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Proceedings Paper

Study and realization of Si microcalorimeters for high-resolution spectroscopy
Author(s): Angelo Alessandrello; Chiara Brofferio; David V. Camin; C. Cattadori; Oliviero Cremonesi; Ettore Fiorini; Andrea Giuliani; A. Maglione; Benno Margesin; Angelo Nucciotti; Maura Pavan; Gianluigi Pessina; Giorgio U. Pignatel; Ezio Previtali; Luigi Zanotti
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Paper Abstract

We are developing Si-implanted thermistors to realize high resolution microcalorimeters. We plan to use these devices in an experiment for the determination of the neutrino mass. The measure implies the evaluation of the correct end-point energy of a beta spectrum with a calorimetric approach. Our study is devoted to outline the optimum fabrication process concerning performances and reproducibility. For such reasons we have realized Si thermistors with different concentration of dopant impurities and with different implant geometries. Tests are performed between 4.2 and 1.2 K using a pumped helium cryostat, and selected samples are characterized at very low temperatures in a dilution refrigerator. Good reproducibility of the devices is necessary for producing an array of detectors. At the same time suitable electronics are developed to optimize the detectors preamplifiers link: minimization of the parasitic capacitance is necessary to reduce the integration of signal and to maximize the speed response of the detector.

Paper Details

Date Published: 16 September 1994
PDF: 12 pages
Proc. SPIE 2280, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V, (16 September 1994); doi: 10.1117/12.186831
Show Author Affiliations
Angelo Alessandrello, Univ. di Milano and INFN (Italy)
Chiara Brofferio, Univ. di Milano and INFN (Italy)
David V. Camin, Univ. di Milano and INFN (Italy)
C. Cattadori, Univ. di Milano and INFN (Italy)
Oliviero Cremonesi, Univ. di Milano and INFN (Italy)
Ettore Fiorini, Univ. di Milano and INFN (Italy)
Andrea Giuliani, Univ. di Milano and INFN (Italy)
A. Maglione, IRST (Italy)
Benno Margesin, IRST (Italy)
Angelo Nucciotti, Univ. di Milano and INFN (Italy)
Maura Pavan, Univ. di Milano and INFN (Italy)
Gianluigi Pessina, Univ. di Milano and INFN (Italy)
Giorgio U. Pignatel, Univ. di Trento (Italy)
Ezio Previtali, Univ. di Milano and INFN (Italy)
Luigi Zanotti, Univ. di Milano and INFN (Italy)


Published in SPIE Proceedings Vol. 2280:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V
Oswald H. W. Siegmund; John V. Vallerga, Editor(s)

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