Radiant energy – Invisible radiant energy responsive electric signalling – Neutron responsive means
Reexamination Certificate
2009-03-17
2011-10-25
Kim, Kiho (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Neutron responsive means
Reexamination Certificate
active
08044367
ABSTRACT:
A scintillator for neutron detection, comprising a metal fluoride crystal containing, as constituent elements, a metal having a valence of 2 or higher, such as calcium, aluminum or yttrium; lithium; and fluorine, the metal fluoride crystal containing 1.1 to 20 atoms per unit volume (atoms
m3) of6Li, having an effective atomic number of 10 to 40, containing a lanthanoid such as cerium, praseodymium or europium, and being represented by, for instance, LiCaAlF6, LiSrAlF6and LiYF4. The scintillator for neutron detection has high sensitivity to neutron rays, and is reduced in a background noise attributed to γ rays.
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Fukuda Kentaro
Ishizu Sumito
Kawaguchi Noriaki
Suyama Toshihisa
Yanagida Takayuki
Birch & Stewart Kolasch & Birch, LLP
Kim Kiho
Tohoku University
Tokuyams Corporation
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