Portable low energy neutron source for high sensitivity material characterization
    1.
    发明申请
    Portable low energy neutron source for high sensitivity material characterization 审中-公开
    便携式低能中子源,用于高灵敏度材料表征

    公开(公告)号:US20060140326A1

    公开(公告)日:2006-06-29

    申请号:US11248377

    申请日:2005-10-11

    IPC分类号: H05H3/06

    CPC分类号: H05H3/06

    摘要: A source of low energy neutrons based on a combination of unique technology has resulted in a man-portable package suitable for field use. This source of low energy neutrons produces a forward directed beam to permit local control and it is electrically activated so there is no radiation hazard when it is turned off for transport and relocation.

    摘要翻译: 基于独特技术的组合的低能量中子源已经产生了适合野外使用的便携式包装。 这种低能量中子源产生前向定向光束,以允许局部控制,并且它被电激活,因此当其被关闭以用于运输和重定位时,不存在辐射危害。

    Compounds for neutron radiation detectors and systems thereof
    2.
    发明授权
    Compounds for neutron radiation detectors and systems thereof 有权
    中子辐射探测器及其系统的化合物

    公开(公告)号:US08461546B2

    公开(公告)日:2013-06-11

    申请号:US12418450

    申请日:2009-04-03

    IPC分类号: G01T3/00

    摘要: One embodiment includes a material exhibiting an optical response signature for neutrons that is different than an optical response signature for gamma rays, said material exhibiting performance comparable to or superior to stilbene in terms of distinguishing neutrons from gamma rays, wherein the material is not stilbene. Another embodiment includes a substantially pure crystal exhibiting an optical response signature for neutrons that is different than an optical response signature for gamma rays, the substantially pure crystal comprising a material selected from a group consisting of: 1-1-4-4-tetraphenyl-1-3-butadiene; 2-fluorobiphenyl-4-carboxylic acid; 4-biphenylcarboxylic acid; 9-10-diphenylanthracene; 9-phenylanthracene; 1-3-5-triphenylbenzene; m-terphenyl; bis-MSB; p-terphenyl; diphenylacetylene; 2-5-diphenyoxazole; 4-benzylbiphenyl; biphenyl; 4-methoxybiphenyl; n-phenylanthranilic acid; and 1-4-diphenyl-1-3-butadiene.

    摘要翻译: 一个实施例包括表现出与γ射线的光学响应特征不同的中子的光学响应特征的材料,所述材料在区分中子与γ射线方面表现出与二苯乙烯相当或优于其他物质的性能,其中该材料不是二苯乙烯。 另一个实施方案包括显示与γ射线的光学响应特征不同的中子的光学响应特征的基本上纯的晶体,所述基本上纯的晶体包括选自以下的材料:1-1-4-4-四苯基 - 1-3丁二烯; 2-氟联苯-4-羧酸; 4-联苯基羧酸; 9-10-二苯基蒽; 9-苯基蒽; 1-3,5-三苯基苯; 三联苯; 双MSB; 对三联苯 二苯基乙炔 2-5-diphenyoxazole; 4-苄基联苯; 联苯 4-甲氧基联苯; 邻苯二甲酸 和1-4-二苯基-1,3-丁二烯。

    SOLUTION-GROWN CRYSTALS FOR NEUTRON RADIATION DETECTORS, AND METHODS OF SOLUTION GROWTH
    3.
    发明申请
    SOLUTION-GROWN CRYSTALS FOR NEUTRON RADIATION DETECTORS, AND METHODS OF SOLUTION GROWTH 有权
    用于中子辐射探测器的解决方案 - 晶体结构和解决方案生长方法

    公开(公告)号:US20100252741A1

    公开(公告)日:2010-10-07

    申请号:US12418434

    申请日:2009-04-03

    摘要: A method according to one embodiment includes growing an organic crystal from solution, the organic crystal exhibiting a signal response signature for neutrons from a radioactive source. A system according to one embodiment includes an organic crystal having physical characteristics of formation from solution, the organic crystal exhibiting a signal response signature for neutrons from a radioactive source; and a photodetector for detecting the signal response of the organic crystal. A method according to another embodiment includes growing an organic crystal from solution, the organic crystal being large enough to exhibit a detectable signal response signature for neutrons from a radioactive source. An organic crystal according to another embodiment includes an organic crystal having physical characteristics of formation from solution, the organic crystal exhibiting a signal response signature for neutrons from a radioactive source, wherein the organic crystal has a length of greater than about 1 mm in one dimension.

    摘要翻译: 根据一个实施方案的方法包括从溶液中生长有机晶体,所述有机晶体对来自放射源的中子表现出信号响应特征。 根据一个实施方案的系统包括具有从溶液形成的物理特性的有机晶体,所述有机晶体对来自放射源的中子表现出信号响应特征; 以及用于检测有机晶体的信号响应的光电检测器。 根据另一个实施方案的方法包括从溶液中生长有机晶体,有机晶体足够大以显示来自放射源的中子的可检测的信号响应特征。 根据另一个实施方案的有机晶体包括具有从溶液形成的物理特性的有机晶体,所述有机晶体表现出来自放射源的中子的信号响应特征,其中所述有机晶体在一个维度上具有大于约1mm的长度 。

    Solution-grown crystals for neutron radiation detectors, and methods of solution growth
    4.
    发明授权
    Solution-grown crystals for neutron radiation detectors, and methods of solution growth 有权
    用于中子辐射探测器的溶液生长晶体和溶液生长方法

    公开(公告)号:US08207507B2

    公开(公告)日:2012-06-26

    申请号:US12418434

    申请日:2009-04-03

    IPC分类号: G01T3/06

    摘要: A method according to one embodiment includes growing an organic crystal from solution, the organic crystal exhibiting a signal response signature for neutrons from a radioactive source. A system according to one embodiment includes an organic crystal having physical characteristics of formation from solution, the organic crystal exhibiting a signal response signature for neutrons from a radioactive source; and a photodetector for detecting the signal response of the organic crystal. A method according to another embodiment includes growing an organic crystal from solution, the organic crystal being large enough to exhibit a detectable signal response signature for neutrons from a radioactive source. An organic crystal according to another embodiment includes an organic crystal having physical characteristics of formation from solution, the organic crystal exhibiting a signal response signature for neutrons from a radioactive source, wherein the organic crystal has a length of greater than about 1 mm in one dimension.

    摘要翻译: 根据一个实施方案的方法包括从溶液中生长有机晶体,所述有机晶体对来自放射源的中子表现出信号响应特征。 根据一个实施方案的系统包括具有从溶液形成的物理特性的有机晶体,所述有机晶体对来自放射源的中子表现出信号响应特征; 以及用于检测有机晶体的信号响应的光电检测器。 根据另一个实施方案的方法包括从溶液中生长有机晶体,有机晶体足够大以显示来自放射源的中子的可检测的信号响应特征。 根据另一个实施方案的有机晶体包括具有从溶液形成的物理特性的有机晶体,所述有机晶体表现出来自放射源的中子的信号响应特征,其中所述有机晶体在一个维度上具有大于约1mm的长度 。

    Use of earth field spin echo NMR to search for liquid minerals
    6.
    发明授权
    Use of earth field spin echo NMR to search for liquid minerals 失效
    使用地球自旋回波NMR来寻找液体矿物

    公开(公告)号:US06177794B1

    公开(公告)日:2001-01-23

    申请号:US09078593

    申请日:1998-05-13

    申请人: Wolfgang Stoeffl

    发明人: Wolfgang Stoeffl

    IPC分类号: G01V300

    摘要: An instrument for measuring the spatial, qualitative and quantitative parameters of an underground nuclear magnetic resonance (NMR) active liquid mineral deposit, including oil and water. A phased array of excitation and receiver antennas on the surface and/or in a borehole excites the NMR active nuclei in the deposit, and using known techniques from magnetic resonance imaging (MRI), the spatial and quantitative distribution of the deposit can be measured. A surface array may utilize, for example, four large (50-500 diameter) diameter wire loops laid on the ground surface, and a weak (1.5-2.5 kHz) alternating current (AC) field applied, matching the NMR frequency of hydrogen in the rather flat and uniform earth magnetic field. For a short duration (a few seconds) an additional gradient field can be generated, superimposed to the earth field, by applying direct current (DC) to the grid (wire loops), enhancing the position sensitivity of the spin-echo and also suppressing large surface water signals by shifting them to a different frequency. The surface coil excitation can be combined with downhole receivers, which are much more radio-quiet compared to surface receivers, and this combination also enhances the position resolution of the MRI significantly. A downhole receiver module, for example, may have a 5.5 inch diameter and fit in a standard six inch borehole having a one-quarter inch thick stainless steel casing. The receiver module may include more than one receiver units for improved penetration and better position resolution.

    摘要翻译: 一种用于测量地下核磁共振(NMR)活性液体矿物沉积物(包括油和水)的空间,定性和定量参数的仪器。 表面和/或钻孔中的激发和接收天线的相控阵列激发沉积物中的NMR活性核,并且使用来自磁共振成像(MRI)的已知技术,可以测量沉积物的空间和定量分布。 表面阵列可以利用例如放置在地表面上的四个大(直径为50-500)直径的线圈环路,以及施加弱(1.5-2.5kHz)的交流电流(AC)场,与氢的NMR频率匹配 相当平坦和均匀的地球磁场。 短时间内(几秒钟),通过向网格(线环)施加直流电(DC),增加自旋回波的位置灵敏度,并且抑制 通过将它们转移到不同的频率来获得大的地表水信号。 表面线圈激励可以与井下接收器组合,与地面接收器相比,它们的放射性更安静,并且这种组合也显着增强了MRI的位置分辨率。 例如,井下接收器模块可以具有5.5英寸的直径并且装配在具有四分之一英寸厚的不锈钢外壳的标准六英寸钻孔中。 接收器模块可以包括多于一个用于改善穿透和更好的位置分辨率的接收器单元。