A superconducting X-ray spectrometer with a tantalum absorber and lateral trapping

被引：9

作者：

Gaidis, MC ^{[1
]}

Friedrich, S ^{[1
]}

Segall, K ^{[1
]}

Prober, DE ^{[1
]}

Szymkowiak, AE ^{[1
]}

Moseley, SH ^{[1
]}

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1996年 / 6卷 / 01期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1109/77.488272

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：

We report the development of Nb-Ta-Al-Al2O3-Al superconducting tunnel junction structures for high energy resolution and high efficiency X-ray detection, These devices utilize a Ta X-ray absorber with superconductor ''bandgap engineered'' quasiparticle trapping to improve charge collection, Experimental results at 0.3 K are presented, showing energy resolution of 102 eV full-width-half-maximum for 6 keV X-rays, Collected charge is in excess of 5 x 10(6) electrons. The absorption efficiency is better than 35%; Devices thermally cycle with no change in characteristics.

引用

页码：1 / 4

页数：4

共 19 条

[1] QUASI-PARTICLE TRAPPING AND THE QUASI-PARTICLE MULTIPLIER [J].