YY/T 1548-2017 (YY/T1548-2017, YYT 1548-2017, YYT1548-2017)
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Film dose measurement methods used in radiation therapy
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YY/T 1548-2017
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Standards related to: YY/T 1548-2017
| Standard ID | YY/T 1548-2017 (YY/T1548-2017) | | Description (Translated English) | Film dose measurement methods used in radiation therapy | | Sector / Industry | Medical Device & Pharmaceutical Industry Standard (Recommended) | | Classification of Chinese Standard | C43 | | Classification of International Standard | 11.040.60 | | Word Count Estimation | 22,242 | | Date of Issue | 2017-05-02 | | Date of Implementation | 2018-04-01 | | Drafting Organization | Beijing Medical Devices Testing Institute, Peidweier Radiation Measuring Instruments (Beijing) Co., Ltd., Cancer Hospital of Chinese Academy of Medical Sciences, Shandong Institute of Metrology, Beijing Honglian Medical Devices Development Co., Ltd. | | Administrative Organization | National Technical Committee for Medical Appliance Standardization Technical Committee on Radiation Therapy, Nuclear Medicine and Radiological Equipment (SAC/TC 10/SC 3) | | Regulation (derived from) | China Food & Drug Administration Announcement 2017 No. 49 | | Proposing organization | China Food and Drug Administration | | Issuing agency(ies) | State Food and Drug Administration | YY/T 1548-2017
Film dose measurement methods used in radiation therapy
ICS 11.040.60
C43
People's Republic of China pharmaceutical industry standards
Radiotherapy film dose measurement method
2017-05-02 released
2018-04-01 implementation
State Food and Drug Administration released
Directory
Preface Ⅰ
1 range 1
2 Normative references 1
3 Terms and definitions 1
4 radiotherapy film dose measurement equipment and conditions used 2
5 parameter measurement and adjustment 4
6 dose response calibration 5
7 film after irradiation treatment and preservation 6
Appendix A (informative) scanner and densitometer acceptance testing and quality assurance 8
Appendix B (informative) Radiotherapy commonly used in several film products and their nominal dosage range 10
Appendix C (informative) RG film processing and washing 11
Appendix D (Normative) Practical irradiation and assessment 17
References 19
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents.
This standard proposed by the State Food and Drug Administration.
This standard by the National Standardization Technical Committee of Medical Electrical Radiation therapy, nuclear medicine and radiation dosimetry equipment sub-technical committee
(SAC/TC10/SC3).
This standard was drafted. Beijing Medical Device Inspection Institute, Peidwewe radiation measurement equipment (Beijing) Co., Ltd., Chinese Academy of Medical Sciences
Cancer Hospital, Shandong Institute of Metrology, Beijing Medical Devices Co., Ltd. in conjunction.
The main drafters of this standard. Zhang Xin, Fu Guotao, Tian Zhongqing, Wang Jianli, Zhang Ke, Liu Yang, Zhang Zhongzhu.
Radiotherapy film dose measurement method
1 Scope
This standard specifies the radiotherapy using film for dose measurement methods.
This standard applies to radiotherapy in the film dose measurement.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 17857 medical radiology terms (radiation therapy, nuclear medicine and radiation dosimetry equipment)
Common specifications for flatbed scanners GB/T 18788-2008
3 Terms and definitions
GB/T 17857 and GB/T 18788-2008 as defined in the following terms and definitions apply to this document.
3.1
Radiochromic film
RC film
Used in radiotherapy with radiochromic effect of film; after exposure to radiation solid material (film) to absorb the radiation photons without the need
Potential chemical, optical or thermodynamic development or amplification, to form a stable, real-time color rendering of the image; with or without this material
Layer to prevent the follow-up changes in color sensitive materials.
3.2
Radiographic film radiographicfilm
RG film
Transparent film base, covered on both sides of the substrate or single-sided silver halide crystal particles (mainly silver bromide) latex and latex
Coating composition; when the film is exposed to visible light or ionizing radiation, silver ions (Ag) in the silver halide (AgH) crystal particles are reduced to silver
Atoms (Ag), several silver atoms form the so-called "latent image"; when the film is washed, the developer causes Ag reduction of the crystal particles to Ag, forming a black
Degrees of difference in grayscale images.
3.3
Sensitivity
ISO sensitivity, used to measure light intensity required for normal exposure of light measurement equipment.
3.4
Optical density
Describe the opacity of the film, expressed in terms of light transmission factor.
The mathematical expression is OD = lg
I0
Where, I0, I are after the film before and after the light intensity.
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