Spatially resolved study of superconducting tunnel junctions X-ray detectors by low temperature scanning synchrotron microscopy

Harald Pressler; Masataka Ohkubo; Masaki Koike; Tatsuya Zama; Daiji Fukuda; Naoto Kobayashi

doi:10.1109/77.919440

Spatially resolved study of superconducting tunnel junctions X-ray detectors by low temperature scanning synchrotron microscopy

Harald Pressler^*, Masataka Ohkubo, Masaki Koike, Tatsuya Zama, Daiji Fukuda, Naoto Kobayashi

^*この研究の対応する著者

研究成果: Article › 査読

6 被引用数 (Scopus)

抄録

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.

本文言語	English
ページ（範囲）	696-699
ページ数	4
ジャーナル	IEEE Transactions on Applied Superconductivity
巻	11
号	1 I
DOI	https://doi.org/10.1109/77.919440
出版ステータス	Published - 2001 3月
外部発表	はい

ASJC Scopus subject areas

電子工学および電気工学
物理学および天文学（その他）

文献へのアクセス

10.1109/77.919440

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引用スタイル

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abstract = "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.",

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AU - Fukuda, Daiji

AU - Kobayashi, Naoto

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