Performance of Magnetic Penetration Thermometers for X-ray Astronomy

被引：7
|
作者：
Nagler, P. C. [1 ,2 ]
Adams, J. S. [1 ,5 ,6 ]
Balvin, M. A. [1 ]
Bandler, S. R. [1 ,3 ,4 ]
Denis, K. L. [1 ]
Hsieh, W. -T. [1 ]
Kelly, D. P. [1 ]
Porst, J. -P. [1 ,2 ]
Sadleir, J. E. [1 ]
Seidel, G. M. [2 ]
Smith, S. J. [1 ,5 ,6 ]
Stevenson, T. R. [1 ]
机构：
[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[2] Brown Univ, Providence, RI 02912 USA
[3] CRESST, College Pk, MD USA
[4] Univ Maryland, College Pk, MD 20742 USA
[5] CRESST, Baltimore, MD USA
[6] Univ Maryland Baltimore Cty, Baltimore, MD 21228 USA
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2012年 / 167卷 / 3-4期
关键词：
Microcalorimeters; Cryogenic; Detectors; CALORIMETERS; ARRAYS;
D O I：
10.1007/s10909-012-0516-8
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The ideal X-ray camera for astrophysics would have more than a million pixels and provide an energy resolution of better than 1 eV FWHM for energies up to 10 keV. We have microfabricated and characterized thin-film magnetic penetration thermometers (MPTs) that show great promise towards meeting these capabilities. MPTs operate in similar fashion to metallic magnetic calorimeters (MMCs), except that a superconducting sensor takes the place of a paramagnetic sensor and it is the temperature dependence of the superconductor's diamagnetic response that provides the temperature sensitivity. We present a description of the design and performance of our prototype thin-film MPTs with MoAu bilayer sensors, which have demonstrated an energy resolution of similar to 2 eV FWHM at 1.5 keV and 4.3 eV FWHM at 5.9 keV.
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页码：455 / 460
页数：6
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