A versatile indirect detector design for hard X-ray microimaging
A versatile indirect detector design for hard X-ray microimaging
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DOI：
10.1088/1748-0221/7/09/p09016
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发表时间：
2012-09-01
影响因子：
1.3
通讯作者：
Rack, A.
中科院分区：
文献类型：
--
作者：
Douissard, P-A;Cecilia, A.;Rack, A.
间接X射线探测器对于高分辨率成像具有突出的重要性，特别是在同步加速器光源下：虽然主要由广泛市售的组件组成，但它们允许在所采用的X射线能量、对探测器的辐射剂量、数据采集速率和空间分辨率方面的广泛应用。通常，间接检测器由薄膜单晶闪烁体、高分辨率可见光显微镜以及相机组成。在这篇文章中，介绍了一种新的基于模块的间接设计，它提供了几个优点：它可以适用于不同的相机，即不同的传感器尺寸，并可以调整工作与（准）单色照明和相应的较低的吸收剂量或强烈的白色光束照射。此外，它还允许在不同的放大率/空间分辨率之间进行机动化快速交换。在欧洲SCINTAX项目范围内开发，现已投入商业使用。将概述在SCINTAX项目中测量的探测器在不同配置（即低剂量或高剂量辐照）下的特性。连同材料研究、无损评估和生命科学的选定应用，它们强调了这种设计的潜力，使高分辨率X射线成像广泛可用。
Indirect X-ray detectors are of outstanding importance for high resolution imaging, especially at synchrotron light sources: while consisting mostly of components which are widely commercially available, they allow for a broad range of applications in terms of the X-ray energy employed, radiation dose to the detector, data acquisition rate and spatial resolving power. Frequently, an indirect detector consists of a thin-film single crystal scintillator and a high-resolution visible light microscope as well as a camera. In this article, a novel modular-based indirect design is introduced, which offers several advantages: it can be adapted for different cameras, i.e. different sensor sizes, and can be trimmed to work either with (quasi-)monochromatic illumination and the correspondingly lower absorbed dose or with intense white beam irradiation. In addition, it allows for a motorized quick exchange between different magnifications / spatial resolutions. Developed within the European project SCINTAX, it is now commercially available. The characteristics of the detector in its different configurations (i.e. for low dose or for high dose irradiation) as measured within the SCINTAX project will be outlined. Together with selected applications from materials research, non-destructive evaluation and life sciences they underline the potential of this design to make high resolution X-ray imaging widely available.