Photon energy dependence of spatial non-uniformity in super-conducting tunnel junction detectors between 200 ev and 10 keV

M. Ohkubo, M. Ukibe, T. Zama, T. Ikeuchi, M. Katagiri, S. Ichimura

研究成果: Article査読

3 被引用数 (Scopus)

抄録

It has been demonstrated by Low-Temperature Scanning Synchrotron Microscope that the spatial profiles of Nb/Al/AlOx/Al/Nb detectors are abnormally large in an energy range between 2 and 10keV, and thus the detectors produce no clear total absorption peaks. Below 2keV, on the other hand, full illumination experiments have afforded the evidence that the spatial uniformity is significantly improved, for example, an 100μm square junction has an intrinsic energy resolution of 5.4eV at 200eV. These results reconfirm that carefully designed junction detectors with a reasonable size are ideal for energy-dispersive spectroscopy in a soft X-ray range.

本文言語English
ページ(範囲)231-233
ページ数3
ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
520
1-3
DOI
出版ステータスPublished - 2004 3 11
外部発表はい

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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