公开(公告)号：US5298756A

公开(公告)日：1994-03-29

申请号：US961661

申请日：1992-10-16

申请人： Tom McCollum ,  Garry B. Spector

发明人： Tom McCollum ,  Garry B. Spector

IPC分类号： G01T3/06

CPC分类号： G01T3/06

摘要： A flat response position sensitive neutron detector capable of providing neutron spectroscopic data utilizing scintillator fiber optic filaments embedded in a neutron moderating housing having an open end through which neutrons enter to be detected.

摘要翻译： 平坦的响应位置敏感的中子探测器，能够利用嵌入中子调节壳体中的闪烁体光纤提供中子光谱数据，该中子调节壳体具有中子进入以被检测的开口端。

公开(公告)号：USH801H

公开(公告)日：1990-07-03

申请号：US336456

申请日：1989-03-17

申请人： Walter Koechner ,  Deborah R. Van Wyck ,  Gary P. Stevenson ,  William Krug ,  Tom McCollum ,  Garry B. Spector

发明人： Walter Koechner ,  Deborah R. Van Wyck ,  Gary P. Stevenson ,  William Krug ,  Tom McCollum ,  Garry B. Spector

IPC分类号： G01T5/08

CPC分类号： G01T1/201

摘要： A nuclear radiation detection system for remote monitoring of movement of nuclear material over a road or highway. Nuclear fiber sensors, which may be several meters long, are covertly positioned in at least two monitoring points, such as buried shallowly under the roadway or hung from a tunnel wall, along the path which a nuclear source may be clandestinely moved. These fiber sensors are individually connected, by an epoxy glue, to individual transmitting optical fibers. Movement of a nuclear radiation source in close proximity to the fiber sensors at the two or more monitoring points produces an optical signal which exceeds a preestablished threshold. These optical signals travel through the transmitting optical fibers, which may be about 1 kilometers long, to a electronic system comprised of a microprocessor controlled signal detecting, signal processing and even data storage means. The optical fibers and electronic system are also selectively hidden from view for security reasons. Any movement of a nuclear source is detected by strength and duration radiation signal data which is stored in the microprocessor memory. This data may be removed from the processor and read out by a data key means.

公开(公告)号：US4931646A

公开(公告)日：1990-06-05

申请号：US336455

申请日：1989-03-17

申请人： Walter Koechner ,  Deborah R. Van Wyck ,  Garry B. Spector ,  Tom McCollum

发明人： Walter Koechner ,  Deborah R. Van Wyck ,  Garry B. Spector ,  Tom McCollum

IPC分类号： G01T1/20 ,  G01T5/08

CPC分类号： G01T1/201 ,  G01T1/2008

摘要： A multichannel coincidence nuclear detector system for spectral charactertion of nuclear radiation sources at a remote location. The system is designed to detect and classify the radiation source in unfriendly territory and to provide a radio link back to a friendly receiver user station. The sensing elements are comprised of a plurality of plastic scintillator fiber sensors which may be several meters long and with each fiber having a different spectral sensitivity to gamma and neutron sources. Each of the scintillator fibers is connected to a transmitting optical fiber which may be 1 kilometer or more in length. The plurality of optical fibers transmit the optical signal generated by the radiation from a nuclear source impinging on the scintillator fibers to an electronic system. The electronic system is a sealed self contained battery operated device which is comprised of a photomuliplier detector and microprocessor based signal processing and data storage. The microprocessor compares the input signals from each scintillator fiber and determines the energy source. The data is stored in the microprocessor and may be interrogated by a radio frequency link to at a receiver station many kilometers away. The fiber sensors, optical fibers, and the electronics system including a transmitting antenna are all covertly positioned to prevent being observed by an unauthorized person.

摘要翻译： 用于远程位置的核辐射源的光谱表征的多通道重合核探测器系统。 该系统旨在检测和分类不友好地区的辐射源，并将无线电链路提供回友好的接收机用户站。 感测元件由多个塑料闪烁体光纤传感器组成，其可以是几米长，并且每个光纤对伽马和中子源具有不同的光谱灵敏度。 每个闪烁体光纤连接到长度可能为1公里或更长的发送光纤。 多个光纤将来自入射到闪烁体光纤上的核辐射的辐射产生的光信号传输到电子系统。 电子系统是一种密封的自包含电池供电装置，由光电检测器和基于微处理器的信号处理和数据存储组成。 微处理器比较来自每个闪烁体光纤的输入信号并确定能量源。 数据存储在微处理器中，并且可以通过射频链路询问到距离许多公里的接收站。 包括发射天线的光纤传感器，光纤和电子系统都被隐蔽定位以防止被未经授权的人员观察到。