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1. 发明专利

JP2003183637A NEUTRON SCINTILLATOR 审中-公开
公开(公告)号：JP2003183637A
公开(公告)日：2003-07-03
申请号：JP2002264969
申请日：2002-09-11
申请人： RIKAGAKU KENKYUSHO , HITACHI CHEMICAL CO LTD , DAIICHI KIDEN KK
发明人： SHIMIZU HIROHIKO , OKU TAKAYUKI , ADACHI TOMOHIRO , SAKAI KENJI , ISHIBASHI HIROYUKI , SUSA KENZO , NACHIMUSU SENGUTTOBAN , ISHII MITSURU , KOBAYASHI MASAAKI
IPC分类号： G01T1/20 , C09K11/00 , C09K11/63 , C30B29/22 , G01T1/202 , G01T3/06
摘要： PROBLEM TO BE SOLVED: To provide a neutron scintillator not containing heavy metals, that is indispensable for realizing such a scintillation detector, which has low sensitivity to gamma rays but enough counts high-intensity neutrons. SOLUTION: This neutron scintillator is formed by adding copper to an oxide composed of lithium and boron. The oxide composed of the lithium and the boron has a compositional ratio corresponding to Li 2 B 4 O 7 and comprises a transparent single crystal. The copper is contained in an amount of 0.001-0.1 wt.%. Further, a single crystal which is grown in the direction of the axis is cut off perpendicular to the direction of growing of the crystal and the (001) plane of the cut-off crystal is polished, so that the polished single crystal is used as a scintillator plate crystal. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003121552A RADIATION DETECTOR 审中-公开
公开(公告)号：JP2003121552A
公开(公告)日：2003-04-23
申请号：JP2001313430
申请日：2001-10-11
申请人： RIKAGAKU KENKYUSHO
发明人： ADACHI TOMOHIRO , OKU TAKAYUKI , SHIMIZU HIROHIKO , SAKAI KENJI
IPC分类号： G01T1/20 , G01T1/00 , G01T3/00 , H01L27/14 , H01L31/09 , H04N5/321
摘要： PROBLEM TO BE SOLVED: To provide a radiation detector, in which a plurality of radiation detectors can be used side by side and whose high detection efficiency can be ensured. SOLUTION: The radiation detector comprises a scintillator which is arranged and installed on the rear surface side of a first reflecting member, a plurality of first wavelength conversion members which are arranged and installed on the lower side of the scintillator so as to be extended in a first direction, a plurality of second wavelength conversion members which are arranged and installed on the lower side of the plurality of first wavelength conversion members so as to be extended in a second direction, a second reflecting member which is arranged and installed in end parts at least one side of the plurality of first wavelength conversion members, a third reflecting member which is arranged and installed in end parts at least on one side of the plurality of second wavelength conversion members, a first light guide member, a second light guide member and a detection means, by which a position on the scintillator hit by a radiation is detected, on the basis of light guided by the first light guide member and on the basis of light guided by the second light guide member.

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