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Development of solid-state silicon devices as ultra cold neutron detectors

By C A Baker, K Green, M G D van der Grinten, P S Iaydjiev, S N Ivanov, S Al-Ayoubi, P G Harris, J M Pendlebury, D B Shiers and P Geltenbort


We present a study aimed at developing and optimising methods for ultra-cold neutron (UCN) detection using solid-state silicon detectors. For this we investigated the characteristics of neutron to charged particle converters ((6)Li, (10)B) and compared different deposition techniques. We find that a deposition of 600 μg/cm(2) of (6)LiF is required to ensure maximum UCN detection efficiency using (6)Li as converter. The UCN detectors that we have developed are now fully operational as a flux monitor and as a UCN spectrum analyser in the neutron electric dipole moment experiment at the Institut Laue Langevin in Grenoble

Publisher: Elsevier
Year: 2002
DOI identifier: 10.1016/s0168-9002(02)00391-1
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