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JJG 1179-2021 English PDF

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US$509.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 1179-2021: Medical Diagnostic X-ray Radiation Sources for Spiral Computed Tomography(CT)Radiation Therapy Simulating Localization
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 1179-2021	509	Add to Cart	4 days	Medical Diagnostic X-ray Radiation Sources for Spiral Computed Tomography(CT)Radiation Therapy Simulating Localization	Valid

Similar standards

GB/T 3222.1 JJG 188 JJF 1396 JJF 2017 JJF 1927 JJG 1181

Basic data

Standard ID: JJG 1179-2021 (JJG1179-2021)
Description (Translated English): Medical Diagnostic X-ray Radiation Sources for Spiral Computed Tomography(CT)Radiation Therapy Simulating Localization
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A58
Word Count Estimation: 23,265
Issuing agency(ies): State Administration for Market Regulation

JJG 1179-2021: Medical Diagnostic X-ray Radiation Sources for Spiral Computed Tomography(CT)Radiation Therapy Simulating Localization

---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.
(Medical diagnostic diagnostic computer tomography (CT) radiotherapy simulation positioning device X radiation source detection fixed point program) People's Republic of China National Metrological Verification Regulations Medical Diagnostic Spiral Computed Tomography (CT) Radiation therapy simulation positioning X-ray radiation source Published on 2021-10-18 2022-04-18 Implementation Released by the State Administration for Market Regulation medical diagnostic spiral computed tomography Device (CT) radiotherapy simulation positioning X-ray radiation source verification regulations Focal Point. National Technical Committee for Measurement of Ionizing Radiation Main drafting unit. Fujian Institute of Metrology Participating in the drafting unit. China Institute of Testing Technology China Jiliang University Southern Medical University This Regulation is entrusted to the National Technical Committee of Ionizing Radiation Measurement to be responsible for the interpretation The main drafters of this regulation. Dong Xu (Fujian Institute of Metrology) Zheng Wei (Fujian Institute of Metrology) Participating drafters. Yang Yong (China Institute of Testing Technology) Du Jianxiong (China Jiliang University) Li Jie (Fujian Institute of Metrology) Li Guoqing (Southern Medical University) Fan Jie (China Institute of Testing Technology)

content

Introduction (Ⅱ) 1 Scope(1) 2 References (1) 3 Terms and units of measurement(1) 4 Overview(3) 5 Measurement performance requirements(3) 6 General technical conditions (5) 7 Measuring Instrument Control(5) 7.1 Verification Conditions (5) 7.2 Verification items (6) 7.3 Verification method (7) 7.4 Processing of Verification Results (11) 7.5 Verification Period(11) Appendix A Recommended Format for the Record of Radiation Source Verification for Simulated Location of CT Radiotherapy (12) Appendix B Recommended Format of the CT Radiotherapy Simulation Positioning Radiation Source Verification Certificate (Inner Page) (14) Appendix C Schematic diagram of detection of spiral CT phantom (15) Appendix D CT Radiotherapy Simulation Positioning Radiation Source 3D Indication Diagram (17)

Introduction

JJF1002-2010 "Rules for the Compilation of National Metrological Verification Regulations", JJF1001-2011 "General Metrology Terms and Definition" and JJF1059.1-2012 "Measurement Uncertainty Evaluation and Representation" together constitute support for the formulation of this Regulation The basic series of specifications. In the formulation of this regulation, reference is made to JJG 961-2017 "Medical Diagnostic Spiral Computed Tomography (CT) X-ray radiation source", AAPMRPT_83 "CT radiotherapy simulation positioning machine and the quality of CT simulation positioning process Quantity Guarantee" and other documents technical requirements and methods. This regulation is published for the first time. Medical Diagnostic Spiral Computed Tomography (CT) Radiotherapy simulation positioning X-ray radiation source verification regulations

1 Scope

This regulation applies to medical diagnostic spiral computed tomography (CT) radiotherapy simulation positioning X-ray The initial verification, subsequent verification and inspection in use of radiation sources (hereinafter referred to as CT radiotherapy analog positioning radiation sources).

2 Reference documents

This regulation cites the following documents. JJG 961-2017 Medical diagnostic spiral computed tomography (CT) X-ray radiation source JJG 1028-2007 Radiotherapy simulation positioning X-ray radiation source GB/T 10149 Terms and Symbols of Medical X-ray Equipment AAPMRPT _83 CT Radiation Therapy Simulation Positioning Machine and Quality Assurance of CT Simulation Positioning Process simulation process) For dated citations, only the dated version applies to this Regulation; for undated citations The latest version (including all amendments) applies to this regulation.

3 Terminology and units of measurement

3.1 Terminology The terms and definitions defined in JJF1001, JJF1035 and the following apply to this regulation. 3.1.1 dose index doseindex 3.1.1.1 CT dose index 100 CTdoseindex100 (CTDI100) Vertical line dose distribution along the tomographic plane from -50mm to 50mm for a single axial scan The integral of is divided by the product of the number of volume slices N and the nominal volume slice thickness T. For beamwidths with N·T less than 40mm. CTDI100=∫ 50mm -50mm D(z) N·Tdz (1) For beam widths with N·T greater than 40mm (all CT amplifiers except for beam limiter settings during measurement The operating conditions of the radiation source for the simulation positioning radiation source remain the same). CTDI100=∫ 50mm -50mm DRefz (N·T)Ref dz· CTDIfreeair,N×T CTDIfreeair,Ref (2) where. D(z)---dose distribution along the z-axis of the vertical line of the body plane (centered at z=0), this dose is divided into The cloth is measured in a polymethyl methacrylate (PMMA, plexiglass) phantom, but As measured by air absorbed dose; ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 1179-2021_English be delivered?

Answer: Upon your order, we will start to translate JJG 1179-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 1179-2021_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 1179-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.