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JJG 1198-2023: Medical X-ray Radiation Sources for Oral and Maxillofacial Cone-beam Computed Tomography
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 1198-2023 | English | 359 |
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Medical X-ray Radiation Sources for Oral and Maxillofacial Cone-beam Computed Tomography
| Valid |
JJG 1198-2023
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Standard similar to JJG 1198-2023 JJG 1193 JJG 1192 JJF 1198 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)
Table of contents
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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