On the development of superconducting tunnel junctions as photon counting spectrometers for application in astrophysics

被引：25

作者：

Peacock, A ^{[1
]}

机构：

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

来源：

PHYSICA B-CONDENSED MATTER | 1999年 / 263卷

关键词：

superconducting tunnel junctions; spectral resolution; astrophysics;

D O I：

10.1016/S0921-4526(98)01260-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The current state of development of superconducting tunnel junctions as photon counting spectroscopic detectors is reviewed and their application to a broad range of astrophysical problems discussed. Arrays of tantalum based junctions have now reached a state of maturity such that serious astronomical applications can be considered over the wavelength range from 0.5 nm to 2 mu m. The agreement between the theoretical resolution, as defined by the tunnel limited resolution, and measurements over this waveband, for both niobium and tantalum based devices, provides a good indication that lower critical temperature elemental superconductors may provide an even improved resolution in the near future. Such devices based on hafnium with a critical temperature of similar to 130 mK are already under development. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：595 / 603

页数：9

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