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JJG 744-2004: Verification Regulation of Medical diagnostic X-ray Radiation Source
Status: Valid JJG 744: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 744-2004 | English | 829 |
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Verification Regulation of Medical diagnostic X-ray Radiation Source
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JJG 744-2004
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| JJG 744-1997 | English | 479 |
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Verification Regulation of Medical Diagnostical X Ray Radiation Source
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JJG 744-1997
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| JJG 744-1991 | English | RFQ |
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Medical Diagnostical x Ray Radiation Source
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JJG 744-1991
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PDF similar to JJG 744-2004
Basic data | Standard ID | JJG 744-2004 (JJG744-2004) | | Description (Translated English) | Verification Regulation of Medical diagnostic X-ray Radiation Source | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A58 | | Classification of International Standard | 17.240 | | Word Count Estimation | 32,311 | | Date of Issue | 2004-06-04 | | Date of Implementation | 2004-12-01 | | Older Standard (superseded by this standard) | JJG 744-1997 | | Quoted Standard | GB 9706.12-1997; GB 8279-2001; GB 9706.3-2000; GB 3100-1993; GB 3101-1993; GB 3102-1993; GB/T 11755.1-1989; GB/T 11755.2-1989; GB/T 10149-1988; SJ/T 11094-1996; WS/T 189-1999; YY/T 0063-2000; FEDERAL PERFORMANCE STANDARD FOR DIAGNOSTIC X-RAY SYSTEMS AND THEIR MAJOR COMPONENTS; FINAL RULE. DEPARTMENT OF HEALTH AND HUMAN SERVICES FOOD AND DRUG ADMINISTRATION 21 CFR PART 1020 [FEDERAL REGISTER: MAY 19, 1994] PART VI | | Summary | This standard applies to medical diagnostic X-ray radiation of the first test, follow-up testing and use of the test. This procedure does not apply to X-ray (CT) radiation, digital photography (CR, DR) radiation, mammography radiation. | JJG 744-2004: Verification Regulation of Medical diagnostic X-ray Radiation Source---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.
Verification Regulation of Medical diagnostic X-ray Radiation Source
People's Republic of China National Metrological Verification Procedures
Medical diagnostic X-ray radiation source
2004-06-04 released
2004-12-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine released
Medical diagnostic X-ray radiation source
Verification procedures
Replacing JJG 744-1997
This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on June 04,.2004, and since
December 1,.2004 shall come into force.
Administrative Organization. National Ionizing Radiation Measurement Technical Committee
Main drafting units. Beijing Institute of Metrology
Capital Medical University Medical Instrument Quality Control Technology Research Center
Participated in the drafting unit. Beijing Siemens Technology Development Co., Ltd.
Beijing Wandong Medical Equipment Co., Ltd.
This procedure entrusts the National Ionizing Radiation Measurement Technical Committee to explain
The main drafters of this procedure.
Guo Hongtao (Beijing Institute of Metrology)
Peng Mingchen (Capital Medical University Medical Instrument Quality Control Technology Research Center)
Participate drafters.
Liang Shaohua (Beijing Siemens Technology Development Co., Ltd.)
Cao Yongjun (Beijing Wandong Medical Equipment Co., Ltd.)
table of Contents
1 Scope (1)
2 References (1)
3 Terms and measurement units (1)
3.1 Terms (1)
3.2 Unit of Measure (2)
4 Overview (2)
5 measurement performance requirements (2)
5.1 radiant output air kerma rate (2)
5.2 Radiation output quality (2)
5.3 Repeatability of Radiation Output (2)
5.4 Radiation Output Linearity (2)
5.5 resolution (4)
5.6 Radiation field and light field consistency (4)
5.7 X-ray tube voltage (4)
5.8 X-ray tube current (4)
5.9 X-ray tube focal point (4)
5.10 Loading time (5)
6 General technical conditions (5)
6.1 Appearance and logo (5)
6.2 Electrical Machinery and Protective Performance (5)
6.3 Manual (5)
7 measuring instruments control (5)
7.1 test conditions (5)
7.2 test items (6)
7.3 test method (7)
7.4 Verification Results Processing (15)
7.5 Verification Period (15)
Appendix A Certificate of Verification and Notice of Verification Results (Inside Page) Format (16)
A.1 Certificate of Verification (inside page) format (16)
A.2 Test result notification (inner page) Format (18)
Appendix B various X-ray tube models and related technical parameters (19)
Medical diagnostic X - ray radiation source verification procedures
1 Scope
This procedure applies to the first test of medical diagnostic X-ray radiation source, follow-up test and the use of the test.
This procedure does not apply to X-ray (CT) radiation sources, digital radiography (CR, DR) radiation sources, mammography
Radiation source.
2 References
This regulation cites the following documents.
GB 9706.12-1997 "Medical Electrical Equipment Part I. Safety General Requirements Third, the standard parallel diagnosis
Broken X-ray equipment radiation protection General requirements "
GB 8279-2001 "medical X-ray diagnosis of radiation health protection requirements"
GB 9706.3-2000 "Medical electrical equipment - Part 2. Diagnostic X-ray generator high-voltage generator
Special safety requirements "
GB 3100 ~ 3102-1993 "quantity and unit"
GB/T 11755.1 ~ 11755.2-1989 "medical diagnostic X-ray tube voltage and tube current test method"
GB/T 10149-1988 "Medical X-ray equipment terminology and symbols"
SJ/T 11094-1996 "Medical X-ray image intensifier TV system performance parameters measurement method"
WS/T 189-1999 "Medical X-ray diagnostic imaging quality control testing specification"
YY/T 0063-2000 "Medical diagnostic X-ray tube assembly focus characteristics"
Federal Performance Standard for Diagnostic X-ray Systems and Their MajorCom-
ponents; Final Rule. Department of Health and Human Services and Drug Admin-
istration21CFRPart 1020 [FederalRegister. May19,.1994] Part VI
When using this code, care should be taken to use the currently valid version of the above cited references.
3 Terms and measurement units
3.1 Terms
3.1.1 Kinetic kerma
Uncharge ionized particles, the mass of the material in the dm release of all charged particles of the initial kinetic energy
Sum dEtr divided by dm. The symbol is K.
3.1.2 kermarate energy rate kermarate
The increase in kinetic energy, dK, over dt, divided by dt. The symbol is K.
3.1.3 Half price layer half-valuelayer
The thickness of the weakened layer that reduces the amount of unidirectional particle flow to half the initial value. The symbol is HVL.
3.1.4 X-ray tube voltage X-raytubevoltage
Potential difference between anode and cathode of X-ray tube.
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