公开(公告)号：US20150338527A1

公开(公告)日：2015-11-26

申请号：US14403707

申请日：2012-06-08

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Irina Mikhailovna ASTAFIEVA ,  Oliver HEID ,  Timothy HUGHES

IPC: G01T1/185 ,  G01T1/20 ,  H01J47/02

CPC classification number: G01T1/185 ,  G01T1/2006 ,  H01J47/02 ,  H01J47/024

Abstract: A detector for radiation, particularly high energy electromagnetic radiation is provided. The detector includes a converting section including a cathode for converting the radiation incident on the converting section in electrons by the photoelectric effect. The detector further includes a gas electron multiplier for generating an electron avalanche from electrons which are generated by the converting section and enter the gas electron multiplier, the gas electron multiplier including a first electrode, a dielectric layer and a second electrode, the first electrode being disposed at a first side of the dielectric layer adjacent to the converting section and the second electrode being disposed at a second side of the dielectric layer opposite to the first side. The gas electron multiplier includes a number of holes filled with gas, the holes extending through the first electrode, the dielectric layer and the second electrode.

Abstract translation: 提供了用于辐射的检测器，特别是高能量的电磁辐射。 检测器包括转换部分，其包括用于通过光电效应将入射在转换部分上的辐射转换为电子的阴极。 检测器还包括气体电子倍增器，用于从由转换部分产生并进入气体电子倍增器的电子产生电子雪崩，气体电子倍增器包括第一电极，电介质层和第二电极，第一电极为 设置在与转换部相邻的电介质层的第一侧，第二电极设置在与第一侧相反的电介质层的第二侧。 气体电子倍增器包括填充有气体的多个孔，所述孔延伸穿过第一电极，电介质层和第二电极。

公开(公告)号：US20130256535A1

公开(公告)日：2013-10-03

申请号：US13992341

申请日：2011-12-07

Applicant: Afric Simone Meijer ,  Willem Joan Van Der Zande

Inventor： Afric Simone Meijer ,  Willem Joan Van Der Zande

IPC: G01J5/02

CPC classification number: G01J5/02 ,  G01J3/42 ,  G01N21/3563 ,  G01N21/3581 ,  H01J47/024

Abstract: Detector for terahertz radiation with a micro-plasma cell (1) having a cavity (5) including a plasma in operation when applying a DC bias to the micro-plasma cell (1). Furthermore, the detector is provided with read-out electronics (20) connected to the micro-plasma cell (1). The read-out electronics measure changes of an electron density in the plasma in the micro-plasma cell (1) with respect to the DC bias provided electron density. The cavity (5) includes a gas composition near atmospheric pressure or higher, and the gas composition includes a Penning mixture.

Abstract translation: 具有微等离子体电池（1）的太赫兹辐射检测器，当在微等离子体电池（1）上施加DC偏压时，具有包括等离子体的空腔（5）。 此外，检测器设置有连接到微等离子体电池（1）的读出电子器件（20）。 读出的电子元件测量微等离子体电池（1）中的等离子体中的电子密度相对于提供的电子密度的DC偏压的变化。 空腔（5）包括接近大气压或更高的气体组成，气体组成包括Penning混合物。

公开(公告)号：US09594171B2

公开(公告)日：2017-03-14

申请号：US14403707

申请日：2012-06-08

Applicant: Irina Astafieva ,  Oliver Heid ,  Timothy Hughes

Inventor： Irina Astafieva ,  Oliver Heid ,  Timothy Hughes

IPC: G01V5/04 ,  G01T1/185 ,  H01J47/02 ,  G01T1/20

CPC classification number: G01T1/185 ,  G01T1/2006 ,  H01J47/02 ,  H01J47/024

Abstract: A detector for radiation, particularly high energy electromagnetic radiation is provided. The detector includes a converting section including a cathode for converting the radiation incident on the converting section in electrons by the photoelectric effect. The detector further includes a gas electron multiplier for generating an electron avalanche from electrons which are generated by the converting section and enter the gas electron multiplier, the gas electron multiplier including a first electrode, a dielectric layer and a second electrode, the first electrode being disposed at a first side of the dielectric layer adjacent to the converting section and the second electrode being disposed at a second side of the dielectric layer opposite to the first side. The gas electron multiplier includes a number of holes filled with gas, the holes extending through the first electrode, the dielectric layer and the second electrode.

Abstract translation: 提供了用于辐射的检测器，特别是高能量的电磁辐射。 检测器包括转换部分，其包括用于通过光电效应将入射在转换部分上的辐射转换为电子的阴极。 检测器还包括气体电子倍增器，用于从由转换部分产生并进入气体电子倍增器的电子产生电子雪崩，气体电子倍增器包括第一电极，电介质层和第二电极，第一电极为 设置在与转换部相邻的电介质层的第一侧，第二电极设置在与第一侧相反的电介质层的第二侧。 气体电子倍增器包括填充有气体的多个孔，所述孔延伸穿过第一电极，电介质层和第二电极。

公开(公告)号：US5095217A

公开(公告)日：1992-03-10

申请号：US599305

申请日：1990-10-17

Applicant: Frank H. Attix

Inventor： Frank H. Attix

IPC: G01T1/185 ,  H01J47/02

CPC classification number: G01T1/185 ,  H01J47/024

Abstract: An ionization chamber radiation detector includes an outer shell, an inner well electrically connected to the outer shell to define an ionization chamber sensitive volume between them, and an ionization electrode that extends upwardly from a base into the space between the side walls of the well and shell. The shell and the walls of the well are grounded while the ionization electrode, which is electrically insulated from the shell, has a high voltage applied thereto. A guard electrode at the same voltage prevents electrical leakage. A sample positioner includes a thin walled guide tube which extends from a top cap down to a spacing disc. The spacing disc has an outer periphery which closely matches the interior of the well so that when the positioner is inserted into the wall the guide tube will be held at a desired position, preferably at the central axis of the well. A radiation source sample in a catheter is inserted through an opening in the top cap into the thin walled guide tube and down to a desired position within the tube, which precisely locates the source at a position which is preferably on the central axis of the detector. Close spacing between the source and the ionization chamber results in relatively high ionization current, allowing the radiation level to be measured based on the ionization current rather accumulated charge, and minimizing the effect of ambient background radiation.

Abstract translation: 电离室辐射检测器包括外壳，电气连接到外壳以在它们之间限定电离室敏感体积的内部孔，以及从基部向上延伸到井的侧壁之间的空间中的电离电极，以及 贝壳。 壳体和井的壁接地，而与壳体电绝缘的电离电极施加高电压。 相同电压下的保护电极可防止漏电。 样品定位器包括从顶盖向下延伸到间隔盘的薄壁导管。 间隔盘具有与井的内部紧密匹配的外周，使得当定位器插入壁中时，引导管将被保持在期望的位置，优选地保持在井的中心轴线处。 导管中的辐射源样品通过顶盖中的开口插入薄壁引导管中并且下降到管内的期望位置，该精确定位将源定位在优选位于检测器的中心轴线上的位置 。 源和电离室之间的紧密间隔导致相对高的电离电流，允许基于电离电流而不是累积电荷来测量辐射水平，并且最小化环境背景辐射的影响。