| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9844920 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 6 Pages |
Abstract
Two TeO2 crystal bolometers of 1.3 kg each, the largest single crystals ever operated with this technique, have been successfully realized and tested below 10 mK, in a dilution refrigerator located deep underground in the Gran Sasso National Laboratories. The calibration spectrum, obtained using an external 232Th γ-ray source, shows an energy resolution of 3-4 keV FWHM from 0.5 to 2.6 MeV, for both detectors. In the α region, a 4.3 keV FWHM resolution has been observed on the 5407 keV peak due to the α decay of 210Po, a natural contaminant of TeO2 crystals.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
C. Arnaboldi, C. Brofferio, C. Bucci, P. Gorla, G. Pessina, S. Pirro,