注意：一种基于大规模生产的互补金属氧化物半导体传感器和单板计算机的一次性X光相机。

Note: A disposable x-ray camera based on mass produced complementary metal-oxide-semiconductor sensors and single-board computers.

作者信息

Hoidn Oliver R, Seidler Gerald T

机构信息

Physics Department, University of Washington, Seattle, Washington 98195, USA.

出版信息

Rev Sci Instrum. 2015 Aug;86(8):086107. doi: 10.1063/1.4929713.

DOI:10.1063/1.4929713

PMID:26329247

Abstract

We have integrated mass-produced commercial complementary metal-oxide-semiconductor (CMOS) image sensors and off-the-shelf single-board computers into an x-ray camera platform optimized for acquisition of x-ray spectra and radiographs at energies of 2-6 keV. The CMOS sensor and single-board computer are complemented by custom mounting and interface hardware that can be easily acquired from rapid prototyping services. For single-pixel detection events, i.e., events where the deposited energy from one photon is substantially localized in a single pixel, we establish ∼20% quantum efficiency at 2.6 keV with ∼190 eV resolution and a 100 kHz maximum detection rate. The detector platform's useful intrinsic energy resolution, 5-μm pixel size, ease of use, and obvious potential for parallelization make it a promising candidate for many applications at synchrotron facilities, in laser-heating plasma physics studies, and in laboratory-based x-ray spectrometry.

摘要

我们已将量产的商用互补金属氧化物半导体（CMOS）图像传感器和现成的单板计算机集成到一个X射线相机平台中，该平台针对在2 - 6 keV能量下获取X射线光谱和射线照片进行了优化。CMOS传感器和单板计算机由定制的安装和接口硬件补充，这些硬件可轻松从快速成型服务中获取。对于单像素检测事件，即来自一个光子的沉积能量基本上集中在单个像素中的事件，我们在2.6 keV时实现了约20%的量子效率，分辨率约为190 eV，最大检测速率为100 kHz。该探测器平台有用的固有能量分辨率、5-μm像素尺寸、易用性以及明显的并行化潜力，使其成为同步加速器设施、激光加热等离子体物理研究以及基于实验室的X射线光谱分析等许多应用的有前途的候选者。