Cryogenic microcalorimeters for high-resolution energy-dispersive x-ray spectrometry

Godehard Angloher; Michael Altmann; Matthias Buehler; Franz von Feilitzsch; Theo Hertrich; Paul Hettl; Jens Hoehne; Michael Huber; Josef Jochum; Rudolf Moessbauer; Johann Schnagl; Stefanie Waenninger

doi:10.1117/12.366543

22 October 1999 Cryogenic microcalorimeters for high-resolution energy-dispersive x-ray spectrometry

Godehard Angloher, Michael Altmann, Matthias Buehler, Franz von Feilitzsch, Theo Hertrich, Paul Hettl, Jens Hoehne, Michael Huber, Josef Jochum, Rudolf Moessbauer, Johann Schnagl, Stefanie Waenninger

Author Affiliations +

Proceedings Volume 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X; (1999) https://doi.org/10.1117/12.366543
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

We are developing both superconducting tunnel junctions and phase transition thermometers for high resolution x-ray spectroscopy. A resolution of 12 eV has been achieved for aluminum tunnel junctions when irradiated by 5.9 keV x-rays. These devices show linear energy response in the range between 200 eV and 6.5 keV. Phase transition thermometers consisting of an iridium/gold bi-layer and a gold absorber gave a resolution of 15.5 eV at 5.9 keV. The application of both sensor types is facilitated considerably by the use of an ADR cryostat. This mobile system allowed to characterize tunnel junctions at the Bessy I synchrotron.

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Godehard Angloher, Michael Altmann, Matthias Buehler, Franz von Feilitzsch, Theo Hertrich, Paul Hettl, Jens Hoehne, Michael Huber, Josef Jochum, Rudolf Moessbauer, Johann Schnagl, and Stefanie Waenninger "Cryogenic microcalorimeters for high-resolution energy-dispersive x-ray spectrometry", Proc. SPIE 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X, (22 October 1999); https://doi.org/10.1117/12.366543

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