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    • 3. 发明申请
    • Nuclear radiation detection system
    • 核辐射检测系统
    • US20080179534A1
    • 2008-07-31
    • US11699335
    • 2007-01-30
    • Narsingh Bahadur SinghAaron A. PesetskiAndre BerghmansBrian P. WagnerDavid KahlerDavid J. KnutesonDarren Thomson
    • Narsingh Bahadur SinghAaron A. PesetskiAndre BerghmansBrian P. WagnerDavid KahlerDavid J. KnutesonDarren Thomson
    • G01J1/42
    • G01J1/429G01J1/0488
    • 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.
    • 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。
    • 7. 发明申请
    • Novel narrowband crystal UV filters
    • 新型窄带水晶UV滤光片
    • US20080096097A1
    • 2008-04-24
    • US11580834
    • 2006-10-16
    • Narsingh Bahadur Singh
    • Narsingh Bahadur Singh
    • H01M10/34
    • G02B5/208C01G53/006C01P2002/52C01P2002/84C01P2006/80C03C4/085
    • Crystals having a narrowband transmission window in the UV range and methods for producing such crystals are disclosed. The method comprises the steps of preparing a saturated nutrient solution of a nickel compound and a dopant salt; and incubating the nutrient solution under conditions suitable for crystal growth. The nickel compound is nickel silicon fluoride, nickel fluoroborate, or potassium nickel sulfate. The dopant salt is a salt of cobalt, calcium, barium, strontium, lead, copper, germanium, praseodymium, neodymium, zinc, lithium, potassium, sodium, rubidium, or cesium. The doped nickel compounds crystals have a narrow transmission window in the UV range and can be used as filters for optical sensors in applications such as the passive missile approach warning systems.
    • 公开了在UV范围内具有窄带透射窗的晶体和用于制造这种晶体的方法。 该方法包括以下步骤:制备镍化合物和掺杂盐的饱和营养溶液; 并在适合于晶体生长的条件下孵育营养液。 镍化合物是氟化硅镍,氟硼酸镍或硫酸镍镍。 掺杂盐是钴,钙,钡,锶,铅,铜,锗,镨,钕,锌,锂,钾,钠,铷或铯的盐。 掺杂的镍化合物晶体在UV范围内具有窄的透射窗,并且可以用作诸如被动导弹接近警报系统的应用中的光学传感器的滤光器。
    • 10. 发明授权
    • Nuclear radiation detection system
    • 核辐射检测系统
    • US07525099B2
    • 2009-04-28
    • US11699335
    • 2007-01-30
    • Narsingh Bahadur SinghAaron A. PesetskiAndre BerghmansBrian P. WagnerDavid KahlerDavid J. KnutesonDarren Thomson
    • Narsingh Bahadur SinghAaron A. PesetskiAndre BerghmansBrian P. WagnerDavid KahlerDavid J. KnutesonDarren Thomson
    • G01J1/42
    • G01J1/429G01J1/0488
    • 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.
    • 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。