In situ ions energy spectrum measurement using a diamond detector in laser - accelerated ions -plasma interaction
In situ ions energy spectrum measurement using a diamond detector in laser - accelerated ions -plasma interaction
复制标题
DOI：
10.1016/j.nima.2021.166191
复制
发表时间：
2021-12
期刊：
影响因子：
--
通讯作者：
Zexian Zhou;B. Guo;R. Cheng;Xianming Zhou;Yong-tao Zhao;Xing Wang;J. Ren;Z. Deng;Haixia Li-H
中科院分区：
文献类型：
--
作者：
Zexian Zhou;B. Guo;R. Cheng;Xianming Zhou;Yong-tao Zhao;Xing Wang;J. Ren;Z. Deng;Haixia Li-H
超高功率激光驱动的强流离子束在其基础物理和潜在应用方面是非常有趣的。本文介绍了一项新的实验结果，即用金刚石探测器，用飞行时间法原位测量了激光加速质子和碳离子的能谱。发现电磁脉冲对探测器系统有明显的干扰，并提出了一种数学处理方法来提高TOF中离子的可分辨性。给出了质子在稠密等离子体中能量损失的实验证据，并与非原位能量损失结果进行了比较。
Intense ion beams driven by ultra-high-power lasers are very interesting in terms of their elementary physics and potential applications. We introduce a new experimental result that the energy spectra of laser-accelerated protons and carbon ions are measured in situ by time-of-flight method using a diamond detector. An obvious interference on the detector system from the electromagnetic pulse is found and we propose a mathematical processing method to improve the distinguishability of ions in TOF. The experimental evidence of the energy loss of protons in dense plasma is presented and the comparison with the ex situ energy loss result is given too.