Fu Wenyong, Hu Chenman, Chen Ping, Zhou Rongyan, Li Ling
Nanyang Institute of Technology, Nanyang 473004, China.
College Department of Electronic and Information Engineering, Hengshui University, Hengshui 053000, China.
Sensors (Basel). 2024 Nov 24;24(23):7497. doi: 10.3390/s24237497.
A new pulse-dilated photomultiplier tube (PD-PMT) with sub-20 ps temporal resolution and associated drivers have been developed for use detection and signal amplification in the inertial confinement fusion (ICF) community. The PD-PMT is coupled to a transmission line output in order to provide a continuous time history of the input signal. Electron pulse dilation provides high-speed detection capabilities by converting incoming signals into a free-electron cloud and manipulating the electron signal with electric and magnetic fields. This velocity dispersion is translated into temporal separation after the electrons transit into a drift space. The free electrons are then detected by using conventional time-resolved methods and the effective temporal resolution is improved about 12 times. In order to accurately obtain the actual device input signal, we experimentally investigated the relationship between microchannel plate (MCP) gain and electron energy during the first collision. We report the measurements with the PD-PMT, and the error source of the amplitude of the compressed signal is analyzed, which provides a reference for subsequent accurate construction.
一种具有低于20皮秒时间分辨率的新型脉冲扩展光电倍增管（PD-PMT）及相关驱动器已被开发出来，用于惯性约束聚变（ICF）领域的信号检测和放大。PD-PMT与传输线输出相连，以提供输入信号的连续时间历程。电子脉冲扩展通过将输入信号转换为自由电子云，并利用电场和磁场操纵电子信号来提供高速检测能力。这种速度色散在电子进入漂移空间后转化为时间分离。然后使用传统的时间分辨方法检测自由电子，有效时间分辨率提高了约12倍。为了准确获取实际器件的输入信号，我们通过实验研究了微通道板（MCP）增益与首次碰撞时电子能量之间的关系。我们报告了使用PD-PMT的测量结果，并分析了压缩信号幅度的误差来源，为后续的精确构建提供了参考。
