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UCN detection with 6Li-doped glass scintillators

Abstract : We report the results of test measurements aimed at determining the performance of 6Li-doped glass scintillators for ultra-cold neutron detection. Investigations have mainly focused on the reduction of the gamma-ray sensitivity of the scintillators. The probability of gamma interaction has been considerably lowered using very thin glasses. For signals corresponding to full-energy deposition, a background count rate of 8×10−3 s−1 was obtained for a shielded 0.5 cm3 GS10 scintillator located near the PF2 turbine at ILL. The neutron–gamma separation has further been improved using a stack with an 6Li-depleted scintillator and an 6Li-enriched one. Neutron captures leading to partial energy deposition (so-called “edge events”) have strongly been reduced resulting in a clear separation between the neutron and the gamma contributions.
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http://hal.in2p3.fr/in2p3-00466228
Contributor : Sandrine Guesnon <>
Submitted on : Tuesday, March 23, 2010 - 4:07:53 PM
Last modification on : Tuesday, February 19, 2019 - 10:04:05 AM

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G. Ban, K. Bodek, T. Lefort, O. Naviliat-Cuncic, E. Pierre, et al.. UCN detection with 6Li-doped glass scintillators. Particle Physics with Slow Neutrons, May 2008, Grenoble, France. pp.280-283, ⟨10.1016/j.nima.2009.07.083⟩. ⟨in2p3-00466228⟩

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