A massive bolometer with a 760 g TeO2 crystal as energy absorber, the largest employed underground, has been realized and operated in the Gran Sasso Underground Laboratory for γ- and α-ray spectroscopy. A new system of mechanical suspensions was implemented to reduce vibration and thermal noise, and special care was put to the read-out electronics. As a consequence the FWHM resolution for high-energy γ-rays became comparable to that of Germanium diodes. The 4.2 keV average FWHM resolution for the 5407 keV line is the best ever obtained for α particles with any type of detector.

Alessandrello, A., Brofferio, C., Cremonesi, O., Fiorini, E., Giuliani, A., Nucciotti, A., et al. (2000). A massive thermal detector for alpha and gamma spectroscopy. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 440(2), 397-402 [10.1016/S0168-9002(99)00928-6].

A massive thermal detector for alpha and gamma spectroscopy

COCCIA, EUGENIO;FAFONE, VIVIANA;
2000

Abstract

A massive bolometer with a 760 g TeO2 crystal as energy absorber, the largest employed underground, has been realized and operated in the Gran Sasso Underground Laboratory for γ- and α-ray spectroscopy. A new system of mechanical suspensions was implemented to reduce vibration and thermal noise, and special care was put to the read-out electronics. As a consequence the FWHM resolution for high-energy γ-rays became comparable to that of Germanium diodes. The 4.2 keV average FWHM resolution for the 5407 keV line is the best ever obtained for α particles with any type of detector.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - Fisica Sperimentale
English
Gamma spectroscopy; Alpha spectroscopy; Cryogenic detectors
Alessandrello, A., Brofferio, C., Cremonesi, O., Fiorini, E., Giuliani, A., Nucciotti, A., et al. (2000). A massive thermal detector for alpha and gamma spectroscopy. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 440(2), 397-402 [10.1016/S0168-9002(99)00928-6].
Alessandrello, A; Brofferio, C; Cremonesi, O; Fiorini, E; Giuliani, A; Nucciotti, A; Pavan, M; Pirro, S; Pessina, G; Parmeggiano, S; Previtali, E; Vanzini, M; Zanotti, L; Coccia, E; Fafone, V; Bucci, C; Rotilio, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/101638
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