GB/T 7465-2015High activity cobalt-60 sealed radioactive sources (English PDF)
高活度钴60密封放射源
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 9, 2015
Implementation date
November 1, 2016
Scope
GB/T 7465-2015 is the English-translated version of 高活度钴60密封放射源.
GB/T 7465-2015 is the Chinese standard "High activity cobalt-60 sealed radioactive sources".
Its scope clause reads: This standard specifies the structure, technical requirements, test methods, inspection rules of high-activity sealed radioactive cobalt 60, logos, and make inspection certificate With instructions, packaging, transport and storage and so on.
This standard applies to radioactivity (hereinafter referred to as activity) of greater than 10TBq cobalt teletherapy source 60gamma industrial irradiation with cobalt 60gamma source, but also for gamma knife treatment with cobalt 60gamma source, cobalt 60gamma source activity detection and other purposes than Co 60gamma 10TBq the source. Its clauses include terms and definitions.
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Document preview — GB/T 7465-2015
National Standard of the People's Republic of China
- ICS
- 27.120.99
- Classification
- F 51
- Replacing
- GB 7465-2009
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 3.1 High activity sealed radioactive cobalt 60
- 3.2 Equivalent activity
- 3.3 Loading activity
- 3.4 Radiation field
1 Scope
This standard specifies the structure, technical requirements, test methods, inspection rules of high-activity sealed radioactive cobalt 60, logos, and make inspection certificate
With instructions, packaging, transport and storage and so on.
This standard applies to radioactivity (hereinafter referred to as activity) of greater than 10TBq cobalt teletherapy source 60gamma industrial irradiation with cobalt
60gamma source, but also for gamma knife treatment with cobalt 60gamma source, cobalt 60gamma source activity detection and other purposes than Co 60gamma 10TBq the source.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB 4075-2009 Sealed radioactive sources - General requirements and classification
GB 11806-2004 safe transport of radioactive materials regulations
Leakage test methods GB 15849-1995 sealed radioactive sources
GB Z161 Medical gamma beam teletherapy protection and safety standards
SEPA sources Encoding Rules on Environment and Development [2004] No. 118, August 24, 2004
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 High activity sealed radioactive cobalt 60
Radioactivity is greater than the source of Cobalt 60 10TBq sealed radioactive sources.
3.2 Equivalent activity
In the center of the source from a certain distance of air kerma rate, if the same is equal to a known activity of radionuclide point source
In the air kerma rate at the same distance, the equivalent activity is equivalent to the activity of a source point source.
3.3 Loading activity
Activity sealed sources of radioactive material within the actual load values.
3.4 Radiation field
Perpendicular to the beam axis of the radiation beam to a planar section (at any distance from the source).
3.5
Radiation field within the air kerma rate (or exposure rate) asymmetry unsymmetryofairkermarate (orexposure rate) inirradiationfield
Kerma rate (or exposure rate) of the air ratio relative deviation from the center of the radiation field symmetry equidistant between points.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 7465
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 7465-2015 | High activity cobalt-60 sealed radioactive sources | current edition | Current |
| GB 7465-2009 | High activity cobalt-60 sealed radioactive sources | previous edition | Superseded |
This page sells the current edition, GB/T 7465-2015. Earlier editions are listed for reference only.
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