公开(公告)号：EP3293550A1

公开(公告)日：2018-03-14

申请号：EP17190566.4

申请日：2017-09-12

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： YANG, Yigang ,  LI, Yuanjing ,  FANG, Zhujun ,  LI, Yulan

IPC: G01T3/00

CPC classification number: G01T3/008 ,  G01T1/167 ,  H01J47/12

Abstract: A slow neutron detection device is disclosed, comprising: a first slow neutron converter and a second slow neutron converter, and a readout electrode wire set and cathode wire sets arranged between the first slow neutron converter and the second slow neutron converter. By arranging a readout circuit between the two slow neutron converters, an electron drift distance is reduced by half without changing a dimension of the detection device, and an average over-threshold probability of a signal is increased.

Abstract translation: 本发明公开了一种慢中子探测装置，包括：第一慢中子转换器和第二慢中子转换器，以及设置在第一慢中子转换器和第二慢中子转换器之间的读出电极线组和阴极线组。 通过在两个慢中子转换器之间布置读出电路，电子漂移距离减小一半而不改变检测装置的尺寸，并且信号的平均过阈值概率增加。

公开(公告)号：EP3007848A1

公开(公告)日：2016-04-20

申请号：EP14736508.4

申请日：2014-05-29

Applicant: General Electric Company

Inventor： RUDD, Jeffrey, Roy ,  OLECHNOWICZ, Benjamin, John ,  MANRING, Stephen, William

IPC: B23K9/028 ,  B23K9/235 ,  B23K26/20 ,  B23K26/28 ,  B23K26/30 ,  B23K9/00 ,  H01J47/00 ,  H01J47/12 ,  B23K33/00

CPC classification number: G01T3/008 ,  B23K9/0026 ,  B23K9/0286 ,  B23K9/235 ,  B23K26/206 ,  B23K26/282 ,  B23K26/60 ,  B23K33/002 ,  B23K33/006 ,  H01J47/002 ,  H01J47/12

Abstract: A detector (30) includes an outer shell (40) having a shell profile in which a welded portion (56) of the shell profile extends as an annular flange in an outward direction relative to a center axis of the outer shell. The detector further includes an end cap (70) positioned adjacent the welded portion of the outer shell. The end cap and the welded portion of the outer shell are welded together to form a seal. A method of making a detector is also provided.

公开(公告)号：EP2854156A1

公开(公告)日：2015-04-01

申请号：EP14184524.8

申请日：2014-09-12

Applicant: General Electric Company

Inventor： Olechnowicz, Benjamin John

IPC: H01J47/12

CPC classification number: H01J47/12

Abstract: An atomic particle detection assembly (10) includes at least one detector (30) that detects atomic particles. The atomic particle detection assembly includes a junction apparatus (40) supporting the detector. The junction apparatus includes a first manifold (60) attached to a first housing (44) at an attachment location. The junction apparatus includes a sealing device (90) sealing the first manifold with respect to the first housing along a sealing axis (92). The sealing axis is substantially parallel to and separated a first distance (d 1 ) from an attachment axis defined by the attachment location.

Abstract translation: 原子粒子检测组件（10）包括检测原子粒子的至少一个检测器（30）。 原子粒子检测组件包括支撑检测器的接合装置（40）。 连接装置包括在附接位置处附接到第一壳体（44）的第一歧管（60）。 连接装置包括密封装置（90），该密封装置沿着密封轴线（92）相对于第一壳体密封第一歧管。 密封轴基本上平行于并由与附接位置限定的附接轴分离第一距离（d 1）。

公开(公告)号：EP0043252B1

公开(公告)日：1984-10-10

申请号：EP81302883.4

申请日：1981-06-25

Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

Inventor： Tomoda, Toshimasa c/o Central Research Laboratory

IPC: H01J47/12

CPC classification number: H01J47/1238 ,  H01J47/12

公开(公告)号：EP2819147A3

公开(公告)日：2015-04-01

申请号：EP14173988.8

申请日：2014-06-25

Applicant: General Electric Company

Inventor： Olechnowicz, Benjamin John

IPC: H01J47/12 ,  G01T3/00

CPC classification number: G01T3/008 ,  G01T3/00 ,  H01J47/12

Abstract: An atomic particle detection assembly (10) includes one or more detectors (30) that detect atomic particles, particularly neutrons. The detectors are positioned within a first chamber (22) having a first operating pressure. The atomic particle detection assembly includes a junction apparatus (40) supporting the detectors. The junction apparatus defines a second chamber (100) having a second operating pressure that is different from the first operating pressure. Sensing electronics (50) are attached to the detectors and the sensing electronics are housed within the second chamber of the junction apparatus.

公开(公告)号：EP2819147A2

公开(公告)日：2014-12-31

申请号：EP14173988.8

申请日：2014-06-25

Applicant: General Electric Company

Inventor： Olechnowicz, Benjamin John

IPC: H01J47/12 ,  G01T3/00

CPC classification number: G01T3/008 ,  G01T3/00 ,  H01J47/12

Abstract: An atomic particle detection assembly (10) includes one or more detectors (30) that detect atomic particles, particularly neutrons. The detectors are positioned within a first chamber (22) having a first operating pressure. The atomic particle detection assembly includes a junction apparatus (40) supporting the detectors. The junction apparatus defines a second chamber (100) having a second operating pressure that is different from the first operating pressure. Sensing electronics (50) are attached to the detectors and the sensing electronics are housed within the second chamber of the junction apparatus.

Abstract translation: 原子粒子检测组件（10）包括检测原子粒子，特别是中子的一个或多个检测器（30）。 检测器位于具有第一操作压力的第一室（22）内。 原子粒子检测组件包括支撑检测器的接合装置（40）。 连接装置限定具有不同于第一操作压力的第二操作压力的第二室（100）。 感测电子器件（50）附接到检测器，并且感测电子器件容纳在接合设备的第二腔室内。

公开(公告)号：EP2819147B1

公开(公告)日：2018-08-29

申请号：EP14173988.8

申请日：2014-06-25

Applicant: General Electric Company

Inventor： Olechnowicz, Benjamin John

IPC: H01J47/12 ,  G01T3/00

CPC classification number: G01T3/008 ,  G01T3/00 ,  H01J47/12

Abstract: An atomic particle detection assembly (10) includes one or more detectors (30) that detect atomic particles, particularly neutrons. The detectors are positioned within a first chamber (22) having a first operating pressure. The atomic particle detection assembly includes a junction apparatus (40) supporting the detectors. The junction apparatus defines a second chamber (100) having a second operating pressure that is different from the first operating pressure. Sensing electronics (50) are attached to the detectors and the sensing electronics are housed within the second chamber of the junction apparatus.

公开(公告)号：EP0043252A1

公开(公告)日：1982-01-06

申请号：EP81302883.4

申请日：1981-06-25

Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

Inventor： Tomoda, Toshimasa c/o Central Research Laboratory

IPC: H01J47/12

CPC classification number: H01J47/1238 ,  H01J47/12

Abstract: nuclear reactor in-vessel neutron detector has a gas-tight ionization chamber consisting of tubular concentric inner and outer electrodes (2,4) supported by ceramic end members (8,10) with a portion of the space within the inner electrode (4) sealingly partitioned off to reduce the space occupied by a chamber-filler gas, either helium or argon, which fills the spaces that remain within the outer electrode via an exhaust-cum-gas filler pipe (14) supported by an end plate (12), to reduce the number of atoms of the ionization gas. Coated on at least one of the inner surface (20) of the outer electrode and the outer surface (22) of the inner electrode is a coating (24) of enriched uranium, substantially 90% 235 U, as a sensitive material, the ratio of the number of atoms of which to the number of atoms of the filler gas is selected to be an optimum, being between 0.45 and 1.8 for helium and 2.3 and 9.0 for argon, so that inert gas atoms formed from the 235 U accumulate in the filler gas to increase the detector sensitivity to offset the depletion of the 235 U.

Abstract translation: 核反应堆容器中子探测器具有气密电离室，其由管状同心的内部和外部电极（2,4）组成，其由陶瓷端部构件（8,10）支撑，内部电极（4）内的一部分空间 ）密封地分开以减少由填充气体（氦或氩）占据的空间，其通过由端板（12）支撑的排气暨气体填充管（14）填充剩余在外部电极内的空间 ），以减少电离气体的原子数。 涂覆在外部电极的内表面（20）和内部电极的外表面（22）中的至少一个上的是浓缩铀的涂层（24），基本上为90％<3> <5> U 作为敏感材料，其原子数与填充气体的原子数之比选择为最佳，氦为0.45〜1.8，氩为2.3〜9.0，惰性气体原子 由填料气体中积聚的<2> <3> <5> U形成，以增加检测器的灵敏度，以抵消<2> <3> 5 U的消耗。