Method and apparatus for background correction in photoluminescent
analysis
    1.
    发明授权
    Method and apparatus for background correction in photoluminescent analysis 失效
    光致发光分析中背景校正的方法和装置

    公开(公告)号:US4150295A

    公开(公告)日:1979-04-17

    申请号:US867004

    申请日:1978-01-05

    申请人: Irwin Wieder

    发明人: Irwin Wieder

    IPC分类号: G01N21/64 F21K2/02

    摘要: A method and apparatus for background correction in photoluminescent analysis of a selected photoluminescent target substance with a relatively narrow emission spectrum in the presence of ambient substances with a combined photoluminescent spectrum which is relatively broad. The photoluminescence of the target substance is sampled and measured in a narrow wavelength band corresponding to the principal emission spectrum of the target. A second sample of photoluminescence is measured in one or more wavelength bands adjacent to the first wavelength band, but excluding substantially all of the photoluminescence of the target substance, and transmitting only ambient photoluminescence. The second measurement is converted into an amount which would occur if ambient photoluminescence had been sampled in the first wavelength band and then the converted amount is subtracted from the first measured amount, thereby correcting the first measured amount for photoluminescence derived from ambient substances.

    摘要翻译: 在具有相对宽的组合光致发光光谱的环境物质存在下,具有较窄发射光谱的所选择的光致发光靶物质的光致发光分析中的背景校正方法和装置。 在对应于靶的主要发射光谱的窄波长带中对目标物质的光致发光进行采样和测量。 在与第一波长带相邻的一个或多个波长带中测量第二个光致发光样品,但不包括目标物质的基本上所有的光致发光,仅透射环境光致发光。 第二测量值被转换为在第一波长带中对环境光致发光进行采样,然后从第一测量量中减去转换量,从而校正来自环境物质的光致发光的第一测量量。

    Portable spotter for fluorescent contaminants on surfaces
    3.
    发明授权
    Portable spotter for fluorescent contaminants on surfaces 失效
    表面上荧光污染物的便携式检测仪

    公开(公告)号:US4200801A

    公开(公告)日:1980-04-29

    申请号:US24803

    申请日:1979-03-28

    IPC分类号: G01N21/64 F21K2/02

    摘要: A portable fluorescence-based spotter for polynuclear aromatic hydrocarbon contamination on personnel and work area surfaces under ambient lighting conditions is provided. This instrument employs beam modulation and phase sensitive detection for discriminating between fluorescence from organic materials from reflected background light and inorganic fluorescent material. The device uses excitation and emission filters to provide differentiation between classes of aromatic organic compounds. Certain inorganic fluorescent materials, including heavy metal compounds, may also be distinguished from the organic compounds, despite both having similar optical properties.

    摘要翻译: 提供了一种便携式荧光检测仪,用于在环境照明条件下对人员和工作区域表面进行多核芳烃污染。 该仪器采用光束调制和相位敏感检测,用于区分来自反射背景光的有机材料的荧光和无机荧光材料。 该装置使用激发和发射滤光片来提供芳族有机化合物的分类。 某些无机荧光材料,包括重金属化合物,也可以与有机化合物区别,尽管它们具有相似的光学性质。

    Vertical reflection type fluorescence microphotometer
    5.
    发明授权
    Vertical reflection type fluorescence microphotometer 失效
    垂直反射型荧光显微镜

    公开(公告)号:US3950649A

    公开(公告)日:1976-04-13

    申请号:US546185

    申请日:1975-01-31

    申请人: Ken Yonekubo

    发明人: Ken Yonekubo

    IPC分类号: G01N21/64 G02B21/16 F21K2/02

    CPC分类号: G02B21/16 G01N21/645

    摘要: Vertical reflection type fluorescence microphotometer in which a specimen under examination is irradiated with an ultraviolet ray directed onto the upper surface of the specimen and light reflected back from the specimen is measured by means of a photoelectric tube. The fluorescence microphotometer comprises a light source for emitting an exciting light, a lens for forming an image of the light source at a position where an aperture diaphragm is located, a relay lens for forming an image of the aperture diaphragm through a dichroic mirror in a focal point located at the image side of an objective lens, and a pinhole arranged between the relay lens and the dichroic mirror. The objective lens can form an image of the pinhole on the upper surface of the specimen as well as an image of the fluorescence emitting position of the specimen through the dichroic mirror at a position where a diaphragm is located. The fluorescence transmitted through the diaphragm is received by the photoelectric tube.

    Radio luminescent sighting arrangement
    6.
    发明授权
    Radio luminescent sighting arrangement 失效
    无线发光信号装置

    公开(公告)号:US3784817A

    公开(公告)日:1974-01-08

    申请号:US3784817D

    申请日:1971-05-11

    IPC分类号: F41G1/32 F21K2/02

    CPC分类号: F41G1/32

    摘要: An illuminating arrangement is disclosed which, in one particular embodiment, includes a pair of optically-alignable ''''sight markings'''', the markings being illuminated and defined, at least in part, by a ''''radio-luminescent'''' segment, especially suited for a dimly-lit field of view, these segments including a phosphorescent material and a ''''matched'''' radio-isotope adapted to induce prescribed phosphorescence.

    摘要翻译: 公开了一种照明装置,其在一个具体实施例中包括一对光学可对准的“瞄准器”,所述标记至少部分地由“放射性发光”部分照明和限定,特别适合于昏暗 这些片段包括磷光材料和适于诱导规定磷光的“匹配”放射性同位素。

    Nuclear light source
    7.
    发明授权
    Nuclear light source 失效
    核光源

    公开(公告)号:US4103172A

    公开(公告)日:1978-07-25

    申请号:US670688

    申请日:1976-03-26

    IPC分类号: F21S8/00 G21H3/02 F21K2/02

    CPC分类号: G21H3/02 F21W2111/00

    摘要: The invention relates to light sources and, in particular, to light sources for use in navigational aids such as lighthouses and lighted buoys.In more detail, the light source of the present invention comprises a radio isotope fuel source, thermal insulation against heat loss, a biological shield against the escape of ionizing radiation, a material having a surface which attains incandescence when subject to isotope decay heat and means for transferring energy from the insulated fuel source to produce incandescence of the surface and thereby emit light.

    Scintillator composition
    8.
    发明授权
    Scintillator composition 失效
    闪烁体组成

    公开(公告)号:US3951847A

    公开(公告)日:1976-04-20

    申请号:US483317

    申请日:1974-06-26

    申请人: Mark Hyman, Jr.

    发明人: Mark Hyman, Jr.

    摘要: A new scintillator composition, consisting essentially of di-m-methylphenyl-1,3,4-oxadiazole, or 2,5-di-m-tolyl-1,3,4-oxadiazole, is prepared by reacting m-toluoyl chloride with hydrazine to form di-m-toluoyl hydrazine which, in turn, is reacted with thionyl chloride to form the desired product which is dissolved in an organic solvent. The scintillator, di-m-methylphenyloxadiazole compares favorably with present commercial products, being equal to or better than diphenyloxazole in most important respects and significantly superior in scintillation pulse height and in stability. It can be produced at a fraction of the cost of today's most widely used product.

    摘要翻译: 一种新的闪烁体组合物,主要由二 - 间甲基苯基-1,3,4-恶二唑或2,5-二间甲苯基-1,3,4-恶二唑组成,通过使间甲苯甲酰氯与 肼形成二甲苯酰肼,其又与亚硫酰氯反应形成溶解在有机溶剂中的所需产物。 闪烁体,二甲基苯基恶二唑与现有的商业产品相比,在最重要的方面等于或优于二苯基恶唑,并且在闪烁脉冲高度和稳定性方面显着优异。 它可以以当今最广泛使用的产品的成本的一小部分来生产。

    Liquid scintillator compositions for counting thermal neutrons
    10.
    发明授权
    Liquid scintillator compositions for counting thermal neutrons 失效
    用于计算热中子的液相色谱组合物

    公开(公告)号:US3573220A

    公开(公告)日:1971-03-30

    申请号:US3573220D

    申请日:1969-02-04

    申请人: MONSANTO CO

    发明人: BENSON ROYAL H

    CPC分类号: G01T3/06 G01T1/2042

    摘要: A SCINTILLATOR COMPOSITION FOR LIQUID SCINTILLATION COUNTING AND DETECTION OF THERMAL NEUTRONS COMPRISING (1) A SCINTILLATION SOLUTE AND AN ETHOXYLATED ALKYL PHENOL, AND (2) A LOADING AGENT COMPRISED OF AN AQUEOUS SOLUTION OF A COMPOUND OF AN ELEMENT HAVING HIGH THERMAL-NEUTRON-CAPTURE EFFICIENCY, SAID ELEMENT INTERACTING WITH SUCH NEUTRONS RESULTING IN THE PRODUCTION OF AN EXO-ERGIC NUCLEAR REACTION.