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An endoscopic detector for ultracold neutrons

Abstract : A new versatile detector for ultracold neutrons (UCN) has been built and operated which combines multi-pixel photon counters and GS10 lithium-doped scintillators. Such detectors can be very small and can be used to monitor UCN inside storage vessels or guides with negligible influence (of order 10(-6)) on the UCN intensity itself. We have shown that such detectors can be used in a very harsh radiation environment of up to 200 Gy/h via the addition of a 4 m long quartz light guide in order to place the radiation-sensitive photon counters outside the hot zone. Additionally we have measured the UCN storage times in situ in this harsh environment.
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Contributor : Sandrine Guesnon <>
Submitted on : Thursday, May 16, 2013 - 2:10:06 PM
Last modification on : Tuesday, February 19, 2019 - 10:04:05 AM

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L. Göltl, Z. Chowdhuri, M. Fertl, F. Gray, R. Henneck, et al.. An endoscopic detector for ultracold neutrons. European Physical Journal A, EDP Sciences, 2013, 49, pp.9. ⟨10.1140/epja/i2013-13009-8⟩. ⟨in2p3-00823240⟩

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