Cryogenic sources for low temperature detector characterization

Details Cryogenic sources for low temperature detector characterization Cryogenic sources for low temperature detector characterization

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..605..395l&link_type=abstract

LOW TEMPERATURE DETECTORS: Ninth International Workshop on Low Temperature Detectors. AIP Conference Proceedings, Volume 605, p

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Cryogenics, Refrigerators, Low-Temperature Detectors, And Other Low-Temperature Equipment, X- And Gamma-Ray Telescopes And Instrumentation

Scientific paper

Low temperature detector studies require non-contaminating cryogenic sources covering a wide range of energies and activity levels. For detector calibration in case of low background measurements we developed very low activity sources of well-known emission flux. In order to study energy resolution or detection efficiency of microcalorimeters and tunnel junctions, we prepared high activity sources (1 GBq) by electrodeposition. For determination of linearity and voltage-energy response of detectors we designed a multiple-energy source with radioactive isotopes and an integrated optical fibre linked to an infra-red LED. Using a pulse generator, we can irradiate a microcalorimeter with packets of photons of calibrated energy over an energy range from few tens of eV up to several keV. .

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