Soft X-ray performance of superconducting tunnel junction arrays

被引：15

作者：

Verhoeve, P ^{[1
]}

Kraft, S

Rando, N

Peacock, A

van Dordrecht, A

den Hartog, R

Goldie, DJ

Hart, R

Glowacka, D

机构：

[1] European Space Agcy, Estec, Dept Space Sci, Div Astrophys, NL-2200 AG Noordwijk, Netherlands

[2] Oxford Instruments Sci Res Div, Cambridge, England

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1109/77.783745

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A number of 6x6 element arrays of Ta-based superconducting tunnel junctions have been manufactured for photon counting applications with moderate energy resolution in ground-based optical astronomy, The individual array elements shaw low leakage, uniform responsivity across the array, good simultaneous Josephson current suppression and minor crosstalk between adjacent pixels. The same arrays have been characterized in the soft ii-ray range (E=270-1500 eV). The base electrode response shows good energy resolving power (E/Delta E approximate to 140). Unwanted spectral features originating from other parts of the detector can be largely eliminated by risetime filtering. Modifications in the layering are necessary in order to improve the soft ii-ray detection efficiency.

引用

页码：3342 / 3345

页数：4

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