An endoscopic detector for ultracold neutrons
- 136 Downloads
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 200Gy/h via the addition of a 4m 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.
KeywordsLight Guide Paul Scherrer Institute Storage Vessel Ultracold Neutron Neutron Guide
- 3.R. Golub, D. Richardson, S. Lamoreaux, Ultra-Cold Neutrons (Adam Hilger, Publishing Ltd, 1991).Google Scholar
- 7.M. Wohlmuther, S. Teichmann, Calculation of the dose delivered at the UCN guide west, Paul Scherrer Institut, Technical Memo TM-85-07-03 (2007).Google Scholar
- 8.Datasheet: Lithium glass scintillators (GS10), Applied Scintillation Technologies. .Google Scholar
- 10.Datasheet: Specialty fiber preforms for the most demanding applications, Heraeus Quarzglas Gmbh & Co KG.Google Scholar