公开(公告)号：US07202478B2

公开(公告)日：2007-04-10

申请号：US11219028

申请日：2005-09-02

申请人： David Ramsden ,  Ling-Jian Meng ,  Oleg Ivanov ,  Sergei Ignatov

发明人： David Ramsden ,  Ling-Jian Meng ,  Oleg Ivanov ,  Sergei Ignatov

IPC分类号： G01T1/20

CPC分类号： G01T1/20

摘要： A scintillation spectrometer provides improved resolution by ensuring that photons generated by scintillation events occurring in different locations within the scintillation material generate similar light profiles on the photo-detector, thereby making the output signal less sensitive to the initial interaction site and enabling more effective de-convolution of raw data. This is achieved in different ways, such as by: limiting the exit window of the scintillation crystal, introducing a spacer between the scintillation crystal and the detector window, or providing a crystal that is longer than necessary to stop gamma rays.

摘要翻译： 闪烁光谱仪通过确保在闪烁材料内的不同位置发生的闪烁事件产生的光子在光检测器上产生相似的光谱，从而使得输出信号对初始相互作用位点不太敏感， 原始数据卷积。 这以不同的方式实现，例如：限制闪烁晶体的出射窗口，在闪烁晶体和检测器窗口之间引入间隔物，或者提供比停止γ射线所需时间更长的晶体。

公开(公告)号：US20060027754A1

公开(公告)日：2006-02-09

申请号：US11219028

申请日：2005-09-02

申请人： David Ramsden ,  Ling-Jian Meng ,  Oleg Ivanov ,  Sergei Ignatov

发明人： David Ramsden ,  Ling-Jian Meng ,  Oleg Ivanov ,  Sergei Ignatov

IPC分类号： G01T1/20

CPC分类号： G01T1/20

摘要： A scintillation spectrometer provides improved resolution by ensuring that photons generated by scintillation events occurring in different locations within the scintillation material generate similar light profiles on the photo-detector, thereby making the output signal less sensitive to the initial interaction site and enabling more effective de-convolution of raw data. This is achieved in different ways, such as by: limiting the exit window of the scintillation crystal, introducing a spacer between the scintillation crystal and the detector window, or providing a crystal that is longer than necessary to stop gamma rays.

摘要翻译： 闪烁光谱仪通过确保在闪烁材料内的不同位置发生的闪烁事件产生的光子在光检测器上产生相似的光谱，从而使得输出信号对初始相互作用位点不太敏感， 原始数据卷积。 这以不同的方式实现，例如：限制闪烁晶体的出射窗口，在闪烁晶体和检测器窗口之间引入间隔物，或者提供比停止γ射线所需时间更长的晶体。

公开(公告)号：US06940071B2

公开(公告)日：2005-09-06

申请号：US10398973

申请日：2001-10-11

申请人： David Ramsden ,  Ling-Jian Meng ,  Oleg Ivanov ,  Sergei Ignatov

发明人： David Ramsden ,  Ling-Jian Meng ,  Oleg Ivanov ,  Sergei Ignatov

IPC分类号： G01T1/20 ,  G01T1/24 ,  G01T1/36

CPC分类号： G01T1/20

摘要： Different geometries of scintillation spectrometers are disclosed which provide improved resolution over prior art scintillation spectrometers. By ensuring that photons generated by scintillation events occurring in different locations within the scintillation material generate similar light profiles on the photo-detector, the output signal is made less sensitive to the initial interaction site. This can be achieved in a number of ways, such as: by limiting the exit window of the scintillation crystal to a smaller detector, by introducing an optical spacer (94) between the scintillation crystal and detector (99), and/or by making the crystal longer than necessary to stop the gamma rays. A principal advantage of these new geometries is that deconvolution of the raw-data is more effective, thus improving resolution.

摘要翻译： 公开了闪烁光谱仪的不同几何形状，其提供了比现有技术闪烁光谱仪改进的分辨率。 通过确保发生在闪烁材料内的不同位置的闪烁事件产生的光子在光检测器上产生类似的光谱，使得输出信号对初始相互作用位点不太敏感。 这可以通过在闪烁晶体和检测器（99）之间引入光学间隔物（94）和/或通过将闪烁晶体和检测器（99）之间引入光学间隔物（94）来限制闪烁晶体的出射窗口到较小的检测器来实现， 晶体长于停止伽马射线所需的时间。 这些新几何的主要优点是原始数据的去卷积更有效，从而提高了分辨率。

公开(公告)号：US08017917B2

公开(公告)日：2011-09-13

申请号：US12259139

申请日：2008-10-27

申请人： Ling-Jian Meng

发明人： Ling-Jian Meng

IPC分类号： G01T1/20

CPC分类号： G01T1/249 ,  G01T1/2018

摘要： A system that incorporates teachings of the present disclosure may include, for example, an ionizing radiation sensor having a first scintillator for generating photons from incoming ionizing radiation, an imaging intensifier for amplifying the photons, and an electron-multiplying charge-coupled device (EMCCD) coupled to the imaging intensifier for sensing the amplified photons generated by the imaging intensifier. Additional embodiments are disclosed.

摘要翻译： 结合本公开的教导的系统可以包括例如具有用于从入射电离辐射产生光子的第一闪烁体的电离辐射传感器，用于放大光子的成像增强器和电子倍增电荷耦合器件（EMCCD ）耦合到成像增强器，用于感测由成像增强器产生的放大的光子。 公开了另外的实施例。