Spatially resolved study of superconducting tunnel junctions X-ray detectors by low temperature scanning synchrotron microscopy
Spatially resolved study of superconducting tunnel junctions X-ray detectors by low temperature scanning synchrotron microscopy
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低温扫描同步加速器显微镜对超导隧道结X射线探测器的空间分辨研究
DOI：
10.1109/77.919440
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发表时间：
2001
影响因子：
1.8
通讯作者：
N. Kobayashi
中科院分区：
文献类型：
--
作者：
H. Pressler;M. Ohkubo;M. Koike;T. Zama;D. Fukuda;N. Kobayashi
研制了用于超导隧道结X射线探测器空间分析的低温扫描同步辐射显微镜(LTSSM)。通过用高度准直的同步辐射光束扫描工作温度约为0.4K的结，测量了探测器对X射线响应的一维和二维图像。准直是通过在3-6keV范围内的同步辐射中插入安装在扫描单元上的针孔来执行的。LTSSM的空间分辨率在5到10微米之间。目前的结果表明，实验的空间响应与准粒子扩散和边缘损失模型之间存在很大的差异。LTSSM在低温X射线探测器的发展中起着重要的作用。
A low temperature scanning synchrotron microscope (LTSSM) has been developed for spatial analysis of superconducting tunnel junction X-ray detectors. One and two-dimensional images of the detector response to X-rays were measured by scanning the junctions kept at a working temperature of about 0.4 K with a highly collimated synchrotron radiation beam. The collimation was performed by inserting a pinhole mounted on a scanning unit into the synchrotron radiation in the range of 3-6 keV. The spatial resolution of the LTSSM is between 5 and 10 micrometer. The present results indicate a large discrepancy between the experimental spatial response and a quasiparticle diffusion and edge-loss model. The LTSSM plays an important role in the development of cryogenic X-ray detectors.