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公开(公告)号:US20070012879A1
公开(公告)日:2007-01-18
申请号:US11195726
申请日:2005-08-03
Applicant: Louis Testardi
Inventor: Louis Testardi
IPC: G01T1/20
Abstract: A radiation detection device, system, and method for use in homeland security is disclosed. The device is portable and includes a photomultiplier tube (PMT) connected to an end of a substantially rigid thin-walled aluminum tube. Inside the aluminum tube, a substantially straight scintillating fiber is disposed (so as to be shielded from ambient light), and an end of the scintillating fiber is optically coupled to the PMT. A voltage output signal from the PMT is signal-processed with a filter to remove high-frequency noise (which may arise from solar radiation spikes) and fed to a voltage-responsive alarm or signalling device. The portable device is employed, for example, by responders to nuclear incidents and is packaged as a small wearable hands-free and eyes-free unit with a continuous in-use self-testing feature.
Abstract translation: 公开了一种用于国土安全的辐射检测装置,系统和方法。 该装置是便携式的,并且包括连接到基本刚性的薄壁铝管的端部的光电倍增管(PMT)。 在铝管内部,设置基本上直的闪烁纤维(以防环境光),闪烁光纤的一端光耦合到PMT。 来自PMT的电压输出信号用滤波器进行信号处理,以去除高频噪声(可能由太阳辐射尖峰引起)并馈送到电压响应报警或信号装置。 便携式设备例如由核事故响应者使用,并被包装为具有连续使用自我测试功能的小型可穿戴式免提和无眼睛单元。