Neutron calibration facility with an Am-Be source for pulse shape discrimination measurement of CsI(Tl) crystals

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 $\gamma$-rays from a ${}^{137}$Cs 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 similar result from a neutron reactor demonstrate the feasibility of performing calibrations of PSD measurements using neutrons from a Am-Be source.

Accepted in JINST

References in corpus (6)

• Limits on WIMP-nucleon interactions with CsI(Tl) crystal detectors
• New Limits on Interactions between Weakly Interacting Massive Particles and Nucleons Obtained with CsI(Tl) Crystal Detectors
• First limit on WIMP cross section with low background CsI(Tl) crystal detector
• Search for Low-Mass Dark Matter with CsI(Tl) Crystal Detectors
• Pulse-shape discrimination with PbWO${}_4$ crystal scintillators
• Heart of Darkness: The Significance of the Zeptobarn Scale for Neutralino Direct Detection

Cited by in corpus (7)

• Limits on Interactions between Weakly Interacting Massive Particles and Nucleons Obtained with NaI(Tl) crystal Detectors
• Pulse-shape discrimination between electron and nuclear recoils in a NaI(Tl) crystal
• Measurement of the quenching and channeling effects in a CsI crystal used for a WIMP search
• Pulse Shape Simulation and Discrimination using Machine-Learning Techniques
• Pulse Shape Discrimination Algorithms: Survey and Benchmark
• Status of the KIMS-NaI experiment
• State of the Art in Direct Dark Matter Detectors: Technologies, Performance, and Future Directions