公开(公告)号：US5326976A

公开(公告)日：1994-07-05

申请号：US894637

申请日：1992-06-05

Applicant: Hiroshi Kikuchi

Inventor： Hiroshi Kikuchi

IPC: G01T1/185 ,  H01J47/00 ,  H01J47/02

CPC classification number: H01J47/02 ,  H01J47/002

Abstract: A radiation monitor has an ionization space formed with a frame made of insulating material, a high-voltage electrode, and a collecting electrode opposing the high-voltage electrode. The ionization space has an equal dimension throughout the passage of a radiation. Therefore, the Boyle-Charles' law applies almost perfectly to the ionization space. Thus, an ionization current can be extracted without the influence of an ambient pressure or temperature.

Abstract translation: 辐射监测器具有由绝缘材料制成的框架，高压电极和与高压电极相对的集电极形成的电离空间。 电离空间在辐射通过期间具有相等的尺寸。 因此，博伊尔 - 查尔斯定律几乎完全适用于电离空间。 因此，可以在不受环境压力或温度的影响的情况下提取电离电流。

公开(公告)号：US4682964A

公开(公告)日：1987-07-28

申请号：US832980

申请日：1986-02-25

Applicant: Douglas S. Steele ,  Francis H. Little ,  Joseph J. Sostarich ,  Douglas E. Ingram

Inventor： Douglas S. Steele ,  Francis H. Little ,  Joseph J. Sostarich ,  Douglas E. Ingram

IPC: G01T1/185 ,  A61B6/03 ,  H01J47/00 ,  H01J47/02 ,  G01T1/18

CPC classification number: H01J47/002 ,  H01J47/02

Abstract: Method for improving signal response of a linear array ionization detector. The detector employs a detector assembly having plural closely-spaced detector elements mounted on a substrate with the assembly positioned in a high pressure, gas-filled chamber. Signal response is improved by cleaning the assembly and coating it with a moisture resistant material before insertion into the chamber.

Abstract translation: 改善线性阵列电离检测器信号响应的方法。 检测器采用具有安装在基板上的多个紧密间隔的检测器元件的检测器组件，该组件位于高压充气室中。 通过清洁组件并在插入室内之前用防潮材料涂覆信号来改善信号响应。

公开(公告)号：US4570071A

公开(公告)日：1986-02-11

申请号：US565671

申请日：1983-12-27

Applicant: Theodore W. Sippel ,  Douglas S. Steele

Inventor： Theodore W. Sippel ,  Douglas S. Steele

IPC: A61B6/03 ,  G01T1/185 ,  H01J47/00 ,  H01J47/02 ,  G01T1/18

CPC classification number: H01J47/02 ,  H01J47/002

Abstract: The present invention relates to detectors used in X-ray tomographic imaging. The invention describes a multi-element detector array which detects ionization events in a xenon dielectric, and also describes a pressure vessel for containment of the xenon and detector.

Abstract translation: 本发明涉及用于X射线层析成像的检测器。 本发明描述了一种多元素检测器阵列，其检测氙电介质中的电离事件，并且还描述了用于容纳氙和检测器的压力容器。

公开(公告)号：US4562354A

公开(公告)日：1985-12-31

申请号：US515612

申请日：1983-07-20

Applicant: Manfred Keller ,  Gunter Opladen

Inventor： Manfred Keller ,  Gunter Opladen

IPC: G01T1/185 ,  H01J47/00 ,  H01J47/02

CPC classification number: H01J47/002 ,  G01T1/185 ,  H01J47/02

Abstract: An ionization chamber of reduced size, with an end window of a diameter preferably smaller than 3 cm is mounted on the end of a hand probe containing an amplifier, the output of which goes through a cable to an indicating device. One of a set of aperture diaphragms may be slipped over the end window to reduce the area of the window transparent to beta rays. In addition to the end window, slots in the cylindrical wall of the chamber increase the solid angle through which radiation may enter the chamber. The end window and the slotted walls of the chamber are covered with tissue-equivalent material for measurement of radiation exposure dose by the electrodes of the chamber and their associated amplifier and indicator. An alternative design with a conical chamber and conical inner electrode and a smaller window provides reliable measurement, even in inhomogeneous radiation fields without the necessity of using diaphragms.

Abstract translation: 减小尺寸的电离室具有直径优选小于3cm的端窗安装在包含放大器的手指探针的端部上，该放大器的输出通过电缆穿过指示装置。 一组孔径光阑中的一个可以滑过端窗，以减小窗口对β射线透明的面积。 除了端窗外，腔室的圆柱形壁中的槽增加了辐射可以通过其进入腔室的立体角。 室的端窗和开槽壁被组织等效材料覆盖，用于通过室的电极及其相关的放大器和指示器测量辐射照射剂量。 具有锥形室和圆锥形内电极和较小窗口的替代设计即使在不均匀的辐射场中也不需要使用隔膜，提供可靠的测量。