| € | Euro |
| ¥ | Yen |
|
ABWR |
Advanced boiling water reactor |
|
AC |
Alternating current |
|
ACRS |
Advisory Committee on Reactor Safeguards |
|
ADAMS |
Agencywide Documents Access and Management System |
|
ADS |
Automatic depressurization system |
|
AEA |
Atomic Energy Act |
|
AEC |
Atomic Energy Commission |
|
AESJ |
Atomic Energy Society of Japan |
|
AFW |
Auxiliary feedwater |
|
ALARA |
As Low As Reasonably Achievable |
|
AM |
Accident management |
|
ANS |
American Nuclear Society |
|
AOP |
Abnormal operating procedures |
|
ASME |
American Society of Mechanical Engineers |
|
ATWS |
Anticipated transient without scram |
|
B.5.b |
Section B.5.b of Order EA-06-137 |
|
BDB |
Beyond design basis |
|
B.P. |
Before present |
|
BWR |
Boiling water reactor |
|
CANDU |
Canada deuterium uranium |
|
CDC |
U.S. Centers for Disease Control and Prevention |
CERCLA
|
Comprehensive Environmental Response, Compensation, and Liability Act |
|
|
CFR |
Code of Federal Regulations |
|
CME |
Coronal mass ejection |
|
CNSC |
Canadian Nuclear Safety Commission |
|
CS |
Core spray |
|
CST |
Condensate storage tank |
|
CV |
Containment vessel |
|
DARPA |
Defense Advanced Research Projects Agency |
|
DARTTM |
Deep-Ocean Assessment and Reporting of Tsunamis |
|
DBA |
Design-basis accident |
|
DBT |
Design-basis threat |
|
DC |
Direct current |
|
DHS |
U.S. Department of Homeland Security |
|
DIET |
National Diet of Japan |
|
DOD |
U.S. Department of Defense |
|
DOE |
U.S. Department of Energy |
|
DRYAMB |
Dry ambient pressure (containment) |
|
D/W |
Drywell |
|
EAL |
Emergency action level |
|
EC |
European Commission |
|
ECCS |
Emergency core cooling system |
|
EDG |
Emergency diesel generator |
|
EDMGs |
Extensive damage mitigation guidelines |
|
ENSI |
Eidgenössisches Nuklearsicherheitsinspektorat (Swiss Federal Nuclear Safety Inspectorate) |
|
ENSREG |
European Nuclear Safety Regulators Group |
|
EOC |
Emergency operations center |
|
EOPs |
Emergency operating procedures |
|
EPRI |
Electric Power Research Institute |
|
EPZ |
Emergency planning zone |
|
ERC |
Emergency response center |
|
ERDA |
Energy Research and Development Administration |
|
EU |
European Union |
|
FEMA |
U.S. Federal Emergency Management Agency |
|
FLEX |
Diverse and Flexible Coping Strategies |
|
FRMAC |
Federal Radiological Monitoring and Assessment Center |
|
GE |
General Electric Company |
|
GRIPS |
National Graduate Institute for Policy Studies (Japan) |
GPS
|
Global Positioning System |
|
|
GRS |
Gesellschaft für Anlagen- und Reaktorsicherheit (GRS), |
|
mbH |
|
|
GWe |
Gigawatt electric |
|
HERP |
Headquarters for Earthquake Research Promotion (Japan) |
|
HHS |
U.S. Department of Health and Human Services |
|
HO |
Hydraulically operated |
|
HPCI |
High-pressure coolant injection |
|
HPCS |
High-pressure core spray |
|
HQ |
Headquarters |
|
HRA |
Human reliability analysis |
|
HSPD |
Homeland Security Presidential Directive |
|
IAEA |
International Atomic Energy Agency |
|
IC |
Isolation condenser |
|
ICECND |
Ice condenser (containment) |
|
ICM |
Interim compensatory measure |
|
ICRP |
International Commission on Radiological Protection |
|
INES |
International Nuclear and Radiological Event Scale |
|
INPO |
Institute of Nuclear Power Operations |
|
IOM |
Institute of Medicine (U.S. National Academies) |
|
INSAG |
International Nuclear Safety Group (International Atomic Energy Agency) |
|
IPEEE |
Individual plant examination of external events |
|
IRSN |
Institut de Radioprotection et de Sûreté Nucléaire (France) |
|
JAEA |
Japan Atomic Energy Agency |
|
JAEC |
Japan Atomic Energy Commission |
|
JAES |
Japan Atomic Energy Society |
|
JANSI |
Japan Nuclear Safety Institute |
|
JANTI |
Japan Nuclear Technology Institute |
|
JAPC |
Japan Atomic Power Company |
|
JNES |
Japanese Nuclear Energy Safety Organization |
|
JSCE |
Japan Society of Civil Engineers |
|
JST |
Japan Standard Time; Japan Science and Technology Agency |
|
KI |
Potassium iodide |
|
K-NET |
Kyoshin Network |
|
KiK-Net |
Kiban Kyoshin Network |
|
L |
Length |
LOCA
|
Loss-of-coolant accident |
|
|
LPCI |
Low-pressure coolant injection |
|
LPCS |
Low-pressure core spray |
|
LR |
License renewal |
|
LWR |
Light-water reactor |
|
MAAP |
Modular accident analysis program |
|
MCR |
Main control room |
|
MELCOR |
Methods for Estimation of Leakages and Consequences of Releases |
|
METI |
Ministry of Economy, Trade and Industry (Japan) |
|
MEXT |
Ministry of Education, Culture, Sports, Science and Technology (Japan) |
|
MHLW |
Ministry of Health, Labor and Welfare (Japan) |
|
MIT |
Massachusetts Institute of Technology |
|
MN |
MegaNewton |
|
MO |
Motor-operated |
|
MOE |
Ministry of the Environment (Japan) |
|
MOU |
Memorandum of understanding |
|
MRFA |
Maximally reasonably foreseeable accident |
|
MSIV |
Main steam isolation valves |
|
MSL |
Main steam line |
|
MW |
Megawatt |
|
MWe |
Megawatt electric |
|
MWt |
megawatt thermal |
|
N/A |
Not applicable |
|
NAE |
National Academy of Engineering (U.S. National Academies) |
|
NAIIC |
Nuclear Accident Independent Investigation Commission (Japan) |
|
NARAC |
National Atmospheric Release Advisory Center |
|
NAS |
National Academy of Sciences (United States) |
|
NCRP |
National Council on Radiation Protection and Measurements |
|
NEA |
Nuclear Energy Agency (Organisation for Economic Co-operation and Development) |
|
NEI |
Nuclear Energy Institute |
|
NEPA |
National Environmental Policy Act |
|
NERHQ |
Nuclear Emergency Response Headquarters |
|
NISA |
Nuclear and Industrial Safety Agency (Japan) |
|
NIST |
National Institute of Standards and Technology |
|
NOAA |
U.S. National Oceanic and Atmospheric Administration |
NPP
|
Nuclear power plant |
|
|
NPS |
Nuclear power station |
|
NRA |
Nuclear Regulation Authority (Japan) |
|
NRC |
National Research Council (U.S. National Academies) |
|
NRF |
National Response Framework |
|
NSC |
Nuclear Safety Commission (Japan) |
|
NTSB |
National Transportation Safety Board |
|
NTTF |
Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident (U.S. Nuclear Regulatory Commission) |
|
O.P. |
Onahama Peil (Onahama Port Construction Standard Surface) |
|
OECD |
Organisation for Economic Co-operation and Development |
|
OL |
Operating license |
|
ONR |
Office for Nuclear Regulation (United Kingdom) |
|
ORNL |
Oak Ridge National Laboratory |
|
OSHA |
U.S. Occupational Safety and Health Administration |
|
P |
Pressure |
|
PAGs |
Protective action guidelines |
|
PAZ |
Precautionary action zone |
|
PCV |
Primary containment vessel |
|
PRA |
Probabilistic risk assessment |
|
PSA |
Probabilistic safety analysis; Probabilistic safety assessment |
|
psi |
Pounds per square inch |
|
psia |
Pounds per square inch absolute |
|
psig |
Pounds per square inch gage |
|
PWR |
Pressurized water reactor |
|
R/B |
Reactor building |
|
RCIC |
Reactor core isolation cooling |
|
REM |
Roentgen equivalent man |
|
REP |
Radiological emergency preparedness |
|
RFP |
Reactor feedwater pump |
|
RHR |
Residual heat removal |
|
RIR |
Risk-informed regulations |
|
RPV |
Reactor pressure vessel |
|
RWCU |
Reactor water cleanup unit |
|
RWST |
Reactor water storage tank |
|
S/C |
Suppression chamber |
SAM
|
Severe accident management |
|
|
SAMG |
Severe accident management guidelines |
|
SBO |
Station blackout |
|
SCJ |
Science Council of Japan |
|
SDF |
Self-Defense Forces (Japan) |
|
SFP |
Spent fuel pool |
|
SG |
Steam generator |
|
SGTS |
Standby gas treatment system |
|
SI |
Système Internationale (International System of Units) |
|
SNF |
Spent nuclear fuel |
|
SNL |
Sandia National Laboratories |
|
SNM |
Special nuclear materials |
|
SPAR |
Standardized plant analysis risk |
|
SPEEDI |
System for Prediction of Environment Emergency Dose Information |
|
SPDS |
Safety parameter display system |
|
SPSA |
Seismic probabilistic safety assessment |
|
SRV |
Safety relief valve |
|
SSAMG |
Shutdown severe accident management guidelines |
|
SSCs |
Structures, systems, and components |
|
T |
Temperature |
|
T/B |
Turbine building |
|
TAF |
Top of active fuel |
|
TEPCO |
Tokyo Electric Power Company |
|
TMI |
Three Mile Island |
|
TOPOFF |
Top officials’ exercises |
|
UCS |
Union of Concerned Scientists |
|
UNSCEAR |
United Nations Scientific Committee on the Effects of Atomic Radiation |
|
USEPA |
U.S. Environmental Protection Agency |
|
USFDA |
U.S. Food and Drug Administration |
|
USGAO |
U.S. Government Accountability Office |
|
USNRC |
U.S. Nuclear Regulatory Commission |
|
V |
Volt |
|
VDC |
Volt DC |
|
WANO |
World Association of Nuclear Operators |
|
WENRA |
Western European Nuclear Regulators’ Association |
|
WHO |
World Health Organization |
