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Measurement of fast neutron detection efficiency with Li-6 and Li-7 enriched CLYC scintillators

Journal Contribution - Journal Article Conference Contribution

© Published under licence by IOP Publishing Ltd. The CLYC (Cs2LiYC6:Ce) crystal belongs to the elpasolite scintillator family, discovered about 15 years ago. It is a very interesting material because of its good energy resolution and its capability to identify and measure gamma rays and fast/thermal neutrons. In the present work, the fast neutron detection efficiency for two different CLYC cylindrical samples has been measured. These two crystals, both with dimension (thickness x diameter) 1"×1", were respectively enriched with more than 99% of 7Li (CLYC-7) and with ∼ 95% of 6Li (CLYC-6). The presence of the 6Li isotope makes the CLYC-6 ideal to detect thermal neutrons. In order to compare the two scintillators, only the detection efficiency for fast neutrons was considered, neglecting the energy region associated to thermal neutrons in both the crystals. The measurement was performed at the L.A.S.A. Laboratory of INFN and University of Milano (Italy), using a 241Am-Be source.
Journal: Proceedings of EDISON 16: 16th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures
ISSN: 1742-6588
Issue: 1
Volume: 763
Publication year:2016