The Milano-Gran Sasso double beta decay experiment: Toward a 20-crystal array

被引：23

作者：

Alessandrello, A

Brofferio, C

Bucci, C

Camin, DV

Cremonesi, O

Fiorini, E

Giuliani, A

Nucciotti, A

Pavan, M

Pessina, G

Previtali, E

Zanotti, L

机构：

[1] IST NAZL TUMORI,I-20133 MILAN,ITALY

[2] UNIV MILAN,DIPARTIMENTO FIS,I-20133 MILAN,ITALY

[3] LAB NAZL GRAN SASSO,GRAN SASSO,ITALY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1996年 / 370卷 / 01期

关键词：

D O I：

10.1016/0168-9002(95)01098-X

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

TeO2 thermal detectors are being used by the Milano group to search for neutrinoless double beta decay of Te-130. An upper limit for neutrinoless decay half life of 2.1 x 10(22) yr at 90% CL obtained with a 334 g TeO2 detector has been previously reported. To improve the sensitivity of the experiment an array of twenty 340 g TeO2 crystals will be realised in the next future. As a first step toward the realisation of that experiment a 4 crystal detector has been tested in the Gran Sasso refrigerator. Detector performances, data acquisition and analysis are discussed.

引用

页码：241 / 243

页数：3