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JJG 1198-2023 English PDF

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US$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 1198-2023: Medical X-ray Radiation Sources for Oral and Maxillofacial Cone-beam Computed Tomography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 1198-2023	359	Add to Cart	4 days	Medical X-ray Radiation Sources for Oral and Maxillofacial Cone-beam Computed Tomography	Valid

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Basic data

Standard ID: JJG 1198-2023 (JJG1198-2023)
Description (Translated English): Medical X-ray Radiation Sources for Oral and Maxillofacial Cone-beam Computed Tomography
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 17,123
Date of Issue: 2023-06-30
Date of Implementation: 2024-06-30
Issuing agency(ies): State Administration for Market Regulation

JJG 1198-2023: Medical X-ray Radiation Sources for Oral and Maxillofacial Cone-beam Computed Tomography

---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.
National Measurement Verification Regulations of the People's Republic of China Medical oral and maxillofacial cone beam computed tomography Device (CBCT) X-ray radiation source Published on 2023-06-30 Implemented on 2024-06-30 Released by the State Administration for Market Regulation Medical oral and maxillofacial cone beam computer CT X-ray Radiation source calibration procedures Responsible unit. National Technical Committee on Ionizing Radiation Measurement Drafting unit. Shenyang Market Supervision Affairs Service and Administration Law Enforcement Center (Shenyang Inspection and Testing Center) Gu'an County Chaoyang Biotechnology Co., Ltd. Liaoning Provincial Institute of Metrology Harbin Metrology Verification and Testing Institute The National Ionizing Radiation Measurement Technical Committee is entrusted with the interpretation of this regulation. Drafter of this regulation. Huang Jinfeng [Shenyang Market Supervision Affairs Service and Administration Law Enforcement Center (Shenyang Inspection and Testing Center)] Sun Chaoyang (Gu'an County Chaoyang Biotechnology Co., Ltd.) Zhang Gong[Shenyang Market Supervision Affairs Service and Administration Law Enforcement Center (Shenyang Inspection and Testing Center)] Liu Jian (Liaoning Institute of Metrology) Wu Yueming (Harbin Metrology Verification and Testing Institute)

Introduction(Ⅱ) 1 Scope(1) 2 Cited documents(1) 3 Terminology and units of measurement(1) 4 Overview(2) 5 Measurement performance requirements (2) 6 General technical requirements(2) 7 Measuring instrument control(2) 7.1 Verification conditions (2) 7.2 Verification items (3) 7.3 Calibration method (3) 7.3.1 Dose area product(3) 7.3.2 Spatial resolution(4) 7.3.3 Contrast-to-noise ratio index(4) 7.3.4 Uniformity(5) 7.4 Processing of verification results (6) 7.5 Calibration cycle(6) Appendix A Calibration certificate and calibration result notification inner page (recommended) format (7) Appendix B Calibration original record (recommended) format (8) Appendix C Model for calibration (9) Appendix D Calculation method of spatial resolution (11)

Introduction

This procedure is written in accordance with JJF1002-2010 "Rules for Writing National Metrology Verification Procedures". JJF1001-2011 "General Measurement Terms and Definitions", JJF1059.1-2012 "Measurement Uncertainty Evaluation and Expressions" together constitute the basic series of specifications that support the formulation of this regulation. This regulation is released for the first time. Medical oral and maxillofacial cone beam computed tomography Equipment (CBCT) X-ray radiation source calibration procedures

1 Scope

This procedure applies to the X-ray radiation sources of medical oral and maxillofacial cone beam computed tomography (CBCT) devices. Initial calibration, subsequent calibration and in-use inspection. This procedure does not apply to medical oral and maxillofacial cone beam tomography devices that only have automatic exposure conditions. (CBCT) Calibration of X-ray radiation sources.

2 cited documents

This procedure cites the following documents. JJG 961-2017 Calibration regulations for X-ray radiation sources of medical diagnostic spiral computed tomography devices (CT) JJF1001-2011 General measurement terms and definitions JJF1035-2006 Ionizing radiation measurement terms and definitions DIN6868-161 Image quality assurance in the medical X-ray diagnostic sector - Part 161.For use with digital cones HPA-RPD-065 Regarding the design of X-ray equipment and dental cone beam CT (computed tomography equipment) For dated references, only the dated version applies to this regulation; for undated references, only the dated version applies. The latest version (including all modified units) shall apply to this regulation.

3 Terminology and units of measurement

3.1 Terminology 3.1.1 dose area product doseareaproduct The area of the useful beam measured at the same distance from the focus times the kerma of the air within the cross-section of the useful beam product. The symbol of the quantity corresponding to the dose area product is PKA. 3.1.2 spatialresolution When the difference in attenuation between the object and the background is large enough compared to the noise, the CT scanning device performs imaging The ability to distinguish between different objects. 3.1.3 Uniformity uniformity Consistency of pixel values of homogeneous material images in the entire scanning field. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 1198-2023_English be delivered?

Answer: Upon your order, we will start to translate JJG 1198-2023_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 1198-2023_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 1198-2023_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.