Detection of particles by an al203/ru02 composite bolometer

✍ Scribed by M. Chapelliera; G. Chardinb; M. Fouchierc; H. Ji; J. Joffrin; J-Y. Prieur; F.B. Rasmussend

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 224 KB
• Volume: 165-166
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/s0921-4526(90)80852-a

✦ Synopsis

We have used a composite bolometer made of a sapphire crystal and ruthenium oxide films to detect individual particles emitted by an 241Am source (5.5 Mev alpha and 60 Kev gamma) The experiment is done in a quick handling dilution fridge at T= 80 mK with a cold FET preamplifier. Performances of such detectors lead to consider them as realistic candidates for the detection of Dark Matter.