GB/T 17982-2018Models and parameters for calculating radiation doses to the public in the emergency of a nuclear accident (English PDF)
核事故应急情况下公众受照剂量估算的模式和参数
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 14, 2018
Implementation date
December 1, 2018
Scope
GB/T 17982-2018 is the English-translated version of 核事故应急情况下公众受照剂量估算的模式和参数.
GB/T 17982-2018 gives the models and parameters for estimating the radiation doses received by members of the public in a nuclear accident emergency, from emergency monitoring data or plume dispersion results.
It defines the early, intermediate and late phases of an accident and terms such as plume and resuspension, sets the basic principles for dose estimation, and covers early and intermediate phase dose estimation and the principles of dose prediction.
Informative annexes list the radionuclides that matter for public dose and dosimetric parameters for plume gamma and beta exposure, skin, inhalation, ground deposition, ingestion and contaminated fresh and stored foods.
It is used to estimate and evaluate public doses in an emergency, and may be referred to for normal operation of nuclear facilities. It replaces GB/T 17982-2000, was issued on 14 May 2018 and has applied since 1 December 2018.
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Document preview — GB/T 17982-2018
National Standard of the People's Republic of China
- ICS
- 13.280
- Classification
- C 57
- Replacing
- GB/T 17982-2000
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Terms and Definitions
- 3 Basic Principles
- 4 Early accident dose estimation
- 5 Mid-term dose estimation
- 6 Accidental dose prediction principle
- Appendix A (informative) Radionuclides released during nuclear accidents that are important for the estimation of doses received by members of the public
- Appendix B (informative) Important quantities required for model calculation or monitoring at different stages after an accident
- Appendix C (informative appendix) plume irradiation pathway gamma external irradiation dosimetry parameters
- Appendix D (informative) Dosimetric parameters for radiation beta of radioactive inert gases in plumes
- Appendix E (informative) Skin dose conversion factor due to deposition of nuclide in the air or on the skin surface
- Appendix F (informative) Inhaled radionuclide dosimetry parameters
- Appendix G (informative) gamma external irradiation dosimetry parameters caused by ground deposition nuclide
- Appendix H (informative) Organization weight factor
- Appendix I (informative) Ingestion radionuclide dosimetry parameters
- Appendix J (informative) Dosimetric parameters for internal exposure doses from contaminated fresh foods
- Appendix K (informative) Dosimetric parameters for internal exposure doses from contaminated "storage" foods
- Reference
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 17982-2000 "Personal exposure dose estimation mode and parameters in the case of nuclear accident emergency".
Compared with GB/T 17982-2000, the main technical changes of this standard are as follows.
--- Modified some terms and definitions;
--- Modified some data of the relevant parameters in Table A.1, Table F.1, Table F.2, Table F.3, Table G.1, Table H.1, Table I.1, Table I.3.
1 Scope
This standard proposes that the emergency radiation monitoring data (or the corresponding data derived from the plume diffusion model) be estimated at different stages of the nuclear accident emergency. Calculate the patterns and parameters of the public exposure dose.
This standard applies to the estimation and evaluation of the radiation dose received by the public in the event of a nuclear accident emergency. The public is subject to normal operation of nuclear facilities The estimation and evaluation of the dose can also be referred to the application.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1 Emergency
Some need to take immediate action beyond normal working procedures to avoid accidents or mitigate the consequences of accidents, sometimes referred to as Emergency; at the same time, it also refers to immediate action beyond normal working procedures.
2.2 Nuclear accident
A state of severe deviation from operational conditions in nuclear power plants or other nuclear facilities; in this state, the release of radioactive material The release may or may have lost the control it deserved to an unacceptable level.
2.3 Early phase of accident
From the aura of significant radioactive release (ie, the perceived consequences of off-site radiation) to the first few after the release The time of the hour.
2.4 Intermediate phase of accident
The first few hours after the release of radioactive material has continued for a few days to a few weeks. At this stage, pass Most of the release has already occurred, and most of the radioactive material has been deposited on the ground, except when the inert gas is released.
2.5 Late phase of accident
It lasted for a few weeks to a few years since the middle of the accident.
2.6 Smoke plume
An airborne "smoke cloud" of radioactive material released into the environment.
2.7 Resuspension
The process of returning the pollutants from the surface of the ground, the surface of the object, etc., to the atmosphere due to the mechanical disturbance of the soil and the action of the wind.
3 Basic principles
3.1 Estimating the exposure dose of members of the public in the event of a nuclear accident should take into account all major exposure routes and major radioactivity at different stages of the accident.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 26 pages — is available in the English PDF.
Similar standards
Editions of GB/T 17982
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 17982-2018 | Models and parameters for calculating radiation doses to the public in the emergency of a nuclear accident | current edition | Current |
| GB/T 17982-2000 | Models and parameters for calculating radiation doses to the public in the emergency of a nuclear accident | previous edition | Superseded |
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