X-ray detection by superconducting tunnel junctions via phonon propagation in the substrate

被引：9

作者：

Poelaert, A ^{[1
]}

Erd, C ^{[1
]}

Peacock, A ^{[1
]}

Rando, N ^{[1
]}

Verhoeve, P ^{[1
]}

Kozorezov, AG ^{[1
]}

Wigmore, JK ^{[1
]}

机构：

[1] UNIV LANCASTER,SCH PHYS & CHEM,LANCASTER,ENGLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1996年 / 79卷 / 09期

关键词：

D O I：

10.1063/1.361452

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The x-ray performance of Nb-Al-AlOx-Al-Nb superconducting tunnel junctions deposited on sapphire has been studied for phonon mediated detection of x rays absorbed in the substrate in the energy range 750 to 6000 eV. Two separate channels of phonon propagation can be identified. One produces a discrete signal peak, due to high frequency phonons originating from the x-ray absorption sites in a shallow layer below the junction. The other contributes to a monotonic signal tail, due to low frequency phonons, reaching the junction after diffusive or multiple scattering at surfaces. (C) 1996 American Institute of Physics.

引用

页码：7362 / 7369

页数：8

共 23 条

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