Development of a high performance standoff radiation detection system (SORD)

高性能防区外辐射探测系统（SORD）的开发

• 批准号: 479768-2015
• 负责人: Peng, Hao
• 金额: $ 1.82万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=580268
• 关键词: Development; performance; standoff; radiation; detection

The detection of nuclear threat is a critical component of Canada's national security network. Being able to detect small amounts of radiation at large distances is especially important in a wide range of applications including homeland security, customs and border protection, emergency response to nuclear accidents, and military tasks on the battlefield. Tools currently exist but they are sub-optimal. In order to optimally use the manpower and resources currently available for radiological response, a highly sensitive radiation detection device, which can rapidly determine the type and location of the radiation source term from a distant location (~10-50 meters), is desired. The basic requirements for such a device are high sensitivity, high dynamic range, low mass, portable unit with spectrographic capabilities among others. Many of these requirements are shared with radiation technology that is widely used in medical physics imaging applications and as a result, there is an excellent opportunity to capitalize on the decades of operational experience and optimization that has occurred in the medical physics area. Of particular interest is the fact that medical imaging techniques such as Positron Emission Tomography (PET) also require rapid acquisition of spectral and directional photon flux profiles in a confined space. These requirements translate into directional detection capability, high detection cross section to volume ratio, high-count rate capability and energy dispersive measurement, all of which map directly into the basic requirements of an Intelligent Radiation Mapping Device (IRMD). Our long-term goal is to develop a high performance standoff radiation detection system (SORDS) using novel scintillators and silicon photomultipliers (SiPMs), with unique depth-of-interaction (DOI) design and spatial localization algorithm. For this 6-month propjet, the deliverable is to prove the feasibility of a novel SiPM-based detector module.

探测核威胁是加拿大国家安全网络的重要组成部分。在国土安全、海关和边境保护、核事故应急响应以及战场上的军事任务等广泛应用中，能够远距离探测少量辐射尤为重要。目前有工具存在，但它们不是最优的。为了最大限度地利用目前可用于放射反应的人力和资源，需要一种高灵敏度的辐射探测装置，它可以从远处（~10-50米）快速确定辐射源的类型和位置。对这种设备的基本要求是高灵敏度、高动态范围、低质量、具有光谱功能的便携式设备等。其中很多