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116 条记录 (耗时 0.019 秒)

    PORTABLE MULTIPLICITY COUNTER
    61.
    发明公开
    PORTABLE MULTIPLICITY COUNTER 审中-公开
    便携式多重性计数器

    公开(公告)号：EP2137736A1

    公开(公告)日：2009-12-30

    申请号：EP08794289.2

    申请日：2008-02-12

    申请人： Los Alamos National Security, LLC

    发明人： NEWELL, Matthew, R. ,  JONES, David, Carl

    IPC分类号： G11C19/00

    CPC分类号： G01T3/00 ,  G01T7/00

    摘要： A portable multiplicity counter has signal input circuitry, processing circuitry and a user/computer interface disposed in a housing. The processing circuitry, which can comprise a microcontroller integrated circuit operably coupled to shift register circuitry implemented in a field programmable gate array, is configured to be operable via the user/computer interface to count input signal pluses receivable at said signal input circuitry and record time correlations thereof in a total counting mode, coincidence counting mode and/or a multiplicity counting mode. The user/computer interface can be for example an LCD display/keypad and/or a USB interface. The counter can include a battery pack for powering the counter and low/high voltage power supplies for biasing external detectors so that the counter can be configured as a hand-held device for counting neutron events.

    摘要翻译： 便携式多重计数器具有设置在外壳中的信号输入电路，处理电路和用户/计算机接口。 可以包括可操作地耦合到在现场可编程门阵列中实现的移位寄存器电路的微控制器集成电路的处理电路被配置为可通过用户/计算机接口操作以对在所述信号输入电路处可接收的输入信号脉冲进行计数并且记录时间 其在总计数模式，同时计数模式和/或多重计数模式中的相关性。 用户/计算机接口可以是例如LCD显示器/键盘和/或USB接口。 该计数器可以包括用于为计数器供电的电池组和用于偏置外部检测器的低/高电压电源，使得计数器可以被配置为用于计数中子事件的手持设备。

    ENERGY EFFICIENT SYNTHESIS OF BORANES
    64.
    发明公开
    ENERGY EFFICIENT SYNTHESIS OF BORANES 审中-公开
    节能高效合成BORA

    公开(公告)号：EP1984406A2

    公开(公告)日：2008-10-29

    申请号：EP07763433.5

    申请日：2007-02-08

    申请人： Los Alamos National Security, LLC

    发明人： THORN, David, L. ,  TUMAS, William ,  SCHWARZ, Daniel E. ,  BURRELL, Anthony, K.

    IPC分类号： C08F4/44 ,  C08F4/00 ,  C08F4/14

    CPC分类号： C01B6/15 ,  C01B6/19 ,  C01B35/061

    摘要： The reaction of halo-boron compounds (B-X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B-H compounds, compounds having one or more B-H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si-H) react with B-X compounds to form B-H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface- bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn-H bond) to form boranes and halostannanes (tin compounds having a Sn-X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCI3, the B-H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.

    DETECTION AND MONITORING OF CHANGES IN METALLIC STRUCTURES USING MULTIMODE ACOUSTIC SIGNALS
    68.
    发明公开
    DETECTION AND MONITORING OF CHANGES IN METALLIC STRUCTURES USING MULTIMODE ACOUSTIC SIGNALS 审中-公开

    公开(公告)号：EP3335036A1

    公开(公告)日：2018-06-20

    申请号：EP16873503.3

    申请日：2016-08-12

    申请人： Los Alamos National Security, LLC ,  Chevron U.S.A. Inc.

    发明人： FINDIKOGLU, Alp T. ,  SINHA, Dipen N. ,  CHAPMAN, Daniel R.

    IPC分类号： G01N29/024 ,  G01N29/34 ,  G01F1/66 ,  G01F1/708 ,  G01F1/74

    摘要： Methods for detecting and monitoring changes in mechanical structures and in walls of pipes, vessels and storage tanks, using muitimode acoustic signal propagation and detection, are described. Acoustic signals having chosen amplitude-time-frequency characteristics excite multiple modes in the structure under investigation, are generated and received at a small number of accessible locations, such as the ends of pipes and the tops and bottoms of vessels and storage tanks, with the inspection region between transmit and receive transducers. Small mechanical changes lead to acoustic scattering and attenuation among the various modes, which are detectable as changes in received signal intensity. Such changes may include material loss, material conversion and material addition. Once the structure is characterized in a known condition, the present method may be used to monitor the structure at a later time to determine whether changes have taken place. Methods for effective temperature compensation are also described. In addition, various pipe geometries and complex pipe geometries involving elbows, flanges, and the like can be monitored.

    APPARATUS FOR PREPARING MEDICAL RADIOISOTOPES
    70.
    发明公开
    APPARATUS FOR PREPARING MEDICAL RADIOISOTOPES 审中-公开
    用于制备医用放射性同位素的设备

    公开(公告)号：EP3221866A1

    公开(公告)日：2017-09-27

    申请号：EP15860848.9

    申请日：2015-11-17

    申请人： Los Alamos National Security LLC

    发明人： WOLOSHUN, Keith A. ,  OLIVAS, Eric R. ,  DALE, Gregory E.

    IPC分类号： G21K5/08

    摘要： Apparatus for radioisotope production includes housing, a plurality of target disks inside the housing and a curved windows positioned convex inward toward the disks. During operation, coolant flows though the housing across the disks and windows while electron beams passes through the window and the disks. The window temperature increases, rising the fastest in the middle of the window where the electron beam hits the window. A flat window would buckle because the center would deform during thermal expansion against the relatively unaffected periphery, but the curved window shape allows the window to endure high thermal and mechanical stress created by a combination of heating from the electron beam(s) and elevated pressure from coolant on the inside of the window. Such a window may be used for applications in which a pressurized coolant acts on only one side of the window.

    摘要翻译： 用于放射性同位素生产的设备包括外壳，在外壳内的多个目标圆盘和朝向圆盘向内凸起的弯曲窗口。 在运行过程中，冷却液流过外壳，穿过磁盘和窗口，同时电子束穿过窗口和磁盘。 窗口温度升高，在电子束撞击窗口的窗口中间增加得最快。 平面窗会弯曲，因为中心会在相对不受影响的周边的热膨胀期间变形，但弯曲的窗形状允许窗承受来自电子束加热和高压的组合所产生的高热和机械应力 从窗户内侧的冷却剂。 这种窗户可以用于其中加压冷却剂仅作用于窗户的一侧的应用。