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What's New?
. Fukushima Decontamination Report
. CRCPD & CDC Grants for Volunteer Corps
. America's Nuclear Future
. February Newsletter
. Boice Nominated President of NCRP
. February Journal
. February ORS
. Schauer Given the Butterfly Award from Image Gently
. Kase President's Report to IRPA
. IRPA13 Accepting Posters
Upcoming Events
. HPS Midyear - Issues in Waste Management
5-8 February 2012
Dallas, Texas
. NRC Regulatory Information Conference
NRC Regulatory Information Conference
13-15 March 2012
Rockville, Maryland
. NCRP Annual Meeting
12-13 March 2012
Washington, DC
. James E. Turner Memorial Symposium
Call for Abstracts
18-19 April 2012
Oak Ridge Associated Universities, Pollard Auditorium, Oak Ridge, Tennessee
. IRPA13
13-18 May 2012
Glasgow, Scotland
. Canadian Radiation Protection Association (CRPA) Annual Meeting
27-30 May 2012
Halifax, Nova Scotia
. ACS Undergrad Summer Schools
10 June- 20 July 2012
. Nuclear Regulatory Commission Meeting Webcasts
February 2012
Bethesda, Maryland
03 February 2012

Radiation Terms and Definitions

This page provides a list of general terms that are used to describe aspects of radiation science. Click on the desired term from the list to retrieve the definition for the term.

Activation  Agreement State  Air sampling  Airborne radioactivity area  ALARA  Alpha particle  Annual limit on intake (ALI)  Atom  Atomic energy  Atomic Energy Commission  Atomic number  Attenuation  Background radiation  Becquerel (Bq)  Beta particle  Bioassay  Biological half-life  Buildup factor  Byproduct  Chain reaction  Charged particle  Collective dose  Committed dose equivalent  Committed effective dose equivalent  Compact  Contamination  Cosmic radiation  Counter  Critical organ  Cumulative dose  Curie (Ci)  Decay products  Decay, radioactive  Declared pregnant woman  Decommission  Decontamination  Depleted uranium  Derived air concentration (DAC)  Detector  Deterministic effect  Dose  Dose rate  Dose, absorbed  Dose, equivalent  Dosimeter  Dosimetry  Effective half-life  Electromagnetic radiation  Electron  Element  Exposure  External radiation  Extremities  Film badge  Fissile material  Fission (fissioning)  Fission gases  Fission products  Fissionable material  Fusion reaction  Gamma radiation  Gamma rays  Gaseous diffusion plant  Geiger-Mueller Counter  Gray (Gy)  Half-life  Half-life (biological)  Half-life (effective)  Health physics  High radiation area  High-enriched uranium  High-level waste  Ionizing-Radiation Warning Symbol  Isotope  Kilo-  Low-level waste  Mega-  Megacurie  Micro-  Microcurie  Mill tailings  Milli-  Millirem  Molecule  Nano-  Nanocurie  Natural uranium  Neutron  Neutron capture  Noble gas  Nonstochastic effect  NORM  Nuclear energy  Nuclear force  Nuclear power plant  Nucleus  Nuclide  Parent  Periodic table  Personnel monitoring  Photon  Pico-  Picocurie  Plutonium (Pu)  Pocket dosimeter  Proportional counter  Proton  Quality factor  Rad  Radiation area  Radiation detection instrument  Radiation sickness (syndrome)  Radiation source  Radiation standards  Radiation warning symbol  Radiation weighting factor  Radioactive contamination  Radioactive series  Radioactivity  Radiography  Radioisotope  Radiological survey  Radiology  Radionuclide  Radiosensitivity  Radium (Ra)  Radon (Rn)  Reference man  rem (Roentgen Equivalent Man)  Risk  Room return  Scattered radiation  Scintillation detector  Sealed source  Shielding  Sievert (Sv)  Somatic effects of radiation  Source material  Source term  Special nuclear material  Stable isotope  Stochastic effects  Survey meter  Terrestrial radiation  Thermoluminescent dosimeter  Tritium  Ultraviolet  Unstable isotope  Uranium  Uranium fuel fabrication facility  Uranium hexafluoride production facility  Waste, radioactive  Weighting factor (WT)  Well-logging  Whole-body counter  Whole-body exposure  Wipe sample  X rays 

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