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A calorimetric particle detector using an iridium superconducting phase transition thermometer

1994; Elsevier BV; Volume: 345; Issue: 2 Linguagem: Inglês

10.1016/0168-9002(94)91015-4

1872-9576

Matthias Frank, D. Dummer, S. J. Cooper, J. Igalson, F. Pröbst, W. Seidel,

thermodynamics and calorimetric analyses

We report on a calorimetric particle detector consisting of an 18.3 g silicon crystal and an iridium superconducting phase transition thermometer. The cryogenic calorimeter and the associated apparatus are described in detail. The pulses from irradiation with an α-particle source have a large unexpected overshoot in addition to the component expected from a naive thermal model. The pulse height spectrum displays an energy resolution of 1% FWHM at 6 MeV and good linearity. The noise, electrothermal feedback, and position dependence are discussed.