In the field of Double Beta Decay (DBD) searches, the possibility to have high resolution detectors in which background can be discriminated is very appealing. This very interesting possibility can be largely fulfilled in the case of a scintillating bolometer containing a Double Beta Decay emitter whose transition energy exceeds the one of the natural gamma line of 208Tl. We present the latest results obtained in the development of such a scintillating bolometer. For the first time, an array of five CdWO4 (116Cd has a Double Beta Decay transition energy of 2805 keV) crystals is tested. The array consists of a plane of four 3 x 3 x 3 cm3 crystals and a second plane consisting of a single 3 x 3 x 6 cm3 crystal. This setup is mounted in hall C of the National Laboratory of Gran Sasso inside a lead shielding in order to reduce as far as possible the environmental background. The aim of this test is to demonstrate the technical feasibility of this technique through an array of detectors, and perform a long background measurement in the best conditions in order to prove the achievable background in the 0mDBD region.

Gironi, L., Arnaboldi, C., Capelli, S., Cremonesi, O., Pessina, G., Pirro, S., et al. (2009). CdWO4 bolometers for double beta decay search. OPTICAL MATERIALS, 31(10), 1388-1392 [10.1016/j.optmat.2008.09.014].

CdWO4 bolometers for double beta decay search

GIRONI, LUCA;CAPELLI, SILVIA;CREMONESI, OLIVIERO;PESSINA, GIANLUIGI EZIO;PAVAN, MAURA
2009

Abstract

In the field of Double Beta Decay (DBD) searches, the possibility to have high resolution detectors in which background can be discriminated is very appealing. This very interesting possibility can be largely fulfilled in the case of a scintillating bolometer containing a Double Beta Decay emitter whose transition energy exceeds the one of the natural gamma line of 208Tl. We present the latest results obtained in the development of such a scintillating bolometer. For the first time, an array of five CdWO4 (116Cd has a Double Beta Decay transition energy of 2805 keV) crystals is tested. The array consists of a plane of four 3 x 3 x 3 cm3 crystals and a second plane consisting of a single 3 x 3 x 6 cm3 crystal. This setup is mounted in hall C of the National Laboratory of Gran Sasso inside a lead shielding in order to reduce as far as possible the environmental background. The aim of this test is to demonstrate the technical feasibility of this technique through an array of detectors, and perform a long background measurement in the best conditions in order to prove the achievable background in the 0mDBD region.
Articolo in rivista - Articolo scientifico
Double beta decay; Bolometers; Scintillating; CdWO4
English
1388
1392
5
Gironi, L., Arnaboldi, C., Capelli, S., Cremonesi, O., Pessina, G., Pirro, S., et al. (2009). CdWO4 bolometers for double beta decay search. OPTICAL MATERIALS, 31(10), 1388-1392 [10.1016/j.optmat.2008.09.014].
File in questo prodotto:
File Dimensione Formato  
09OM-CdWO4.pdf

accesso aperto

Dimensione 546.73 kB
Formato Adobe PDF
546.73 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/9553
Citazioni
  • Scopus 25
  • ???jsp.display-item.citation.isi??? 23
Social impact