公开(公告)号：US07525099B2

公开(公告)日：2009-04-28

申请号：US11699335

申请日：2007-01-30

申请人： Narsingh Bahadur Singh ,  Aaron A. Pesetski ,  Andre Berghmans ,  Brian P. Wagner ,  David Kahler ,  David J. Knuteson ,  Darren Thomson

发明人： Narsingh Bahadur Singh ,  Aaron A. Pesetski ,  Andre Berghmans ,  Brian P. Wagner ,  David Kahler ,  David J. Knuteson ,  Darren Thomson

IPC分类号： G01J1/42

CPC分类号： G01J1/429 ,  G01J1/0488

摘要： A nuclear radiation detection system using narrowband UV crystal filters is disclosed. Since the photons produced during the decay of β- and γ-radiation can be detected in the spectral range of about 200-350 nm (the ultraviolet range), UV filter based photo sensors are utilized for detection. The nuclear radiation detection system comprises an optical assembly capable of focusing on a source of radiation, a UV filter assembly having a narrowband UV crystal filter and positioned to receive light transmitted through the optical assembly, and a light detector positioned to receive light transmitted through the UV filter assembly. The narrowband UV crystal filter is fabricated from crystals selected from the group consisting of nickel fluorosilicate, nickel fluoroborate, and potassium nickel sulfate. The nickel fluorosilicate, nickel fluoroborate, and potassium nickel sulfate may be doped to achieve even narrower band filter. The radiation detection system can be used to monitor contamination in a nuclear plant or a nuclear waste dump site. It may also be used for surveillance of contamination in case of a nuclear accident.

摘要翻译： 公开了使用窄带UV晶体滤波器的核辐射检测系统。 由于可以在大约200-350nm（紫外范围）的光谱范围内检测在β辐射和γ射线衰变期间产生的光子，所以使用基于UV滤光片的光电传感器进行检测。 核辐射检测系统包括能够聚焦在辐射源上的光学组件，具有窄带UV晶体滤波器并被定位成接收透过光学组件的光的UV滤光器组件，以及定位成接收透过光学组件的光的光检测器 紫外线过滤器总成。 窄带UV晶体滤波器由选自氟硅酸镍，氟硼酸镍和硫酸镍镍的晶体制成。 可以掺杂氟硅酸镍，氟硼酸镍和硫酸镍钾以实现更窄的带过滤器。 辐射检测系统可用于监测核电厂或核废料堆场的污染。 也可用于在发生核事故时监视污染。

公开(公告)号：US07327896B1

公开(公告)日：2008-02-05

申请号：US10940638

申请日：2004-09-15

申请人： Narsingh B. Singh ,  Tracy-Ann Waite ,  David Kahler ,  Andre Berghmans

发明人： Narsingh B. Singh ,  Tracy-Ann Waite ,  David Kahler ,  Andre Berghmans

IPC分类号： G06K9/40

CPC分类号： G01J3/28 ,  G01J3/00 ,  G01J3/1256 ,  G01J2003/1286 ,  G01N2021/1793

摘要： A hyperspectral imaging system is tested in the lab to allow a determination of its response to the emission from a simulated target, of certain wavelengths of radiation which the imaging system will be using during target determination. A broadband IR wavelength generator is used to generate a multiplicity of wavelengths representing the target and an emissions simulator is used to generate wavelengths representing target emission of hot gases. An AOTF is used to delete one or more target wavelengths, and to add one or more emission wavelengths, from and to the transmission path to the imaging system.

摘要翻译： 在实验室中测试高光谱成像系统，以便确定其对来自模拟目标的辐射的响应，该目标是在目标确定期间成像系统将使用的某些波长的辐射。 使用宽带IR波长发生器来产生表示目标的多个波长，并且使用发射模拟器来产生表示热气体的目标发射的波长。 AOTF用于从成像系统中删除一个或多个目标波长，并向传输路径添加一个或多个发射波长。

公开(公告)号：US20060081856A1

公开(公告)日：2006-04-20

申请号：US10965840

申请日：2004-10-18

申请人： Narsingh Singh ,  Andre Berghmans ,  Tracy Waite ,  Michael Aumer ,  Hong Zhang ,  Darren Thomson ,  David Kahler ,  Abigail Kirschenbaum

发明人： Narsingh Singh ,  Andre Berghmans ,  Tracy Waite ,  Michael Aumer ,  Hong Zhang ,  Darren Thomson ,  David Kahler ,  Abigail Kirschenbaum

IPC分类号： H01L31/0312

CPC分类号： C30B23/00 ,  C30B29/36 ,  H01L21/02378 ,  H01L21/02529 ,  H01L21/02532 ,  H01L21/02645

摘要： A wide bandgap semiconductor material comprised of Silicon carbide containing a predetermined portion of germanium.

摘要翻译： 由含有预定部分锗的碳化硅构成的宽带隙半导体材料。