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1.发明授权公开(公告)号：US10317539B2
公开(公告)日：2019-06-11
申请号：US15952841
申请日：2018-04-13
发明人： Carl Zorn , Andrew Weisenberger , Wenze Xi
摘要： A radiation monitor apparatus and method based on wavelength-dependent optical absorption in fused silica optical fibers. The radiation monitor uses the radiation induced optical changes in fused silica optical fibers as a way to quantify and differentiate the large doses of radiation from high energy photons and neutrons as well as providing a method to extend the sensitivity over a large dynamic range of doses from 103 to beyond 106 rads. The radiation monitor enables dynamic monitoring of highly ionizing radiation environments. The radiation monitor reduces sensitivity saturation at high dose levels, provides increased sensitivity over a large dynamic range of doses, and enables differentiation between high energy photon and neutron contributions or poor signal to noise.
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公开(公告)号：US20210116348A1
公开(公告)日：2021-04-22
申请号：US16657295
申请日：2019-10-18
发明人： Wenze Xi , Rongli Geng , Carl Zorn , Brian J. Kross , Andrew G. Weisenberger , Jack McKisson , John McKisson
IPC分类号： G01N15/02
摘要： A reflective laser-based particle detector for detecting contamination particles moving through a vacuum. Laser light is directed through a vacuum access window in the containment vessel and toward a reflective surface on an inner surface opposite the window. A photonic detector is positioned to monitor reflected laser from the opposite inner surface inside the vessel and is capable of detecting perturbations of the reflected light. The system makes use of optical interferometry techniques embodied as a photonic integrated circuit to detect the particles. The reflective laser-based system can be placed entirely outside the vacuum thereby avoiding the need for breaking the vacuum environment to check for accumulation of contaminant particles.
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公开(公告)号：US09618630B2
公开(公告)日：2017-04-11
申请号：US15008499
申请日：2016-01-28
发明人： Brian J. Kross , Andrew Weisenberger , Carl Zorn , Wenze Xi
IPC分类号： G01T1/20
CPC分类号： G01T1/201 , G01T1/20 , G01T1/2018 , G01T5/08
摘要： A radiation detection system comprising a detection grid of wavelength shifting fibers with a volume of scintillating material at the intersecting points of the fibers. Light detectors, preferably Silicon Photomultipliers, are positioned at the ends of the fibers. The position of radiation is determined from data obtained from the detection grid. The system is easily scalable, customizable, and also suitable for use in soil and underground applications. An alternate embodiment employs a fiber grid sheet or layer which is comprised of multiple fibers secured to one another within the same plane. This embodiment further includes shielding in order to prevent radiation cross-talk within the grid layer.
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公开(公告)号：US11041795B2
公开(公告)日：2021-06-22
申请号：US16657295
申请日：2019-10-18
发明人： Wenze Xi , Rongli Geng , Carl Zorn , Brian J. Kross , Andrew G. Weisenberger , Jack McKisson , John McKisson
IPC分类号： G01N15/02
摘要： A reflective laser-based particle detector for detecting contamination particles moving through a vacuum. Laser light is directed through a vacuum access window in the containment vessel and toward a reflective surface on an inner surface opposite the window. A photonic detector is positioned to monitor reflected laser from the opposite inner surface inside the vessel and is capable of detecting perturbations of the reflected light. The system makes use of optical interferometry techniques embodied as a photonic integrated circuit to detect the particles. The reflective laser-based system can be placed entirely outside the vacuum thereby avoiding the need for breaking the vacuum environment to check for accumulation of contaminant particles.
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5.发明申请公开(公告)号：US20170059719A1
公开(公告)日：2017-03-02
申请号：US15008499
申请日：2016-01-28
发明人： Brian J. Kross , Andrew Weisenberger , Carl Zorn , Wenze Xi
IPC分类号： G01T1/20
CPC分类号： G01T1/201 , G01T1/20 , G01T1/2018 , G01T5/08
摘要： A radiation detection system comprising a detection grid of wavelength shifting fibers with a volume of scintillating material at the intersecting points of the fibers. Light detectors, preferably Silicon Photomultipliers, are positioned at the ends of the fibers. The position of radiation is determined from data obtained from the detection grid. The system is easily scalable, customizable, and also suitable for use in soil and underground applications. An alternate embodiment employs a fiber grid sheet or layer which is comprised of multiple fibers secured to one another within the same plane. This embodiment further includes shielding in order to prevent radiation cross-talk within the grid layer.
摘要翻译： 一种辐射检测系统，包括在纤维的交叉点处具有一定体积的闪烁材料的波长偏移光纤的检测网格。 光检测器，优选硅光电倍增管，位于纤维的端部。 根据从检测网格获得的数据确定辐射位置。 该系统易于扩展，可定制，也适用于土壤和地下应用。 一个替代实施例采用纤维格栅片或层，该纤维网格片或层由在同一平面内彼此固定的多个纤维组成。 该实施例还包括屏蔽以防止网格层内的辐射串扰。
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6.发明申请Radiation Detector including an External-Modulated Electro-optical Coupling Detector Architecture for Nuclear Physics Instrumentation 审中-公开辐射检测器包括用于核物理仪器的外部调制电光耦合检测器结构公开(公告)号：US20150160351A1
公开(公告)日：2015-06-11
申请号：US14101596
申请日：2013-12-10
发明人： Wenze Xi
IPC分类号： G01T1/16
CPC分类号： G01R33/0327 , G01R33/0041 , G01R33/032
摘要： A compact radiation tolerant and magnetic field immune radiation detector including a detector front-end having an electro-optical coupling detector (EOCD) capable of operating within high radiation and strong magnetic fields and a back-end that can be located a substantial distance from the front-end and thus away from the high radiation and strong magnetic fields The back-end of the detector includes a multi-wavelength light source and at least one optical receiver. The EOCD in the front-end simultaneously modulates and multiplexes pulses from light sensors by transferring them to the optical domain and then transmitting them through a single-mode fiber to an optical receiver in the back-end. During the fiber transmission, relative phase, amplitude and timing information among multiplexed signals is maintained. High-index silica planar AWGs and electro-optical conversion modulators minimize the effects of radiation damage and ASICs contribute to the compactness of the front-end.
摘要翻译： 一种紧凑的辐射耐受和磁场免疫辐射检测器，其包括具有能够在高辐射和强磁场内操作的电光耦合检测器（EOCD）的检测器前端，以及可以位于远离 前端，从而远离高辐射强磁场检测器的后端包括多波长光源和至少一个光接收器。 前端的EOCD通过将光传感器传送到光学领域，然后通过单模光纤传输到后端的光接收器，同时调制和复用来自光传感器的脉冲。 在光纤传输期间，保持复用信号之间的相对相位，振幅和定时信息。 高折射率二氧化硅平面AWG和电光转换调制器使辐射损伤的影响最小化，ASIC有助于前端的紧凑性。
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