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JJG 2043-2010 English PDF

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JJG 2043-2010: Verification scheme of measuring instruments for air-kerma of (60~250) kV X-Ray
Status: Valid

JJG 2043: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 2043-2010English219 Add to Cart 3 days [Need to translate] Verification scheme of measuring instruments for air-kerma of (60~250) kV X-Ray Valid JJG 2043-2010
JJG 2043-1989English239 Add to Cart 2 days [Need to translate] Verification Scheme of Measuring Instruments for Exposure of 60~250kV X-Ray (Radiotherapy Level) Obsolete JJG 2043-1989

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Basic data

Standard ID JJG 2043-2010 (JJG2043-2010)
Description (Translated English) Verification scheme of measuring instruments for air-kerma of (60~250) kV X-Ray
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A58
Classification of International Standard 17.240
Word Count Estimation 9,997
Date of Issue 2010-09-06
Date of Implementation 2011-03-06
Older Standard (superseded by this standard) JJG 2043-1989
Quoted Standard JJG 912-2010; IEC 61267-2005; GB/T 12162.1-2000
Regulation (derived from) AQSIQ Announcement No. 100 of 2010
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to (60 ~ 250) kV X-ray air kerma verification of measuring instruments. It sets out (60 ~ 250) kV X-ray air kerma national benchmark uses, including a full set of basic benchmark measuring instruments, metrology parameters, by means of standard measuring instruments delivered to the working air kerma values ??procedures, and indicate the uncertainty and verification methods.

JJG 2043-2010: Verification scheme of measuring instruments for air-kerma of (60~250) 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 (60 ~ 250) kV X-Ray People's Republic of China National Metrological Verification System tables (60 ~ 250) kVX ray Air kerma measuring instruments of (60 ~ 250) kVX-Ray Issued on. 2010-09-06 2011-03-06 implementation The State Administration of Quality Supervision, Inspection and Quarantine released (60 ~ 250) kVX ray air kerma Measuring instruments Verification System forAir-Kermaof (60 ~ 250) kVX-Ra Replacing JJG 2043-1989 The Verification System by the State Administration of Quality Supervision, Inspection and Quarantine on September 6, 2010 approved, And it shall become effective on March 6, 2011. Focal point. the National Technical Committee of ionizing radiation metrology Drafting units. China Institute of Metrology The Verification System by the responsible National Technical Committee of ionizing radiation measurement interpretation The main drafters Verification System. Wujin Jie (China Institute of Metrology) Drafters participate. Lvya bamboo (China Institute of Metrology) Fan Cheng (China Institute of Metrology)

table of Contents

1 Scope (1) 2 baseline measurement (1) 2.1 (60 ~ 250) kVX ray air kerma national baseline (1) 2.2 (60 ~ 250) kVX ray irradiation apparatus (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 device (3) 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 protection instrumentation (3) 4.8 Environmental monitoring instruments (3) 5 (60 ~ 250) kVX ray air kerma Measuring Instruments System Tables Diagram (3) (60 ~ 250) kVX ray Air kerma measuring instruments Verification System

1 Scope

The verification system applicable to (60 ~ 250) kVX ray air kerma kinetic assay measuring instruments. It Regulation Set the (60 ~ 250) kVX ray air kerma national reference purposes, the reference count included a full set of basic The amount of equipment, metrology parameters, by means of a standard transfer air kerma values to the work program of measuring instruments, and means Ming the uncertainty and verification methods.

2 baseline measurement

(60 ~ 250) kVX ray air kerma measured by the reference instrument (60 ~ 250) kVX ray air ratio Kerma national benchmarks and (60 ~ 250) kVX ray radiation device components. 2.1 (60 ~ 250) kVX ray air kerma national benchmark 2.1.1 (60 ~ 250) 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, which measures Range air kerma rate was (0.01 ~ 0.1) Gy/min. 2.1.2 (60 ~ 250) 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 using Thompson (Townsend) Output charge compensation method to measure parallel plate free-air ionization chamber. Air kerma in reference (60 ~ 250) kV Radiation field of X-ray radiation apparatus reproduce air kerma values. 2.1.3 (60 ~ 250) kVX ray air kerma national benchmarks reproduce air kerma values are not extended Degree of certainty as. Urel = 0.44%, coverage factor k = 2 (if not specified, the following are the same). 2.2 (60 ~ 250) kVX ray radiation device 2.2.1 (60 ~ 250) kVX ray radiation device shall comply with the requirements of the magnitude of reproduction and delivery. 2.2.2 (60 ~ 250) kVX ray radiation device for changing the current method to extend the range and distance to (0.001 to 1) Gy/min. 2.3 (60 ~ 250) kVX ray air kerma reference level by radiation therapy device to the Alternative Method Standard It means 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.

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