A Massive Calorimeter for Single-Particle Detection

  • E. Umlauf
  • M. Bühler
  • T. Fausch
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 112)

Abstract

The compound detector, described here, consists of an absorber with 120 grams of silicon in thermal contact with a paramagnetic sample (about 150 mg) of Tm3A15O12 doped with 0.5% 168Er (nuclear spin zero). With an applied magnetic field B=3 mT, the ground state Kramers doublet of Er exhibits a Zeeman splitting of the order of 10−6 eV. This is the excitation energy for spin-flip processes, which are induced on absorption of energy. The resulting change of the magnetic moment is measured with a SQUID, coupled directly to the magnetic sample [1].

Keywords

Calorimeter 

References

  1. [1]
    E. Umlauf and M. Bühler, Proc. of the SPI-Conference on “EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy III”, San Diego 1992, in print.Google Scholar
  2. [2]
    M. Bühler, T. Fausch and E. Umlauf, to be published.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • E. Umlauf
    • 1
  • M. Bühler
    • 1
  • T. Fausch
    • 1
  1. 1.Walther Meissner InstitutGarchingFed. Rep. of Germany

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