HIGH-RESOLUTION DETECTION OF X-RAYS WITH A NB-BASED STJ DETECTOR

被引：12

作者：

KURAKADO, M

TAKAHASHI, T

MATSUMURA, A

机构：

[1] Advanced Materials and Technology Research Laboratories, Nippon Steel Corporation, Kanagawa, 211, 1618 Ida, Nakahara-ku, Kawasaki-shi

[2] Electronics Laboratories, Nippon Steel Corporation, Kanagawa, 211, 1618 Ida, Nakahara-ku, Kawasaki-shi

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1993年 / 93卷 / 3-4期

关键词：

D O I：

10.1007/BF00693477

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A high energy-resolution of 88 eV has been achieved for 5.9-keV x-rays with a large area (178 x 178 mum2) Nb/Al-AlOx/Al/Nb superconducting tunnel junction (STJ) detector, which is stable at room temperature and robust to thermal cycles. The energy resolution is higher than those of semiconductor detectors. The resolution and the short shaping-time-constant, 2 mus, of the main amplifier used to obtain the energy resolution indicate that STJ detectors can be developed as nuclear radiation detectors with high energy resolution even for high rate radiations. Besides, a theoretical limit of energy resolution due to the statistical fluctuation of signal charges is discussed.

引用

页码：567 / 572

页数：6

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