Method of locating sound generation within enclosure
    1.
    发明授权
    Method of locating sound generation within enclosure 失效
    定位外壳内声音产生的方法

    公开(公告)号:US4352167A

    公开(公告)日:1982-09-28

    申请号:US129559

    申请日:1980-03-12

    CPC分类号: G01S5/22 G01S5/30

    摘要: A number of sound detectors are provided on an external enclosure of a pressure vessel of a nuclear reactor. Output signals produced from the individual detectors are combined into a pattern in terms of time difference of the detector output signals relative to the time point at which the detected signal is first produced in response to the sound signal and relative peak values of the detector output signals relative to the magnitude of the output signal produced by the detector which detects the sound signal with the highest sensitivity. The pattern thus obtained is then compared with patterns which have been previously prepared by intentionally producing the sound signals at locations in interest within the pressure vessel, to thereby estimate the location within the pressure vessel at which the sound is produced.

    摘要翻译: 在核反应堆的压力容器的外壳上设置有多个声音检测器。 根据检测器输出信号相对于首先产生检测信号的时间点的响应于声音信号和检测器输出信号的相对峰值的时间差,从各个检测器产生的输出信号被组合成模式 相对于由检测器产生的输出信号的大小来检测具有最高灵敏度的声音信号。 然后将如此获得的图案与先前通过在压力容器内有意产生声音信号的位置产生的图案进行比较,从而估计产生声音的压力容器内的位置。

    Unknown sound evaluating method and apparatus
    2.
    发明授权
    Unknown sound evaluating method and apparatus 失效
    未知的声音评估方法和装置

    公开(公告)号:US4586378A

    公开(公告)日:1986-05-06

    申请号:US658167

    申请日:1984-10-05

    IPC分类号: G01S5/22 G01S5/30 G01N29/04

    CPC分类号: G01S5/30 G01S5/22

    摘要: Method and apparatus for evaluating location of an unknown sound generated in a structure such as a pressure vessel. A plurality of sound detectors are mounted on the structure for detecting sounds generated in the structure. On the basis of sound information of the unknown sound source derived from the outputs of the detectors, the location where the unknown sound is produced is determined. To this end, reference sounds are first generated at a plurality of known reference sound source positions, wherein information of the reference sounds derived from the outputs of the detectors are stored in a storage unit. Equi-pattern-distance curves each of which is in an equal pattern distance between a supposed unknown sound source and each of the reference sound sources are calculated on the basis of the reference sound information. The equi-pattern-distance curves are further corrected in accordance with the reference sound information. Upon occurrence of an unknown sound, pattern distances between the desired reference sound source positions and the unknown sound source position are calculated through pattern recognition procedure from the sound information derived from the outputs of the detector and the reference sound information stored. On the basis of the calculated pattern distances and the equi-pattern-distance curves, the position of the unknown sound source is determined. On the basis of the position of the unknown sound source, kinetic energy thereof may be arithmetically determined.

    摘要翻译: 用于评估在诸如压力容器的结构中产生的未知声音的位置的方法和装置。 多个声音检测器安装在用于检测在结构中产生的声音的结构上。 基于从检测器的输出导出的未知声源的声音信息,确定产生未知声音的位置。 为此,首先在多个已知参考声源位置产生参考声音,其中从检测器的输出导出的参考声音的信息被存储在存储单元中。 基于参考声音信息计算每个假想的未知声源与每个参考声源之间的相等图案距离的等距离距离曲线。 根据参考声音信息进一步校正等距离距离曲线。 在出现未知声音时,通过从检测器的输出和存储的参考声音信息导出的声音信息通过模式识别程序来计算期望的参考声源位置与未知声源位置之间的图案距离。 根据计算出的图案距离和等距离距离曲线,确定未知声源的位置。 在未知声源的位置的基础上,可以算术地确定其动能。

    CT system and method of using the same
    4.
    发明授权
    CT system and method of using the same 失效
    CT系统及其使用方法

    公开(公告)号:US5228071A

    公开(公告)日:1993-07-13

    申请号:US799206

    申请日:1991-11-27

    IPC分类号: G01B15/04 G01N1/00 G01N23/04

    CPC分类号: G01N23/046 G01N2223/419

    摘要: A CT system for cross-sectional imaging and a method using the same are involved. A second table for fine adjustment of an object is arranged on a conventional first table for the object. The center of gravity of a cross-sectional image of the object imaged in advance is determined, the object is finely moved by means of the second table such that the determined center of gravity coincides with the center or a corner of a mesh used for image formation, and cross-sectional imaging is again carried out. Through this, contrast at the edge of the object can be improved when the object is highly symmetrical as are many industrial products.

    摘要翻译: 涉及用于横截面成像的CT系统和使用该CT系统的方法。 用于对象的精细调整的第二表被布置在用于该对象的常规第一表上。 确定预先拍摄的物体的横截面图像的重心,利用第二台精细地移动物体,使得确定的重心与用于图像的网格的中心或角部重合 再次进行形成和横截面成像。 通过这样,当物体与许多工业产品一样高度对称时,可以改善物体边缘处的对比度。

    Neutron individual dose meter neutron dose rate meter, neutron detector
and its method of manufacture
    6.
    再颁专利
    Neutron individual dose meter neutron dose rate meter, neutron detector and its method of manufacture 失效
    中子单剂量计中子剂量率计,中子探测器及其制造方法

    公开(公告)号:USRE35908E

    公开(公告)日:1998-09-29

    申请号:US662229

    申请日:1996-06-14

    CPC分类号: G01T3/08 G01T1/026

    摘要: A neutron individual dose meter and a neutron dose rate meter, both capable of implementing the effective dose equivalent response. The neutron individual dose meter is capable of being accomplished by providing a composite layer made up of a converter such as boron, and a proton radiator, on the surface of a semiconductor neutron detection element. The neutron dose rate meter is capable of being accomplished through such a structure as to surround a neutron detector with a neutron moderator and a thermal neutron absorber which has openings. Thus, a neutron individual dose meter and a neutron dose rate meter, both capable of implementing the effective dose equivalent response and measurement at lower operating voltage have been provided. Further, these meters are capable of being implemented by utilizing a single semiconductor detection element, respectively.

    摘要翻译: PCT No.PCT / JP91 / 00574 Sec。 371日期1991年12月27日 102(e)日期1991年12月27日PCT 1991年4月26日PCT PCT。 公开号WO91 / 17462 日期1991年11月4日中子单个剂量计和中子剂量率计,均能实现有效剂量当量反应。 中子单个剂量计能够通过在半导体中子检测元件的表面上提供由诸如硼的转换器和质子辐射器构成的复合层来实现。 中子剂量率计能够通过这样一种结构来实现,即用中子减速剂和具有开口的热中子吸收体包围中子检测器。 因此,提供了能够在较低工作电压下实现有效剂量当量响应和测量的中子单个剂量计和中子剂量率计。 此外,这些仪表能够分别通过利用单个半导体检测元件来实现。

    Semiconductor radiation detection apparatus for discriminating radiation
having differing energy levels
    10.
    发明授权
    Semiconductor radiation detection apparatus for discriminating radiation having differing energy levels 失效
    用于区分具有不同能级的辐射的半导体辐射检测装置

    公开(公告)号:US5457322A

    公开(公告)日:1995-10-10

    申请号:US219353

    申请日:1994-03-29

    IPC分类号: G01T1/24 H01L31/09 H01L31/115

    CPC分类号: G01T1/241 H01L31/115

    摘要: The invention provides a high sensitivity semiconductor radiation detection apparatus having pn junctions formed in opposite surfaces of at least one semiconductor wafer. A common electrode for the pn junctions is formed in the substrate region of the semiconductor wafers, and a variable reverse bias voltage is supplied to an electrode formed in contact with at least one of the pn junctions, to vary the thickness of the depletion region generated at said pn junction, and hence the sensitivity of said junction to incident radiation of varying energy levels. By adjusting the relative thickness of the respective depletion regions, different types of radiation may be distinguished.

    摘要翻译: 本发明提供一种具有形成在至少一个半导体晶片的相对表面上的pn结的高灵敏度半导体辐射检测装置。 在半导体晶片的衬底区域中形成用于pn结的公共电极,并且向与pn结中的至少一个接触形成的电极提供可变反向偏压,以改变所产生的耗尽区的厚度 在所述pn结处,因此所述结点对不同能级的入射辐射的灵敏度。 通过调整各耗尽区的相对厚度,可以区分不同类型的辐射。