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1. 发明授权

US06657202B2 Multiple-eye type dose distribution measuring method 失效
标题翻译：多眼型剂量分布测量方法
公开(公告)号：US06657202B2
公开(公告)日：2003-12-02
申请号：US09879123
申请日：2001-06-13
申请人： Satoshi Mikami , Hirohide Kobayashi , Mitsuru Kamei
发明人： Satoshi Mikami , Hirohide Kobayashi , Mitsuru Kamei
IPC分类号： G01T100
CPC分类号： G01T1/026 , G01T1/023
摘要： A dose distribution-measuring method capable of grasping a three-dimensional form of an object to be measured or evaluating a three-dimensional dose distribution thereof. The method comprises providing a multiple-eye type radiation meter probe in which at least two directional radiation detectors are arranged so as to be spaced from each other and directed toward a point to be measured; and carrying out dose measurement by directing the radiation meter probe toward an object to be measured from different positions to thereby determine a three-dimensional dose distribution of the object to be measured. Each of the radiation detectors has a structure in which a periphery of the radiation detector main body, except for a detection surface thereof, is surrounded by a radiation shield to reduce the effect of radiation from other than the object to be measured and from Compton scattering.
摘要翻译：一种能够掌握要测量对象的三维形式或评估其三维剂量分布的剂量分布测量方法。该方法包括提供多眼型辐射计探针，其中至少两个方向性辐射检测器被布置成彼此间隔开并指向待测点; 并且通过将辐射计探针从不同位置引向待测量物体进行剂量测量，从而确定待测物体的三维剂量分布。每个辐射检测器具有这样的结构，其中除了其检测表面之外，辐射检测器主体的周边被辐射屏蔽包围以减少来自除被测物体以外的辐射的影响以及康普顿散射。

2. 发明授权

US07375336B2 ZnS(Ag) scintillation detector 失效
标题翻译： ZnS（Ag）闪烁检测器
公开(公告)号：US07375336B2
公开(公告)日：2008-05-20
申请号：US11237852
申请日：2005-09-29
申请人： Ichiro Hasegawa , Kenji Izaki , Hirohide Kobayashi , Kazuo Ino , Nobuyuki Kanazawa
发明人： Ichiro Hasegawa , Kenji Izaki , Hirohide Kobayashi , Kazuo Ino , Nobuyuki Kanazawa
IPC分类号： G01T1/20 , G01T1/208
CPC分类号： G01T1/20
摘要： A ZnS (Ag) scintillation detector comprises a ZnS (Ag) scintillators layer 22 which is excited by incident α-rays and emits a scintillator light, a photomultiplier tube 16 which converts the scintillator light into an electric pulse signal, and a counting rate meter 34 which counts the obtained pulse signal. The scintillator layer has a thickness which is not less than a range of α-rays from α-ray emitting nuclides (natural radioactive nuclides) to be separated, which enables energy absorption of α-rays from the α-ray emitting nuclides to be separated to entirely occur in the scintillator layer, and which enables light shielding of the scintillator light generated in the scintillator layer by the scintillator layer itself to be neglected. A pulse height discrimination circuit 32 is further provided in a preceding stage of the counting rate meter. Thereby, the effect of the natural radioactive nuclides can be reduced and the contamination control can be efficiently and smoothly performed.
摘要翻译： ZnS（Ag）闪烁检测器包括由入射的α射线激发并发射闪烁体光的ZnS（Ag）闪烁体层22，将闪烁体光转换成电脉冲信号的光电倍增管16和计数速率计 34对所获得的脉冲信号进行计数。闪烁体层的厚度不小于要分离的来自α射线放射性核素（天然放射性核素）的α射线的范围，这使得能够吸收来自α射线发射核素的α射线被分离完全发生在闪烁体层中，并且能够忽略闪烁体层本身在闪烁体层中产生的闪烁体光的遮光。在计数率计的前一级还设置有脉冲高度判别电路32。由此，能够降低自然放射性核素的效果，能够有效且顺利地进行污染控制。

3. 发明申请

US20060208197A1 ZnS(Ag) scintillation detector 失效
标题翻译： ZnS（Ag）闪烁检测器
公开(公告)号：US20060208197A1
公开(公告)日：2006-09-21
申请号：US11237852
申请日：2005-09-29
申请人： Ichiro Hasegawa , Kenji Izaki , Hirohide Kobayashi , Kazuo Ino , Nobuyuki Kanazawa
发明人： Ichiro Hasegawa , Kenji Izaki , Hirohide Kobayashi , Kazuo Ino , Nobuyuki Kanazawa
IPC分类号： G01T1/20
CPC分类号： G01T1/20
摘要： A ZnS (Ag) scintillation detector comprises a ZnS (Ag) scintillators layer 22 which is excited by incident α-rays and emits a scintillator light, a photomultiplier tube 16 which converts the scintillator light into an electric pulse signal, and a counting rate meter 34 which counts the obtained pulse signal. The scintillator layer has a thickness which is not less than a range of α-rays from α-ray emitting nuclides (natural radioactive nuclides) to be separated, which enables energy absorption of α-rays from the α-ray emitting nuclides to be separated to entirely occur in the scintillator layer, and which enables light shielding of the scintillator light generated in the scintillator layer by the scintillator layer itself to be neglected. A pulse height discrimination circuit 32 is further provided in a preceding stage of the counting rate meter. Thereby, the effect of the natural radioactive nuclides can be reduced and the contamination control can be efficiently and smoothly performed.
摘要翻译： ZnS（Ag）闪烁检测器包括由入射的α射线激发并发射闪烁体光的ZnS（Ag）闪烁体层22，将闪烁体光转换成电脉冲信号的光电倍增管16和计数速率计 34对所获得的脉冲信号进行计数。闪烁体层的厚度不小于要分离的来自α射线放射性核素（天然放射性核素）的α射线的范围，这使得能够吸收来自α射线发射核素的α射线被分离完全发生在闪烁体层中，并且能够忽略闪烁体层本身在闪烁体层中产生的闪烁体光的遮光。在计数率计的前一级还设置有脉冲高度判别电路32。由此，能够降低自然放射性核素的效果，能够有效且顺利地进行污染控制。

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