公开(公告)号：US09678223B2

公开(公告)日：2017-06-13

申请号：US14239366

申请日：2012-08-17

申请人： Daisuke Totsuka ,  Susumu Matsumoto ,  Akira Yoshikawa ,  Takayuki Yanagida

发明人： Daisuke Totsuka ,  Susumu Matsumoto ,  Akira Yoshikawa ,  Takayuki Yanagida

IPC分类号： C09K11/74 ,  G01T1/202 ,  C30B29/12 ,  C09K11/02 ,  G21K4/00 ,  C30B11/00 ,  C30B15/00

CPC分类号： G01T1/2023 ,  C09K11/025 ,  C09K11/7435 ,  C30B11/00 ,  C30B15/00 ,  C30B29/12 ,  G21K4/00 ,  G21K2004/06

摘要： An afterglow property of cesium iodide:thallium (CsI:Tl), in which CsI is a host material and doped with thallium, is improved. It is possible to improve the afterglow property of a scintillator by doping a crystal material including CsI (cesium iodide), as a host material, and thallium (Tl), as a luminescent center, with bismuth (Bi).

公开(公告)号：US09068114B2

公开(公告)日：2015-06-30

申请号：US13822744

申请日：2011-11-01

申请人： Kentaro Fukuda ,  Noriaki Kawaguchi ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota ,  Yutaka Fujimoto

发明人： Kentaro Fukuda ,  Noriaki Kawaguchi ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota ,  Yutaka Fujimoto

IPC分类号： C09K11/61 ,  C09K11/77 ,  G01T3/06 ,  G21K4/00 ,  C30B21/00 ,  C30B29/12

CPC分类号： C09K11/616 ,  C09K11/772 ,  C30B21/00 ,  C30B29/12 ,  G01T3/06 ,  G21K4/00 ,  G21K2004/06

摘要： [Problems to be Solved] A neutron scintillator excellent in detection efficiency for neutrons, an S/N ratio, and n/γ discrimination ability, and a eutectic preferred for the neutron scintillator are provided.[Means to Solve the Problems] A metal fluoride eutectic, in which a lithium fluoride crystal phase and a crystal phase represented by the chemical formula Ca1-xSrxF2 (where x denotes a number greater than 0, but not larger than 1), such as SrF2 or Ca0.5Sr0.5F2, are present in a phase-separated state; a neutron scintillator comprising the eutectic; and a neutron imaging device comprising a combination of the neutron scintillator and a position-sensitive photomultiplier tube.

摘要翻译： [待解决的问题]提供了对中子的检测效率优异的中子闪烁体，S / N比和n /γ判别能力以及中子闪烁体优选的共晶体。 [解决问题的手段]以化学式Ca1-xSrxF2（其中x表示大于0但不大于1的数）表示的氟化锂结晶相和结晶相的金属氟化物共晶，例如 SrF2或Ca0.5Sr0.5F2以相分离状态存在; 包含共晶的中子闪烁体; 以及包括中子闪烁体和位置敏感光电倍增管的组合的中子成像装置。

公开(公告)号：US20140203211A1

公开(公告)日：2014-07-24

申请号：US14239366

申请日：2012-08-17

申请人： Daisuke Totsuka ,  Susumu Matsumoto ,  Akira Yoshikawa ,  Takayuki Yanagida

发明人： Daisuke Totsuka ,  Susumu Matsumoto ,  Akira Yoshikawa ,  Takayuki Yanagida

IPC分类号： G01T1/202 ,  C09K11/02

CPC分类号： G01T1/2023 ,  C09K11/025 ,  C09K11/7435 ,  C30B11/00 ,  C30B15/00 ,  C30B29/12 ,  G21K4/00 ,  G21K2004/06

摘要： An afterglow property of cesium iodide: thallium (CsI:Tl), in which CsI is a host material and doped with thallium, is improved. It is possible to improve the afterglow property of a scintillator by doping a crystal material including CsI (cesium iodide), as a host material, and thallium (Tl), as a luminescent center, with bismuth (Bi).

摘要翻译： 铯碘化物的余辉特性：铯（CsI：T1），其中CsI是主体材料并掺杂有铊，得到改善。 通过用铋（Bi）作为发光中心掺杂包括作为主体材料的CsI（碘化铯）和铊（T1））的晶体材料，可以改善闪烁体的余辉性能。

公开(公告)号：US08642972B2

公开(公告)日：2014-02-04

申请号：US13695088

申请日：2011-04-26

申请人： Kentaro Fukuda ,  Sumito Ishizu ,  Noriaki Kawaguchi ,  Toshihisa Suyama ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota

发明人： Kentaro Fukuda ,  Sumito Ishizu ,  Noriaki Kawaguchi ,  Toshihisa Suyama ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota

IPC分类号： G01T3/06

CPC分类号： G01T3/06 ,  C09K11/7733 ,  G21K4/00

摘要： [Problems to be Solved] A neutron scintillator excellent in neutron detection efficiency and n/γ discrimination ability, and a neutron detector using the neutron scintillator are provided.[Means to Solve the Problems] A neutron scintillator comprising a eutectic body composed of laminar lithium fluoride crystals and laminar calcium fluoride crystals alternately arranged in layers, the thickness of the lithium fluoride crystal layers in the eutectic body being 0.1 to 5 μm; or a neutron scintillator comprising a eutectic body composed of laminar lithium fluoride crystals and laminar calcium fluoride crystals alternately arranged in layers, the calcium fluoride crystal layers in the eutectic body being linearly continuous in at least one direction; and a neutron detector basically constructed from any of the neutron scintillators and a photodetector.

摘要翻译： [待解决的问题]提供了中子检测效率和n /γ辨别能力优异的中子闪烁体和使用中子闪烁体的中子检测器。 [解决问题的手段]包含由层状氟化锂晶体和层状氟化钙晶体构成的共晶体的中子闪烁体，层状交替排列，共晶体中的氟化锂晶体层的厚度为0.1〜5μm; 或包含交替排列成层状氟化锂晶体和层状氟化钙晶体的共晶体的中子闪烁体，所述共晶体中的氟化钙晶体层在至少一个方向上呈线性连续; 以及基本由中子闪烁体和光电检测器构成的中子探测器。

公开(公告)号：US20130327946A1

公开(公告)日：2013-12-12

申请号：US14001181

申请日：2012-02-24

申请人： Noriaki Kawaguchi ,  Kentaro Fukuda ,  Toshihisa Suyama ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota ,  Yutaka Fujimoto

发明人： Noriaki Kawaguchi ,  Kentaro Fukuda ,  Toshihisa Suyama ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota ,  Yutaka Fujimoto

IPC分类号： G01T3/06

CPC分类号： G01T3/06 ,  C09K11/613 ,  C09K11/7732 ,  C30B15/00 ,  C30B29/12 ,  G21K4/00

摘要： A novel scintillator for neutron detection is capable of increasing the probability of inducing a nuclear reaction using epithermal neutrons having higher energy than thermal neutrons as a result of increasing thickness in the direction of incidence of neutron radiation. A scintillator for neutron detection includes a colquiriite-type fluoride single crystal containing europium, containing 0.0025 mol % or more and less than 0.05 mol % europium, containing 0.80 atom/nm3 or more 6Li, and being shaped such that the thickness in the thickest part exceeds 1 mm.

摘要翻译： 用于中子检测的新颖的闪烁体能够增加使用具有比热中子更高的能量的超热中子引起核反应的可能性，这是由于中子辐射入射方向上的厚度增加的结果。 用于中子检测的闪烁体包括含有0.0025摩尔％以上且小于0.05摩尔％的含有0.80原子/ nm 3以上6Li的铕的含有铕的扁桃体型氟化物单晶，并且成形为使得最厚部分 超过1毫米。

公开(公告)号：US20130168561A1

公开(公告)日：2013-07-04

申请号：US13822744

申请日：2011-11-01

申请人： Kentaro Fukuda ,  Noriaki Kawaguchi ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota ,  Yutaka Fujimoto

发明人： Kentaro Fukuda ,  Noriaki Kawaguchi ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota ,  Yutaka Fujimoto

IPC分类号： C09K11/61 ,  G01T3/06

CPC分类号： C09K11/616 ,  C09K11/772 ,  C30B21/00 ,  C30B29/12 ,  G01T3/06 ,  G21K4/00 ,  G21K2004/06

摘要： [Problems to be Solved] A neutron scintillator excellent in detection efficiency for neutrons, an S/N ratio, and n/γ discrimination ability, and a eutectic preferred for the neutron scintillator are provided.[Means to Solve the Problems] A metal fluoride eutectic, in which a lithium fluoride crystal phase and a crystal phase represented by the chemical formula Ca1-xSrxF2 (where x denotes a number greater than 0, but not larger than 1), such as SrF2 or Ca0.5Sr0.5F2, are present in a phase-separated state; a neutron scintillator comprising the eutectic; and a neutron imaging device comprising a combination of the neutron scintillator and a position-sensitive photomultiplier tube.

摘要翻译： [待解决的问题]提供了对于中子的检测效率优异的中子闪烁体，S / N比和n /γ辨别能力以及中子闪烁体优选的共晶体。 [解决问题的方法]一种金属氟化物共晶体，其中氟化锂结晶相和由化学式Ca1-xSrxF2表示的结晶相（其中x表示大于0但不大于1的数），例如 SrF2或Ca0.5Sr0.5F2以相分离状态存在; 包含共晶的中子闪烁体; 以及包括中子闪烁体和位置敏感光电倍增管的组合的中子成像装置。

公开(公告)号：US20130112885A1

公开(公告)日：2013-05-09

申请号：US13809493

申请日：2011-07-20

申请人： Hiromitsu Takahashi ,  Mitsuo Yonetani ,  Masayuki Matsuoka ,  Yasushi Fukazawa ,  Noriaki Kawaguchi ,  Kentaro Fukuda ,  Toshihisa Suyama ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota ,  Yutaka Fujimoto

发明人： Hiromitsu Takahashi ,  Mitsuo Yonetani ,  Masayuki Matsuoka ,  Yasushi Fukazawa ,  Noriaki Kawaguchi ,  Kentaro Fukuda ,  Toshihisa Suyama ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota ,  Yutaka Fujimoto

IPC分类号： G01T3/06

CPC分类号： C09K11/7734 ,  C30B15/00 ,  C30B29/12 ,  G01T1/2008 ,  G01T3/06 ,  G21K4/00

摘要： [Problems to be Solved] A phoswich radiation detector, which can easily discriminate between detection signals on gamma rays and thermal neutrons, and which can selectively acquire signals on thermal neutrons, is provided.[Means to Solve the Problems] In a phoswich radiation detector having two scintillators and discriminating between thermal neutrons and gamma rays, the detector comprises a scintillator for detecting thermal neutrons, such as LiCaAlF6:Eu, which has a light yield of more than 1500 photons/neutron, and a scintillator for detecting gamma rays, which has a permeable end on a shorter wavelength than the light emission wavelength of the thermal neutron scintillator. The scintillator for detecting gamma rays is characterized by being either an organic solid scintillator, such as a plastic scintillator, which does not contain a total amount of 10 mol % or more of elements selected from 6Li, 10B and Gd, or an inorganic single crystal scintillator, such as lithium glass (containing 6Li and Ce) or BGO, which has an effective atomic number Zeff of 30 or larger and which does not contain a total amount of 10 mol % or more of elements selected from 6Li, 10B and Gd.

摘要翻译： [待解决的问题]提供了一种可以容易地区分伽马射线和热中子上的检测信号并且可以选择性地获取热中子信号的棱镜辐射探测器。 [解决问题的手段]在具有两个闪烁体并且区分热中子和γ射线的双射线辐射检测器中，检测器包括用于检测热中子的闪烁体，例如LiCaAlF 6：Eu，其具有大于1500个光子的光产量 /中子，以及用于检测伽马射线的闪烁体，其具有比热中子闪烁体的发光波长更短波长的可渗透端。 用于检测γ射线的闪烁体的特征在于：不含总量为10mol％以上的选自6Li，10B和Gd的元素的有机固体闪烁体，例如塑料闪烁体，或无机单晶 诸如具有30或更大的有效原子数Zeff的锂玻璃（含6Li和Ce）或BGO的闪烁体，其不含有选自6Li，10B和Gd的元素的总量的10mol％以上。

公开(公告)号：US08405034B2

公开(公告)日：2013-03-26

申请号：US13266189

申请日：2010-04-27

申请人： Hiroshi Azechi ,  Nobuhiko Sarukura ,  Yasunobu Arikawa ,  Mitsuo Nakai ,  Hirofumi Kan ,  Takahiro Murata ,  Toshihisa Suyama ,  Shigeru Fujino ,  Yoshiyuki Usuki ,  Hideki Yoshida ,  Akira Yoshikawa

发明人： Hiroshi Azechi ,  Nobuhiko Sarukura ,  Yasunobu Arikawa ,  Mitsuo Nakai ,  Hirofumi Kan ,  Takahiro Murata ,  Toshihisa Suyama ,  Shigeru Fujino ,  Yoshiyuki Usuki ,  Hideki Yoshida ,  Akira Yoshikawa

IPC分类号： G01T3/06

CPC分类号： G01T3/06 ,  C03C3/247 ,  C03C4/12 ,  C09K11/7711

摘要： A neutron measurement apparatus 1A includes a neutron detection unit 10, a photodetection unit 20 that detects scintillation light emitted from the neutron detection unit 10, a light guide optical system 15 that guides the scintillation light from the neutron detection unit 10 to the photodetection unit 20, and a shielding member 30 which is located between the neutron detection unit 10 and the photodetection unit 20 for shielding radiation passing in a direction toward the photodetection unit 20. Further, a scintillator formed of a lithium glass material in which PrF3 is doped to a glass material 20Al(PO3)3-80LiF is used as a neutron detection scintillator composing the neutron detection unit 10. Thereby, the neutron detection scintillator and the neutron measurement apparatus which are capable of suitably performing neutron measurement such as measurement of scattered neutrons from an implosion plasma can be realized.

摘要翻译： 中子测量装置1A包括中子检测单元10，检测从中子检测单元10发射的闪烁光的光电检测单元20，将来自中子检测单元10的闪烁光引导到光电检测单元20的导光光学系统15 以及位于中子检测单元10和光电检测单元20之间的屏蔽构件30，用于屏蔽沿着朝向光电检测单元20的方向通过的辐射。此外，将由PrF 3掺杂到锂阳极的锂玻璃材料形成的闪烁体 玻璃材料20Al（PO3）3-80LiF用作构成中子检测单元10的中子检测闪烁体。由此，能够适当地进行中子测量的中子检测闪烁体和中子测量装置，例如从 可以实现内爆等离子体。

公开(公告)号：US20130043402A1

公开(公告)日：2013-02-21

申请号：US13695088

申请日：2011-04-26

申请人： Kentaro Fukuda ,  Sumito Ishizu ,  Noriaki Kawaguchi ,  Toshihisa Suyama ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota

发明人： Kentaro Fukuda ,  Sumito Ishizu ,  Noriaki Kawaguchi ,  Toshihisa Suyama ,  Akira Yoshikawa ,  Takayuki Yanagida ,  Yui Yokota

IPC分类号： G01T3/06

CPC分类号： G01T3/06 ,  C09K11/7733 ,  G21K4/00

摘要： [Problems to be Solved] A neutron scintillator excellent in neutron detection efficiency and n/γ discrimination ability, and a neutron detector using the neutron scintillator are provided.[Means to Solve the Problems] A neutron scintillator comprising a eutectic body composed of laminar lithium fluoride crystals and laminar calcium fluoride crystals alternately arranged in layers, the thickness of the lithium fluoride crystal layers in the eutectic body being 0.1 to 5 μm; or a neutron scintillator comprising a eutectic body composed of laminar lithium fluoride crystals and laminar calcium fluoride crystals alternately arranged in layers, the calcium fluoride crystal layers in the eutectic body being linearly continuous in at least one direction; and a neutron detector basically constructed from any of the neutron scintillators and a photodetector.[Selected Drawing] None

摘要翻译： [待解决的问题]提供了中子检测效率和n /γ辨别能力优异的中子闪烁体和使用中子闪烁体的中子检测器。 [解决问题的手段]包含由层状氟化锂晶体和层状氟化钙晶体构成的共晶体的中子闪烁体，层状交替排列，共晶体中的氟化锂晶体层的厚度为0.1〜5μm; 或包含交替排列成层状氟化锂晶体和层状氟化钙晶体的共晶体的中子闪烁体，所述共晶体中的氟化钙晶体层在至少一个方向上呈线性连续; 以及基本由中子闪烁体和光电检测器构成的中子探测器。 [已选图]无

公开(公告)号：US20120091351A1

公开(公告)日：2012-04-19

申请号：US13266189

申请日：2010-04-27

申请人： Hiroshi Azechi ,  Nobuhiko Sarukura ,  Yasunobu Arikawa ,  Mitsuo Nakai ,  Hirofumi Kan ,  Takahiro Murata ,  Toshihisa Suyama ,  Shigeru Fujino ,  Yoshiyuki Usuki ,  Hideki Yoshida ,  Akira Yoshikawa

发明人： Hiroshi Azechi ,  Nobuhiko Sarukura ,  Yasunobu Arikawa ,  Mitsuo Nakai ,  Hirofumi Kan ,  Takahiro Murata ,  Toshihisa Suyama ,  Shigeru Fujino ,  Yoshiyuki Usuki ,  Hideki Yoshida ,  Akira Yoshikawa

IPC分类号： G01T3/06 ,  C09K11/85

CPC分类号： G01T3/06 ,  C03C3/247 ,  C03C4/12 ,  C09K11/7711

摘要： A neutron measurement apparatus 1A includes a neutron detection unit 10, a photodetection unit 20 that detects scintillation light emitted from the neutron detection unit 10, a light guide optical system 15 that guides the scintillation light from the neutron detection unit 10 to the photodetection unit 20, and a shielding member 30 which is located between the neutron detection unit 10 and the photodetection unit 20 for shielding radiation passing in a direction toward the photodetection unit 20. Further, a scintillator formed of a lithium glass material in which PrF3 is doped to a glass material 20Al(PO3)3-80LiF is used as a neutron detection scintillator composing the neutron detection unit 10. Thereby, the neutron detection scintillator and the neutron measurement apparatus which are capable of suitably performing neutron measurement such as measurement of scattered neutrons from an implosion plasma can be realized.

摘要翻译： 中子测量装置1A包括中子检测单元10，检测从中子检测单元10发射的闪烁光的光电检测单元20，将来自中子检测单元10的闪烁光引导到光电检测单元20的导光光学系统15 以及位于中子检测单元10和光电检测单元20之间的屏蔽构件30，用于屏蔽沿着朝向光电检测单元20的方向通过的辐射。此外，将由PrF 3掺杂到锂阳极的锂玻璃材料形成的闪烁体 玻璃材料20Al（PO3）3-80LiF用作构成中子检测单元10的中子检测闪烁体。由此，能够适当地进行中子测量的中子检测闪烁体和中子测量装置，例如从 可以实现内爆等离子体。