Monday, March 18, 2013

1303.3858 (T. M. Ito et al.)

Scintillation of Liquid Helium for Low-Energy Nuclear Recoils    [PDF]

T. M. Ito, G. M. Seidel
The scintillation properties of liquid helium upon the recoil of a low energy helium atom are discussed in the context of the possible use of this medium as a detector of dark matter. It is found that the prompt scintillation yield in the range of recoil energies from a few keV to 100 keV is somewhat higher than that obtained by a linear extrapolation from the measured yield for an 5 MeV alpha particle. A comparison is made of both the scintillation yield and the charge separation by an electric field for nuclear recoils and for electrons stopped in helium.
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