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WS 262: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| WS 262-2017 | English | 209 |
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Specification for testing of quality control in γ-ray sources afterloading brachytherapy
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| WS/T 262-2017 | English | 349 |
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(Post-installation gamma source brachytherapy quality control testing specification)
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| WS 262-2006 | English | 319 |
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Specification for radiological protection of patients and quality control in γ-ray source afterloading brachytherapy
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Basic data
| Standard ID | WS 262-2017 (WS262-2017) |
| Description (Translated English) | Specification for testing of quality control in ��-ray sources afterloading brachytherapy |
| Sector / Industry | Health Industry Standard |
| Classification of Chinese Standard | C57 |
| Classification of International Standard | 13.100 |
| Word Count Estimation | 9,999 |
| Date of Issue | 2017-04-10 |
| Date of Implementation | 2017-10-01 |
| Older Standard (superseded by this standard) | WS 262-2006 |
| Issuing agency(ies) | National Health and Family Planning Commission of the People's Republic of China |
| Summary | This standard specifies the requirements and methods for the quality control of close-up treatment of post-installed �� source. This standard is applicable to the quality control of 192 ^ Ir and 60 ^ Co close-up treatment. Other gamma source after the installation of treatment with reference. |
WS 262-2017: Specification for testing of quality control in γ-ray sources afterloading brachytherapy
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Specification for testing of quality control in γ-ray sources afterloading brachytherapy
ICS 13.100
C57
People's Republic of China health industry standards
Replacing WS 262-2006
Quality Assurance Testing Specification of Afterloading γ Source Brachytherapy
2017-04-10 released
2017-10-01 implementation
People's Republic of China National Health and Family Planning Commission released
Directory
Preface Ⅰ
1 Scope 1
2 Terms and definitions 1
3 quality control testing requirements 1
4 quality control test items and methods 2
Appendix A (informative) Change in source ionization chamber reading response 6
Foreword
The third chapter of this standard is mandatory, the rest is recommended.
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces WS 262-2006 "post-installed gamma source therapy for patient protection and quality control testing specification", and WS 262-2006 phase
Than the main technical changes are as follows.
--- The standard name changed to "afterloading γ source close treatment quality control testing norms";
--- Increase in the range of 60Co close source after the treatment equipment quality control;
--- Added and revised some terms and definitions;
--- Deleted Chapter 4 radiotherapy unit requirements; Chapter 5 patient radiological protection requirements; Chapter 6 after the installation of radiotherapy equipment to
Seeking; Chapter 7 after the installation of radiotherapy operation requirements and other content;
--- Increased quality control testing requirements, including the quality control equipment testing and requirements such as content;
--- Increased quality control testing methods, including the cumulative positioning error of radioactive sources, the accuracy of source transmission in place, the source of residence time error, storage
Source surface radiation leakage due to surrounding dose equivalent rate, source singly and randomly selected for step or fixed multi-channel repeatability, source alone
And random selection of fixed multi-source multi-channel repeatability.
This standard proposed by the National Health Standards Committee Committee on Radiological Health standards.
This standard was drafted. Chinese Center for Disease Control and Prevention Radiation Protection and Nuclear Safety Medical Institute, Beijing Union Medical College Hospital, Sichuan Province disease pre
Prevention and Control Center, Shanghai Center for Disease Control and Prevention.
The main drafters of this standard. Russell, He Zhijian, Liu Deming, Xue Xian, Qiu Jie, Yuan Jilong, Li Changhong, Liu Ran, Gao Linfeng, Yao Jie.
Quality Assurance Testing Specification of Afterloading γ Source Brachytherapy
1 Scope
This standard specifies the requirements and methods for quality control testing of post-loading gamma source brachytherapy.
This standard applies to 192Ir and 60Co brachytherapy source after the treatment of quality control testing. Other γ source afterloading treatment reference implementation.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Afterloading treatment afterloadingbrachytherapy
Manually or remotely actuated transmission of one or more sealed radioactive sources from a reservoir to a pre-set position applicator
And perform endovascular treatment in the body.
2.2
Applicator applicator
Treatment placed in the human cavity, pipe or tissue, for radioactive sources reside or exercise, and the implementation of special treatment equipment. Such as a needle, tube or
Specially designed gadgets.
2.3
Repository storagecarrier
Containers for one or more sources of radiation configured for after-treatment units.
2.4
Radiation source cumulative positioning error sourceaccumulativeerror
The error between the actual treatment distance and the preset treatment distance of the last one after the loading equipment runs multiple stay points.
2.5
Air kerma can strength airkermastrength
Free space in the source of the vertical axis from the source d air kerma rate and the distance d square product.
2.6
Source Appearance Activity appearanceactivity
When the sealed radioactive source of air than the kinetic energy of kerosene with nuclides generated by the same nuclide than the air release kinetic energy when the same,
Degree as the kind of radionuclide source appearance activity.
3 quality control testing requirements
3.1 pairs of newly installed γ source afterloading treatment equipment should be acceptance testing; 192Ir source, 60Co source afterloading treatment equipment should be conducted once a year
State detection; After the replacement or repair of after-treatment treatment equipment should be tested for stability; 192Ir source, 60Co source afterloading treatment equipment should be regularly
Stability testing (γ source afterloading treatment equipment testing items and technical requirements shall comply with the requirements of Table 1).
3.2 should be equipped with after-loading source activity measuring instrument (such as well-type ionization chamber) and radiation protection measuring instruments.
3.3 should be equipped with a thermometer, measuring range from 0 ℃ ~ 50 ℃, the minimum sub-value of 0.5 ℃, barometer, measuring range 50kPa ~ 106kPa,
The smallest division value 0.1kPa.
...
