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JJG 2095-2012 English PDF

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JJG 2095-2012: Verification Scheme of Measuring Instruments for Air-Kerma of (10-60) kV X-Ray
Status: Valid
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JJG 2095-2012English219 Add to Cart 3 days [Need to translate] Verification Scheme of Measuring Instruments for Air-Kerma of (10-60) kV X-Ray Valid JJG 2095-2012

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Basic data

Standard ID JJG 2095-2012 (JJG2095-2012)
Description (Translated English) Verification Scheme of Measuring Instruments for Air-Kerma of (10-60) kV X-Ray
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A58
Classification of International Standard 17.240
Word Count Estimation 9,978
Regulation (derived from) AQSIQ Announcement No. 96 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to (10-60) kV X-ray air kerma verification of measuring instruments. It sets out (10-60) kV X-ray air kerma national benchmark uses, including a full set of basic benchmark measuring instruments, metrology parameters, by means of sta

JJG 2095-2012: Verification Scheme of Measuring Instruments for Air-Kerma of (10-60) kV X-Ray

---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 Scheme of Measuring Instruments for Air-Kerma of (10-60) kV X-Ray People's Republic of China National Metrological Verification System tables (10 ~ 60) kVX ray Air kerma measuring instruments MeasuringInstrumentsforAir-Kermaof (10 ~ 60) kVX-Ray Issued on. 2012-06-18 2012-12-18 implementation The State Administration of Quality Supervision, Inspection and Quarantine released (10 ~ 60) kVX ray air kerma Measuring instruments Verification System forAir-Kermaof (10 ~ 60) kVX-Ra Focal point. the National Technical Committee of ionizing radiation metrology Drafting units. China Institute of Metrology Beijing Institute of Metrology detection The Verification System by the responsible National Technical Committee of ionizing radiation measurement interpretation The main drafters of the table. Wujin Jie (China Institute of Metrology) Drafters participate. Section Yang (China Institute of Metrology) Tao (Beijing Institute of Metrology detection)

table of Contents

1 Scope (1) 2 baseline measurement (1) 2.1 (10 ~ 60) kVX ray air kerma national baseline (1) 2.2 (10 ~ 60) other standard device kVX ray air kerma passing reference (1) 3 measurement standards (1) 3.1 X-ray standard therapeutic levels apparatus (1) 3.2 standard X-ray diagnosis apparatus (2) 3.3 X-ray standard level of protection means (2) 3.4 Environmental level X-ray standard device (2) 4 working measuring instruments (2) Therapeutic dose levels of 4.1 meter (2) 4.2 Medical X-ray radiation therapy (2) 4.3 X-ray detection machine (3) 4.4 X-ray measuring instruments (3) 4.5 diagnosis dosimeter (3) 4.6 Medical Diagnostic X-ray radiation source (3) 4.7 Radiation Protection X-ray air kerma (rate) or dose equivalent (rate) measurement and alarm instruments (3) 4.8 Environmental Monitoring X-ray air Shibi kinetic (rate) measuring instruments (3) 5 (10 ~ 60) kVX ray air kerma Measuring Instruments System Tables Diagram (3) (10 ~ 60) kVX ray Air kerma measuring instruments Verification System

1 Scope

The verification system applicable to (10 to 60) Verification kVX ray air Shibi kinetic energy measuring instruments. It provides The (10 ~ 60) kVX ray air kerma national baseline purposes, including a full set of basic benchmark gauge Tools, metrology parameters, by means of a standard transfer air kerma values to the work program of measuring instruments, and to indicate its Uncertainty and verification methods.

2 baseline measurement

(10 ~ 60) kVX ray air kerma by the reference measuring instruments and reference ionization chamber system (10 to 60) kVX ray radiation device components. 2.1 (10 ~ 60) kVX ray air kerma national benchmark 2.1.1 (10 ~ 60) kVX ray air kerma national benchmarks for reproduction and preservation of air kerma (Gy) of value, and by means of radiation to a standard of measuring instruments, measuring instruments work transfer unit value, to ensure National (10 ~ 60) kVX ray air kerma values of unity, the measurement range than the air kerma rate is (0.01 ~ 0.1) Gy/min. 2.1.2 (10 ~ 60) kVX ray air kerma national benchmarks for the free-air ionization chamber system, including flat Andante free-air ionization chamber and ionization charge measurement system. Ionization charge measurement system parallel plate free-air ionization The output of the charge chamber. Air kerma reference in (10 to 60) the radiation field kVX ray radiation device reproducing empty Air kerma values. 2.1.3 (10 ~ 60) kVX ray radiation device shall comply with the magnitude of reproduction and delivery requirements. By changing the current And distance methods to extend the range (0.01 ~ 0.1) Gy/min. 2.1.4 (10 ~ 60) kVX ray air kerma national benchmarks reproduce air kerma values are not extended Degree of certainty as. Urel = 0.56%, coverage factor k = 2 (if not specified, the following are the same). 2.2 (10 ~ 60) other standard device kVX ray air kerma transmission reference (10 ~ 60) kVX ray air kerma by the reference radiation device fitted with an alternative method to the standard therapeutic levels Position, the level of the standard diagnostic apparatus, protective levels of standard equipment transfer value.

3 measurement standard

Standard measuring instruments and radiation dosimeter by the standard device components. Standard radiation dosimeter by normal means Alternative Working-class dosimeters transfer value. 3.1 standard therapeutic levels of X-ray apparatus 3.1.1 X-ray treatment level standard equipment by the treatment level standard dosimeters and treatment of X-ray radiation device composition. 3.1.2 treatment level standard dosimeter air kerma rate measurement range (0.01 ~ 10) Gy/min.

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