775 citations · 1.1k across the 9 of their papers we have counts for
3 papers · 1 filter
Measurement of the low-energy quenching factor in germanium using an Y/Be photoneutron source
B. J. Scholz, A. E. Chavarria, J. I. Collar +2
We employ an Y/Be photoneutron source to derive the quenching factor for neutron-induced nuclear recoils in germanium, probing recoil energies from a few hundred eV t…
Measurement of the ionization produced by sub-keV silicon nuclear recoils in a CCD dark matter detector
A. E. Chavarria, J. I. Collar, J. R. Peña +10
We report a measurement of the ionization efficiency of silicon nuclei recoiling with sub-keV kinetic energy in the bulk silicon of a charge-coupled device (CCD). Nuclear recoils a…
A Low-noise Germanium Ionization Spectrometer for Low-background Science
Craig E. Aalseth, Juan I. Collar, Jim Colaresi +7
Recent progress on the development of very low noise high purity germanium ionization spectrometers has produced an instrument of 1.2 kg mass and excellent noise performance. The d…