BeO μ calorimeter for the 7Be electron capture decay measurement

Details BeO μ calorimeter for the 7Be electron capture decay measurement BeO μ calorimeter for the 7Be electron capture decay measurement

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phrvc..57.2017g&link_type=abstract

Physical Review C (Nuclear Physics), Volume 57, Issue 4, April 1998, pp.2017-2021

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3

Beta Decay, Double Beta Decay, Electron And Muon Capture, Cryogenics, Refrigerators, Low-Temperature Detectors, And Other Low-Temperature Equipment, Calorimeters, Solar Neutrinos

Scientific paper

7Be electron capture decay to 7Li has been investigated by means of a cryogenic μ calorimeter. A cryogenic particle detector, due to its low energy threshold and good energy resolution, allows us to detect for the first time the complete 7Be calorimetric energy spectrum with a peak width of 24 eV full width at half maximum at 112 eV. The observed decrease in the rate of the absorber activity corresponds to the expected 7Be half-life of 53 days. This kind of detector has an important application in the environment of a lithium radiochemical solar neutrino experiment which is in progress in Moscow. A discussion about the possible processes which take place inside the BeO absorber during the energy thermalization is reported.

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