Thermal neutron detection with Ce super(3+ doped LiCaAlF) sub(6) single crystals
Cerium-doped LiCaAlF sub(6 (Ce:LiCAF) crystals have been studied as scintillators in application to thermal neutron detection. Three crystals: high-doping Ce:LiCAF, low-doping Ce:LiCAF with 50% enrichment of ) super(6)Li (both 10 mmx10 mmx2 mm, rectangular) and high-doping Ce:LiCAF with 95% enrichme...
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| Veröffentlicht in: | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2011-10, Vol.652 (1), p.319-322 |
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| container_title | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment |
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| creator | Iwanowska, Joanna Swiderski, Lukasz Moszynski, Marek Yanagida, Takayuki Yokota, Yuui Yoshikawa, Akira Fukuda, Kentaro Kawaguchi, Noriaki Ishizu, Sumito |
| description | Cerium-doped LiCaAlF sub(6 (Ce:LiCAF) crystals have been studied as scintillators in application to thermal neutron detection. Three crystals: high-doping Ce:LiCAF, low-doping Ce:LiCAF with 50% enrichment of ) super(6)Li (both 10 mmx10 mmx2 mm, rectangular) and high-doping Ce:LiCAF with 95% enrichment of super(6Li (Oe50.8 mmx2 mm, discus) coupled to Photonis XP5300B PMT, were tested. The response of these crystals to neutrons emitted from a paraffin moderated ) super(2)38PuBe source has been investigated. Thermal neutron peaks have been found at a Gamma Equivalent Energy (GEE) of [approx]2.5 MeV for high-doping Ce:LiCAF (50% super(6Li), [approx]2 MeV for low-doping Ce:LiCAF (50% ) super(6)Li) and [approx]1.9 MeV for high-doping Ce:LiCAF (95% super(6Li). The light output of Ce:LiCAF was also measured (175-250 phe/MeV from sample to sample). Lithium-6 glass GS20 from Saint Gobain was used as a reference scintillator (Oe50 mmx2 mm, circle). Relative neutron efficiency, normalized to that of GS20 lithium glass, as well as gamma-neutron intrinsic efficiency for all tested samples was calculated. Intrinsic efficiency on thermal neutron detection for small Ce:LiCAF samples was estimated at about 32-35% of that of GS20 and for large Ce:LiCAF sample as about 82% of that of GS20.) |
| doi_str_mv | 10.1016/j.nima.2010.09.182 |
| format | Article |
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Section A, Accelerators, spectrometers, detectors and associated equipment</jtitle><date>2011-10-01</date><risdate>2011</risdate><volume>652</volume><issue>1</issue><spage>319</spage><epage>322</epage><pages>319-322</pages><issn>0168-9002</issn><abstract>Cerium-doped LiCaAlF sub(6 (Ce:LiCAF) crystals have been studied as scintillators in application to thermal neutron detection. Three crystals: high-doping Ce:LiCAF, low-doping Ce:LiCAF with 50% enrichment of ) super(6)Li (both 10 mmx10 mmx2 mm, rectangular) and high-doping Ce:LiCAF with 95% enrichment of super(6Li (Oe50.8 mmx2 mm, discus) coupled to Photonis XP5300B PMT, were tested. The response of these crystals to neutrons emitted from a paraffin moderated ) super(2)38PuBe source has been investigated. Thermal neutron peaks have been found at a Gamma Equivalent Energy (GEE) of [approx]2.5 MeV for high-doping Ce:LiCAF (50% super(6Li), [approx]2 MeV for low-doping Ce:LiCAF (50% ) super(6)Li) and [approx]1.9 MeV for high-doping Ce:LiCAF (95% super(6Li). The light output of Ce:LiCAF was also measured (175-250 phe/MeV from sample to sample). Lithium-6 glass GS20 from Saint Gobain was used as a reference scintillator (Oe50 mmx2 mm, circle). Relative neutron efficiency, normalized to that of GS20 lithium glass, as well as gamma-neutron intrinsic efficiency for all tested samples was calculated. Intrinsic efficiency on thermal neutron detection for small Ce:LiCAF samples was estimated at about 32-35% of that of GS20 and for large Ce:LiCAF sample as about 82% of that of GS20.)</abstract><doi>10.1016/j.nima.2010.09.182</doi></addata></record> |
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| subjects | Accelerators Computational efficiency Computing time Crystals Enrichment Equivalence Glass Thermal neutrons |
| title | Thermal neutron detection with Ce super(3+ doped LiCaAlF) sub(6) single crystals |
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