Metallic Magnetic Calorimeters for X-Ray Spectroscopy

Author

Fleischmann, Loredana ; Linck, M. ; Burck, A. ; Domesle, C. ; Kempf, S. ; Pabinger, A. ; Pies, C. ; Porst, J.P. ; Rotzinger, H. ; Schäfer, S. ; Weldle, R. ; Fleischmann, A. ; Enss, C. ; Seidel, G.M.

Author_Institution

Kirchhoff-Inst. fur Phys., Univ. Heidelberg, Heidelberg

Volume

19

Issue

2

fYear

2009

fDate

4/1/2009 12:00:00 AM

Firstpage

63

Lastpage

68

Abstract

An increasing number of experiments employ low-temperature radiation/particle detectors which are based on a calorimetric detection scheme and operate at temperatures below 100 mK. Metallic magnetic calorimeters use a metallic paramagnetic temperature sensor in tight thermal contact with the X-ray absorber. The magnetization of the sensor is used to monitor the temperature change of the detector upon the absorption of single photons, which is proportional to the absorbed energy. Low-noise high-bandwidth dc superconducting quantum interference devices read out the small changes in magnetization. An energy resolution of DeltaE _FWHM = 2.7 eV was obtained for X-ray energies up to 6 keV.

Keywords

SQUIDs; X-ray detection; X-ray spectroscopy; calorimeters; magnetic sensors; magnetisation; paramagnetism; temperature sensors; X-ray absorber; X-ray detector; X-ray spectroscopy; electron volt energy 2.7 eV; low-temperature radiation detector; metallic magnetic calorimeter; metallic paramagnetic temperature sensor; particle detector; sensor magnetization; superconducting quantum interference device; temperature change monitoring; thermal contact; Energy measurements; X-ray detectors; superconducting quantum interference devices (SQUIDs);

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2012724

Filename

4782990