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GB/T 15447-2008: Conversion method of absorbed doses in different materials irradiated by X, γ rays and election beams
Status: Valid GB/T 15447: Evolution and historical versions
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Conversion method of absorbed doses in different materials irradiated by X, γ rays and election beams
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GB/T 15447-2008
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Conversion method of absorbed doses in different materials irradiated by X, γ rays and electron beams
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GB/T 15447-1995
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Basic data | Standard ID | GB/T 15447-2008 (GB/T15447-2008) | | Description (Translated English) | Conversion method of absorbed doses in different materials irradiated by X, �� rays and election beams | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A58 | | Classification of International Standard | 17.240 | | Word Count Estimation | 23,261 | | Date of Issue | 2008-09-19 | | Date of Implementation | 2009-08-01 | | Older Standard (superseded by this standard) | GB/T 15447-1995 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 16 of 2008 (No. 129 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the X, �� radiation and electron beam irradiation, according to the characteristics of the radiation field, the material composition and related measurements, a material known from another material absorbed dose absorbed dose calculation method. Scope of this standard: a) X, �� radiation photon energy range: 0. 01 MeV ~ 20 MeV, b) electron beam energy range | GB/T 15447-2008: Conversion method of absorbed doses in different materials irradiated by X, γ rays and election beams
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Conversion method of absorbed doses in different materials irradiated by X, γ rays and election beams
ICS 17.240
A58
National Standards of People's Republic of China
Replacing GB/T 15447-1995
X, γ-ray and electron beam irradiation of different materials
Conversion method of absorbed dose
Posted 2008-09-19
2009-08-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4. Significance and Use 4
5 absorbed dose algorithm 5
6 values \u200b\u200bcalculated by the absorbent material A material B measured absorbed dose 5
7-ray mass energy absorption coefficient ratio method 6
8 under electron beam irradiation dose absorbed material conversion between 7
Accuracy 8 9
Appendix A (informative) charged particle equilibrium thickness 9
Absorption under Annex B (informative) wide spectrum beam dose calculation example 10
Annex C (informative) rays decreased 14
Annex D (informative) of formula (3) is proved 15
Annex E (informative) dose calculation 16
Annex F (informative) near the single photon energy spectrum absorbed dose conversion example 17
Appendix G (Informative Appendix) 0.1MeV ~ 10MeV electron beam in a certain range of the material of the actual Rp 18
References 19
Foreword
This standard reference ASTM E666.2003 "computing γ or X-ray absorption dose with standard practice" (in English). among them
Chapters 7 and 8 with reference to ISO /ASTM51261.2002 "Guide for the selection and application of food irradiation processing dose measurement system is"
(English version) and ISO /ASTM51649.2005 "energy of 300keV ~ 25MeV electron beam radiation processing dosimetry standard practice"
(In English).
This standard replaces GB/T 15447-1995 "X, conversion method γ-ray and electron beam irradiation of different materials absorbed dose."
This standard and GB/T 15447-1995 compared to the main changes are as follows.
--- According to ASTM standards, increase the "meaning and purpose" section (edition 4.1 and 4.2);
--- According to ASTM standards, the original standard Chapter 5 "X, γ-ray energy fluence integral calculation" decomposition edition Chapter 5 "suck
Received doses of Algorithms "and Chapter 6," absorbed dose calculated by the measured material A material B absorbed dose "(see 1995 edition
Chapter 5;, Chapter 6 edition Chapter 5);
--- According to the ASTM standard, in Chapter 6 increases the formula to calculate the absorbed dose of radiation suitably narrow beam, identified in the calculation of the absorption
Dose reduced coefficient expressions of photons with a suitable narrow beam radiation, energy reduced coefficient suitable wide-beam radiation (see Excerpts
Chapter 6);
--- Increase the informative Appendix C "Ray weakened" (see this edition Appendix C);
--- Increase the informative Appendix D "formula (3) is proved" (see this edition Appendix D);
--- Increase the informative Appendix E "dose calculation" (see this edition Appendix E);
--- There are some editorial changes.
The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F and Appendix G is an informative annex.
The standard proposed by China National Nuclear Corporation.
This standard by the National Standardization Technical Committee of nuclear energy.
This standard was drafted. China Institute of Metrology.
The main drafters. Zhang Yanli, Guo Bin, Liu Zhi Mian, Fancheng, Lvya bamboo.
This standard replaces the standards previously issued as follows.
--- GB/T 15447-1995.
X, γ-ray and electron beam irradiation of different materials
Report No. ICRU60 basic Ionizing Radiation Quantities and Units
3 Terms and Definitions
GB/T 15446 and ICRU Report No. 60 and established the following terms and definitions apply to this standard.
3.1
Yan E d d m1 obtained by dividing the quotient, namely
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