Abstract
We constructed a neutron calibration facility based on a 300-mCi Am-Be source in conjunction with a search for weakly interacting massive particle candidates for dark matter. The facility is used to study the response of CsI(Tl) crystals to nuclear recoils induced by neutrons from the Am-Be source and comparing them with the response to electron recoils produced by Compton scattering of 662-keV γ-rays from a 137Cs source. The measured results on pulse shape discrimination (PSD) between nuclear- and electron-recoil events are quantified in terms of quality factors. A comparison with our previous result from a neutron generator demonstrate the feasibility of performing calibrations of PSD measurements using neutrons from a Am-Be source.
Original language | English |
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Article number | P11015 |
Journal | Journal of Instrumentation |
Volume | 9 |
Issue number | 11 |
DOIs | |
State | Published - 1 Nov 2014 |
Keywords
- Dark Matter detectors (WIMPs, axions, etc.)
- Instrumentation for neutron sources
- Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)