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Title: Research and development of a helium-4 based solar neutrino detector. Progress report, November 1, 1991--April 30, 1993

Technical Report ·
DOI:https://doi.org/10.2172/10103776· OSTI ID:10103776

Superfluid helium possesses unique properties that enable it to be used as the major component of a very sensitive calorimetric detector: it is extremely pure, and the energy deposited in it is carried out by elementary excitations of the liquid which can produce quantum evaporation of He atoms at a free surface. It has a major advantage of being able to achieve very low background levels. Experimental results presented on the development of helium-4 detector include sensitivity, heat capacity of wafer-calorimeters, coincidence measurements, spectrum of alpha particles in helium, and quantum evaporation: angular dependence and efficiency. 29 refs., 16 figs., 1 tab.

Research Organization:
Brown Univ., Providence, RI (United States). Dept. of Physics
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
FG02-88ER40452
OSTI ID:
10103776
Report Number(s):
DOE/ER/40452-9; ON: DE94002417; BR: KB0401000; TRN: 94:001345
Resource Relation:
Other Information: PBD: May 1993
Country of Publication:
United States
Language:
English