44386
is_a: RBO:00000114 ! ionizing electromagnetic radiation
property_value: IAO:0000119 http://son.nasa.gov/tass/content/electrospectrum.htm xsd:string

[Term]
id: RBO:00000121
name: particle accelerator
def: "A device used to impart kinetic energy to subatomic particles by means of electric and magnetic fields" []
xref: NCIT:C94854
is_a: OBI:0000968
is_a: RBO:00005014 ! radiation source

[Term]
id: RBO:00000122
name: nuclear reactor
def: "A device in which nuclear fission may be initiated and controlled in a self-sustaining chain reaction to generate energy or produce useful radiation." []
xref: MESH:D009688
is_a: OBI:0000968
is_a: RBO:00005014 ! radiation source

[Term]
id: RBO:00000123
name: biological process
xref: GO:0008150
is_a: BFO:0000015

[Term]
id: RBO:00000124
name: cellular process
xref: GO:0009987
is_a: RBO:00000123 ! biological process

[Term]
id: RBO:00000125
name: O-16 ion radiation
def: "Atomic nuclei, each with 8 protons and 8 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000126
name: Ar-40  ion radiation
def: "Atomic nuclei, each with 18 protons and 22 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000127
name: Ti-48  ion radiation
def: "Atomic nuclei, each with 22 protons and 26 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000128
name: Kr-84 ion radiation
def: "Atomic nuclei, each with 36 protons and 48 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000129
name: Nb-93 ion radiation
def: "Atomic nuclei, each with 41 protons and 52 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000130
name: Ag-107 ion radiation
def: "Atomic nuclei, each with 47 protons and 60 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000131
name: Xe-129 ion radiation
def: "Atomic nuclei, each with 54 protons and 75 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000132
name: Ta-181 ion radiation
def: "Atomic nuclei, each with 73 protons and 108 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000133
name: Au-197 ion radiation
def: "Atomic nuclei, each with 79 protons and 118 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00000134
name: N-14 ion radiation
def: "Atomic nuclei, each with 7 protons and 7 neutrons with kinetic energy imparted by natural or artificial means (such as by a particle accelerator)" []
is_a: RBO:00005001 ! heavy ion radiation

[Term]
id: RBO:00005001
name: heavy ion radiation
def: "Atomic nuclei, with atomic number 2 or greater and kinetic energy imparted by natural or artificial means" []
is_a: RBO:00000117 ! charged particle radiation

[Term]
id: RBO:00005002
name: light ion radiation
def: "Atomic nuclei, variously defined as having atomic number 2, 3, 4, 5 or 6 and kinetic energy imparted by natural or artificial means" []
is_a: RBO:00000117 ! charged particle radiation

[Term]
id: RBO:00005003
name: charged particle
def: "A particle with a positive or negative electric charge" []
is_a: BFO:0000040

[Term]
id: RBO:00005004
name: Iron-56 nucleus
def: "An atomic nucleus with 26 protons and 30 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005005
name: Silicon-28 nucleus
def: "An atomic nucleus with 14 protons and 14 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005006
name: Carbon-12 nucleus
def: "An atomic nucleus with 6 protons and 6 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005007
name: Helium-4 nucleus
def: "An atomic nucleus with 2 protons and 2 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005008
name: Neon-20 nucleus
def: "An atomic nucleus with 10 protons and 10 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005009
name: space flight
def: "Activity carried out by crewed or robotic vehicles outside the Earth's atmmosphere." []
synonym: "Space flight" EXACT []
is_a: ENVO:03000010
property_value: IAO:0000111 "space flight" xsd:string
property_value: IAO:0000118 "spaceflight" xsd:string

[Term]
id: RBO:00005010
name: absorbed radiation dose
def: "The  amount of energy from any type of ionizing radiation deposited in a specified mass of any medium." []
is_a: RBO:010016 ! radiation dose
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005011
name: absorbed radiation dose rate
def: "The  amount of energy from any type of ionizing radiation deposited in a specified mass of any medium per unit time." []
is_a: RBO:00000029 ! dose rate
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005012
name: ionizing radiation energy
def: "The kinetic energy carried by a particle or photon of ionizing radiation. " []
is_a: RBO:00000116 ! ionizing radiation
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005013
name: x-ray radiation
def: "Electromagnetic radiation with photon energies approximately between 0.1 and 120 keV. The upper end of the x-ray spectrum overlaps with the lower end of the gamma ray spectrum." []
is_a: RBO:00000114 ! ionizing electromagnetic radiation
property_value: IAO:0000111 "x-ray" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "x-ray" xsd:string
property_value: IAO:0000119 http://son.nasa.gov/tass/content/electrospectrum.htm xsd:string

[Term]
id: RBO:00005014
name: radiation source
def: "A material entity which emits radiation" []
is_a: BFO:0000040
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005015
name: sham irradiation
def: "A protocol in which a sample is kept under conditions identical to irradiated samples, without exposure" []
is_a: OBI:0000272
property_value: IAO:0000111 "sham irradiation" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "sham" xsd:string

[Term]
id: RBO:00005016
name: radiation fractionation protocol
def: "A protocol for administering a total radiation dose in two or more increments separated by a specified time interval" []
is_a: IAO:0000104
property_value: IAO:0000111 "fractionation protocol" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "fractionation protocol" xsd:string

[Term]
id: RBO:00005017
name: cis-lunar space
def: "The region of space between the Earth and the Moon" []
is_a: RBO:00000016 ! radiation environment
property_value: IAO:0000111 "cis-lunar space" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005018
name: lunar orbit
def: "A region of space defined by a regular, repeating path of a specified object about Earth's moon" []
is_a: RBO:00000016 ! radiation environment
property_value: IAO:0000111 "lunar orbit" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005019
name: lunar surface
def: "The area of the lunar landmass exposed to space" []
is_a: RBO:00000016 ! radiation environment
property_value: IAO:0000111 "lunar surface" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005020
name: cis-Mars space
def: "The region of space between the Earth and Mars" []
is_a: RBO:00000016 ! radiation environment
property_value: IAO:0000111 "cis-Mars space" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005021
name: Mars orbit
def: "A region of space defined by a regular, repeating path of a specified object about Mars" []
is_a: RBO:00000016 ! radiation environment
property_value: IAO:0000111 "Mars orbit" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005022
name: Mars surface
def: "The area of the Mars landmass exposed to the Martian atmosphere" []
is_a: RBO:00000016 ! radiation environment
property_value: IAO:0000111 "Mars surface" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005023
name: interplanetary space
def: "The region of space in the Solar System between planets" []
is_a: RBO:00000016 ! radiation environment
property_value: IAO:0000111 "interplanetary space" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005024
name: planet surface
def: "The outermost solid or liquid area of a planet" []
is_a: RBO:00000016 ! radiation environment
property_value: IAO:0000111 "planet surface" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005025
name: non-irradiated
def: "An organism or material entity kept unexposed to radiation, for purposes of comparison to a similar organism or material entity that has been exposed to radiation " []
is_a: PATO:0001744
property_value: IAO:0000111 "non-irradiated" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005026
name: ground analog study
def: "A study at a ground facility designed so as to replicate one or more conditions in space (e.g. radiation, microgravity, isolation)" []
is_a: RBO:00000082 ! radiobiology study type
property_value: IAO:0000111 "ground analog experiment" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "ground analog" xsd:string

[Term]
id: RBO:00005027
name: ground control study
def: "An study at a ground facility designed so as to replicate conditions in space (e.g. radiation, microgravity, isolation) with the exception of one condition, so as to ascertain the effects of that condition on an organism or instrument" []
is_a: RBO:00000082 ! radiobiology study type
property_value: IAO:0000111 "ground control" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "ground control" xsd:string

[Term]
id: RBO:00005028
name: irradiation protocol
def: "A protocol for administering radiation to a sample " []
is_a: ENVO:01001488
property_value: IAO:0000111 "irradiation protocol" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005029
name: radiation fraction
def: "One of the series of individual doses administered to a sample in a fractionated irradiation." []
is_a: RBO:00000024 ! dose fraction
property_value: IAO:0000111 "radiation fraction" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "fraction" xsd:string

[Term]
id: RBO:00005030
name: radiation fraction interval
def: "Time between fractions in a fractionated irradiation." []
is_a: RBO:00000029 ! dose rate
property_value: IAO:0000111 "radiation fraction interval" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005031
name: high altitude
def: "The region of the atmosphere above 8000 feet above sea level. Altitudes above 12000 feet are sometimes referred to as very high altitude, and above 18000 feet as extremely high altitude." []
is_a: OBI:0002983
property_value: IAO:0000111 "high altitude" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 https://www.medicinenet.com/high_altitude/definition.htm xsd:string

[Term]
id: RBO:00005032
name: sham-irradiated
def: "A radiation quality resulting from a material entity being kept under similar conditions as an irradiated material entity" []
is_a: RBO:00005025 ! non-irradiated
property_value: IAO:0000111 "sham" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005033
name: parabolic flight aircraft
def: "An aircraft which flies a series of parabolic arcs to simulate micrgravity." []
is_a: ENVO:01001488
property_value: IAO:0000111 "parabolic flight" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "Vomit Comet" xsd:string

[Term]
id: RBO:00005034
name: high altitude research aircraft
def: "An aircraft which flies at altitudes greater than commercial aircraft altitudes for research purposes." []
is_a: ENVO:01001488
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005035
name: uncrewed aerial vehicle
def: "An research aircraft designed to operate without crew members, either autonomously or under control from a ground station" []
is_a: ENVO:01001488
property_value: IAO:0000111 "UAV" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "UAV" xsd:string

[Term]
id: RBO:00005036
name: highly charged energetic nuclei
def: "Fully ionized atomic nuclei with 2 or more protons and energies in excess of tens of MeV per nucleon" []
is_a: RBO:00005003 ! charged particle
property_value: IAO:0000111 "HZE" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "HZE" xsd:string

[Term]
id: RBO:00005037
name: adaptive radiation response study
def: "A study of a response to radiation conditioned by prior administration of radiation of a different type and/or at a different dose or dose rate" []
is_a: RBO:00000082 ! radiobiology study type
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "adaptive" xsd:string

[Term]
id: RBO:00005038
name: average fractionated dose rate
def: "The total dose administered in a series of radiation fractions divided by the elapsed time between the beginning of the first exposure fraction and the end of the last exposure fraction" []
is_a: RBO:00000029 ! dose rate
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005039
name: gamma irradiator
def: "A device which exposes samples to gamma radiation." []
is_a: RBO:00005014 ! radiation source
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005040
name: particle charge
def: "The electric charge of a particle used in an irradiation" []
is_a: UO:0000219
property_value: IAO:0000111 "charge" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005041
name: radiation dosimetry
def: "The measurement of the amount of radiation taken up by a sample." []
is_a: CHMO:0002796
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005042
name: microbeam
def: "A microbeam is a narrow beam of radiation, of micrometer or sub-micrometer dimensions. Together with integrated imaging techniques, microbeams allow precisely defined quantities of damage to be introduced at precisely defined locations." []
is_a: RBO:00000121 ! particle accelerator
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "Wikipedia" xsd:string

[Term]
id: RBO:00005048
name: Niobium-93 nucleus
def: "An atomic nucleus with 41 protons and 52 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005049
name: Silver-107 nucleus
def: "An atomic nucleus with 47 protons and 60 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005050
name: Xenon-129 nucleus
def: "An atomic nucleus with 54 protons and 75 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005051
name: Tantalum-181 nucleus
def: "An atomic nucleus with 73 protons and 108 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005052
name: Gold-197 nucleus
def: "An atomic nucleus with 79 protons and 118 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005053
name: Nitrogen-14 nucleus
def: "An atomic nucleus with 7 protons and 7 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005054
name: Oxygen-16 nucleus
def: "An atomic nucleus with 8 protons and 8 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005055
name: Argon-40  nucleus
def: "An atomic nucleus with 18 protons and 22 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005056
name: Titanium-48  nucleus
def: "An atomic nucleus with 22 protons and 26 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005057
name: Krypton-84 nucleus
def: "An atomic nucleus with 36 protons and 48 neutrons " []
is_a: RBO:010012 ! heavy ion

[Term]
id: RBO:00005066
name: miliigray per second
def: "A derived absorbed dose unit which is equal to one milligray absorbed per second" []
is_a: UO:0000129
property_value: IAO:0000111 "mGy/sec" xsd:string
property_value: IAO:0000118 "mGy/sec " xsd:string

[Term]
id: RBO:00005067
name: Indirect cellular response to stimulus
def: "Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus which acts on another cell and not on the responding cell. The process begins with detection of the stimulus by a cell and ends with a change in state or activity of a different cell" []
is_a: GO:0051716
property_value: IAO:0000111 "Indirect cellular response to stimulus" xsd:string
property_value: IAO:0000112 "This could be used to describe a tissue response to immune stimulation, so for example an IL2 response of endothelial cells in response to lymphocytes stimulated by pathogen." xsd:string
property_value: IAO:0000119 "Paul Schofield" xsd:string

[Term]
id: RBO:00005068
name: Indirect cellular response to radiation
def: "Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of radiation acting on another cell and not on the responding cell. The process begins with detection of radiation by a cell or cells and ends with a change in state or activity of a different cell or cells." []
is_a: RBO:00005067 ! Indirect cellular response to stimulus
relationship: RO:0002404 ENVO:01001023
property_value: IAO:0000112 "The most obvious example is the bystander effect ( Carmel Mothersill, Andrej Rusin, Cristian Fernandez-Palomo & Colin Seymour (2018) History of bystander effects research 1905-present; what is in a name?, International Journal of Radiation Biology, 94:8, 696-707, DOI: 10.1080/09553002.2017.1398436) where a naive cell behaves as if it has been irradiated because of its communication with an irradiated cell. It may also be used to describe the abscopal effect. Note that abscopal effects have been noted for ionising and non-ionising ( RF) radiation, eg. L?ffler MW. et al. . A Non-interventional Clinical Trial Assessing Immune Responses After Radiofrequency Ablation of Liver Metastases From Colorectal Cancer. Front Immunol. 2019 Nov 19;10:2526. doi: 10.3389/fimmu.2019.02526. PMID: 31803175; PMCID: PMC6877671" xsd:string
property_value: IAO:0000119 "Paul Schofield" xsd:string

[Term]
id: RBO:00005069
name: Indirect cellular response to ionising radiation
def: "Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of exposure to ionising radiation which acts on another cell and not on the responding cell. The process begins with detection of the ionising radiation by one cell or cells and ends with a change in state or activity of a different cell or cells." []
is_a: RBO:00005068 ! Indirect cellular response to radiation
property_value: IAO:0000112 "Directly describes the bystander effect (Carmel Mothersill, Andrej Rusin, Cristian Fernandez-Palomo & Colin Seymour (2018) History of bystander effects research 1905-present; what is in a name?, International Journal of Radiation Biology, 94:8, 696-707, DOI: 10.1080/09553002.2017.1398436) but can alo sbe used to describe phenomena related to the abscopal effect, manifest in whole organisms where irradiation of one part of the organism causes changes in another un-irradiated component." xsd:string
property_value: IAO:0000119 "Paul Schofield" xsd:string

[Term]
id: RBO:00005070
name: ionizing radiation device
def: "A device for exposing materials or biological organisms to ionizing radiation for research or therapeutic purposes." []
is_a: RBO:00005014 ! radiation source

[Term]
id: RBO:00005071
name: high-altitude balloon
def: "High-altitude balloons are crewed or uncrewed balloons, usually filled with helium or hydrogen, that are released into the stratosphere, generally attaining between 18 and 37 km (11 and 23 mi; 59,000 and 121,000 ft) above sea level." []
is_a: ENVO:01001488
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "Wikipedia" xsd:string

[Term]
id: RBO:00005072
name: Space flight
def: "Travel beyond the Earth's atmosphere" []
is_a: PATO:0002062
property_value: IAO:0000111 "spaceflight" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:00005074
name: non-targeted effects of ionising radiation
def: "Non-targeted effects of ionising radiation are characterised by cellular responses that occur in cells in which energy from ionizing radiation has not been deposited. The distinct classes of non-targeted effects include Genomic Instability, and Bystander effect which latter includes Abscopal effects and Bystander-mediated adaptive response. These can also arise non-clonally in the progeny of irradiated somatic or germ cells, resulting in radiation-induced genomic instability and transgenerational genomic instability respectively. (Kadhim M, Salomaa S, Wright E, et al. Non-targeted effects of ionising radiation--implications for low dose risk. Mutat Res. 2013;752(2):84-98. doi:10.1016/j.mrrev.2012.12.001)" []
is_a: RBO:00005069 ! Indirect cellular response to ionising radiation
property_value: IAO:0000111 "non-targeted effects of ionising radiation" xsd:string
property_value: IAO:0000117 "Paul Schofield ORCID: 0000-0002-5111-7263" xsd:string
property_value: IAO:0000118 "non-targeted effects" xsd:string
property_value: IAO:0000118 "NTE" xsd:string

[Term]
id: RBO:010000
name: as low as reasonably achievable
def: "A principle of radiation protection philosophy that requires that exposures to ionizing radiation be kept as low as reasonably achievable, economic and social factors being taken into account. The protection from radiation exposure is ALARA when the expen" []
synonym: "ALARA" EXACT []
is_a: IAO:0000104
property_value: IAO:0000111 "ALARA" xsd:string
property_value: IAO:0000112 "One of the measures to ensure ALARA is to minimize the time spent working around radioactive materials." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "ALARA" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010001
name: radiation attenuation
def: "The reduction of radiation intensity upon passage of radiation through matter" []
is_a: BFO:0000182
property_value: IAO:0000112 "Attenuation in concrete or leadshielding is a common method of radiation protection on Earth, but is impractical in space due to mass constraints." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010002
name: biodosimetry
def: "Use of a biological response as an indicator of a dose of an effective agent (e.g., the extent of decline in peripheral blood lymphocytes of humans exposed to ionizing radiation can be used as an indicator of the absorbed dose to the whole body from that " []
is_a: CHMO:0002796
property_value: IAO:0000112 "Biodosimetry was used to measure the exposure of some victims of the Chernobyl nuclear accident." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010003
name: bystander effect
def: "The term used to describe the effects on cells in proximity to irradiated cells, but through which radiation has not passed. In experimental radiation biology, the bystander effect can be investigated  by targeting individual cells, or by using doses low enough that the probability for a given cell to be hit by a particle is less than one." []
is_a: RBO:00005074 ! non-targeted effects of ionising radiation
property_value: IAO:0000112 "The bystander effect can be  studied by identifying cells that were traversed by a charged particle." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010006
name: delta ray
def: "Highly energetic electrons produced during inelastic collisions between ionizing radiation and atomic electrons. In a small proportion of collisions, the ejected electron receives a considerable amount of energy (i.e., >1,000 eV), allowing it to travel a " []
synonym: "delta electron" EXACT []
is_a: RBO:00000117 ! charged particle radiation
property_value: IAO:0000112 "Delta ray energies increase with the velocity of the incident particle." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "delta electron" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010007
name: dose equivalent
def: "The product of the absorbed dose (D) at a point and the quality factor (Q) at that point for the radiation type (i.e., H = DQ). The unit of H is J-kg^[-1] with the special name sievert (Sv)" []
is_a: RBO:010016 ! radiation dose
property_value: IAO:0000112 "The average annual dose equivalent for crew members on the ISS is approximately 300 mSv." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010008
name: excess lifetime risk of cancer
def: "The increased risk from induced cancer due to exposure when the effects over an entire lifetime are accounted for. Individuals who would have died of cancer anyway but die early because of exposure are not included" []
is_a: RBO:00000119 ! lifetime risk estimate
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010009
name: fast neutron
def: "Neutrons of energies above a few hundred kiloelectron volts (keV)" []
is_a: ENVO:01001024
property_value: IAO:0000112 "The sample was irradiated with fast neutrons." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010010
name: fluence
def: "The number of particles or photons per unit of cross-sectional area perpendicular to the direction of the particle (units of m^2 or cm^2) (i.e., particles-m^[-2] or particles-cm^[-2])." []
is_a: IAO:0000109
property_value: IAO:0000112 "The value of the fluence was approximately 1 particle per cm2." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010011
name: flux
def: "The quotient of dN by dt, where dN is the increment of the particle number in the time interval dt. The unit for flux is reciprocal second (s^[-1].)" []
is_a: IAO:0000109
property_value: IAO:0000112 "The flux of cosmic ray muons per cm2 at the surface of the Earth is approximately 1.0." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010012
name: heavy ion
def: "An atomic nucleus, fully stripped of its orbital electrons, containing 2 or more protons. Nuclei containing between 2 protons (helium) and 6 protons (carbon) are sometimes referred to as light ions." []
is_a: CHEBI:33252
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "In RBO--needs def from NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010013
name: linear energy transfer
def: "The energy deposited by an ionizing charged particle or photon in any medium per unit path length." []
synonym: "LET" EXACT []
is_a: IAO:0000109
property_value: IAO:0000112 "Biological effects are a function of LET." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "LET" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010014
name: organ dose
def: "The mean absorbed radiation dose  in a specified tissue or organ of the human body." []
is_a: RBO:010016 ! radiation dose
property_value: IAO:0000112 "Radiation protection standards take into account organ dose as well as whole body dose." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010015
name: quality factor
def: "Dimensionless factor developed for purposes of radiation protection and assessing health risks in general terms that accounts for the relative biological effectiveness of different radiations in producing stochastic effects and is used to relate absorbed " []
is_a: OBI:0001909
property_value: IAO:0000112 "Neutrons have a high quality factor compared to photons." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010016
name: radiation dose
def: "A measurement datum of the quantity of radiation absorbed by a substance or organism. The term \"radiation dose\" may for example refer to absorbed dose, organ dose, dose equivalent or equivalent dose, depending upon context and weighting factor(s)." []
is_a: OBI:0000984
property_value: IAO:0000112 "The samples received a dose of 1 Gy. (The use of the gray unit implies that \"dose\" refers to a measured quantity, typically absorbed dose or organ dose.)" xsd:string
property_value: IAO:0000112 "The samples received a dose of 1 Sv. (The use of the sievert unit implies that \"dose\" refers to a der" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string

[Term]
id: RBO:010017
name: radiation quality
def: "Currently under discussion: [A general term referring to the relative biological effectiveness of the radiation of interest. For example, the absorbed dose from an exposure to neutron radiation may be quantitatively the same as that from an exposure to ga" []
is_a: PATO:0001018
property_value: IAO:0000112 "Radiation quality has been commonly expressed in terms of the LET of the ionizing particles that deliver the absorbed dose. (Rossi, 1959)" xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010018
name: radiation weighting factor
def: "A factor used to allow for differences in the biological effectiveness between different radiations when calculating equivalent dose (H_T) (see equivalent dose). These factors are independent of the tissue or organ irradiated." []
is_a: OBI:0001909
property_value: IAO:0000112 "Radiation weighting factors may change as more data on biological effects are obtained." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010019
name: relative biological effectiveness
def: "Factor used to compare the biological effectiveness of absorbed doses from different types of ionizing radiation, determined experimentally. RBE is the ratio of the absorbed dose of a reference radiation to the absorbed dose of the radiation in question r" []
synonym: "RBE" EXACT []
is_a: IAO:0000109
property_value: IAO:0000112 "Neutrons have been found to have a higher RBE than electrons. " xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000118 "RBE" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: RBO:010020
name: tissue equivalence
def: "Denotes a substance with absorbing and scattering properties for a given radiation that sufficiently match those of a particular biological tissue." []
is_a: PATO:0001018
property_value: IAO:0000112 "Tissue equivalent materials can be used to study radiation effects at depth in the human body." xsd:string
property_value: IAO:0000117 "Jack Miller" xsd:string
property_value: IAO:0000119 "NCRP Glossary (https://ncrponline.org/wp-content/themes/ncrp/PDFs/NCRP-Composite-Glossary.pdf)" xsd:string

[Term]
id: UO:0000127
is_a: IAO:0000003