DEVELOPMENT OF THE BOLOMETER FOR THE BETA(+)BETA(+) DECAY EXPERIMENT

Authors
ITO Y MINOWA M OOTANI W NISHIGAKI K KISHIMOTO Y WATANABE T OOTUKA Y
Citation
Y. Ito et al., DEVELOPMENT OF THE BOLOMETER FOR THE BETA(+)BETA(+) DECAY EXPERIMENT, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 386(2-3), 1997, pp. 439-442
Citations number
14
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
386
Issue
2-3
Year of publication
1997
Pages
439 - 442
Database
ISI
SICI code
0168-9002(1997)386:2-3<439:DOTBFT>2.0.ZU;2-6
Abstract
We developed a bolometer with a 0.5 g CdTe absorber using a high-sensi tivity NTD germanium thermistor. An energy resolution of 24 keV (FWHM) is obtained for 0.66 to 1.8 MeV gamma-rays. It shows a good linearity of the response in the energy range between 0.66 and 5.5 MeV. The gai n is found to be stable for a period of 72 days of continuous operatio n and relatively insensitive to temperature changes of the refrigerato r. The temperature change of the refrigerator for this period is withi n +/-1 mK. Since this material contains double positron emission (beta (+)beta(+)) nuclides Cd-106, Cd-108 and Te-120, a new series of double beta decay experiments may become possible with this new method.