Gamma and neutron radiation detector

一种辐射检测器、伽马辐射的技术，应用在伽马和中子辐射检测器领域，能够解决高总费用、没有提供识别、不能容易地使用等问题

Inactive Publication Date: 2007-01-10
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most existing combinations of simultaneous gamma and neutron detection utilize material combinations that do not provide proper identification, cannot be readily used, and / or have a high total cost of ownership

Method used

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  • Gamma and neutron radiation detector
  • Gamma and neutron radiation detector
  • Gamma and neutron radiation detector

Examples

Experimental program
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Embodiment Construction

[0022] figure 1 A first embodiment is shown which represents a first integrated sensor approach, ie, optically coupling two scintillators, as compared to a second approach with separate sensors discussed later in the Second Approach section below.

[0023] first method

[0024] exist figure 1 In one version of the first approach shown, methods and systems for a detector that allow the use of a single sensing element 10 with optical coupling between two scintillators (12, 14) and dual material The method simultaneously detects gamma and neutron radiation.

[0025] In particular, figure 1 The gamma and neutron detectors described in , utilize two different luminescent scintillator materials (12, 14) (one for gamma detection 12 and one for neutron detection 14), a photosensitive element (see photomultiplier tube (PMT) 18), and electronics (not shown). When radiation collides with the scintillator, light is emitted and detected by the photosensitive element.

[0026] Electro...

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PUM

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Abstract

A sensing element (10) or detector activated by radiation comprising a first scintillator (12) activated by gamma radiation; and a neutron sensing layer (16) comprising a second scintillator (14) activated by neutron radiation.

Description

Background of the invention [0001] Due to increased terrorism there is a need for practical, high resolution gamma and neutron radiation detectors that can detect radioactive "dirty bombs" and other sources of radiation. Furthermore, hand-held or portable devices such as including Hand-held Radioisotope Identification Devices (HHRIID's) are in high demand. Newer standards such as ANSI N42.33 (Type I) and ANSI N42.34 are also specified due to increased performance requirements. [0002] Typical methods of gamma radiation spectroscopy utilize NaI, CsI, cadmium zinc telluride (CZT), bismuth germanate (BGO) or high purity (HP) germanium as direct detection or scintillator materials. A desired radiation detector capable of simultaneously detecting gamma and neutron radiation should exhibit improved functionality and identification performance, i.e., should be able to distinguish whether a suspect radiation is readily available and has a low total cost of ownership Naturally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/20G01T3/06
CPCG01T3/06G01T1/2008
Inventor T·A·克尼斯A·M·斯里瓦斯塔瓦S·J·杜克洛斯T·F·麦努尔蒂S·P·M·罗赖洛L·L·克拉克K·C·布尔A·伊文T·R·安德逊
Owner GENERAL ELECTRIC CO
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