YY/T 0590.1-2018Medical electrical equipment—Characteristics of digital X-ray imaging devices - Part 1: Determination of the detective quantum efficiency—Detectors used in radiographic imaging (English PDF)

YY/T 0590.1-2018 is the English-translated version of 医用电气设备 数字X射线成像装置特性 第1-1部分：量子探测效率的测定 普通摄影用探测器.

YY/T 0590.1-2018 is the Chinese standard "Medical electrical equipment—Characteristics of digital X-ray imaging devices - Part 1: Determination of the detective quantum efficiency—Detectors used in radiographic imaging".

Its scope clause reads: This part of YY/T 0590 specifies the use of air kerma and spatial frequency for operation under the medical conditions specified by the manufacturer.

A method of measuring the quantum detection efficiency (DQE) of a digital X-ray imaging apparatus as a function. Target users of this section of YY/T 0590 For manufacturers or well-equipped testing laboratories.

Note 1. Although not recommended, for digital X-ray imaging devices integrated in a clinical system, as long as it complies with the setting requirements specified in this section, This section is not excluded to determine its DQE.

In addition, you need to pay attention to the following points (for example, but not complete). the establishment of the required radiation quality, the minimum Effects of scatter and backscattered radiation, accurate air kerma measurement, placement of test devices, presence of shields, anti-scatter grids Remove.

The scope of this section is limited to digital X-ray imaging devices for single exposure imaging, such as, but not limited to, CR systems, based on straight A system of connected or indirect flat panel detectors.

The YY/T 0590 series of standards is not recommended for image intensifier-based X-ray imaging systems. Note 2. This section is not encouraged for use with X-ray image intensifier-based systems.

The reason is the low frequency drop, vignetting, and Geometric distortions can severely limit the applicability of the measurement methods described in this section.

YY/T 0590 This section does not apply to. digital X-ray imaging devices used in mammography or dental photography; line scan digital X Radiographic imaging device; computed tomography device; dynamic imaging device in which a series of images are acquired, such as perspective and heart Imaging).

Note 3. The above equipment is not included in this section because of many of their parameters (such as radiation quality, geometric relationship, time dependence, etc.) and conventional X-ray photography is very different.

These technical contents are in other parts of the YY/T 0590 series of standards (YY/T 0590.2 and Handled in YY/T 0590.3). Its clauses include terms and definitions.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.

GB/T 3323.2-2019|YY/T 0934-2022|YY/T 0063-2024|YY/T 0480-2021|GB/T 37664.1-2019|YY/T 1959-2025

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