GSI上非相对论离子OTR成像的可行性
Feasibility of OTR imaging of non-relativistic ions at GSI
摘要：
首次对利用11.4 ~ 300 MeV/μ离子束通过单个金属导电板时产生的光学渡越辐射（OTR）用于GSI/Darmstadt最小拦截束流剖面监测器的可行性进行了评估。虽然这些都是非相对论性的光束，他们的β和γ值是类似的80千电子伏的电子束成像研究之前所做的CTF 3注入器。随着预期的109至1011粒子每脉冲的束强度和预测的OTR的电荷平方依赖性，离子电荷状态成为光子产生的关键因素。来自在视频场时间上积分的离子电荷的OTR信号应当与CTF 3电子情况相当或大于CTF 3电子情况。这些信号强度将允许进行一系列实验，这些实验将进一步阐明这种技术的工作机制。
英文摘要：
The feasibility of using the optical transition radiation (OTR) generated as a 11.4- to 300-MeV/μion beam passes through a single metal conducting plane for a minimally intercepting beam profile monitor for GSI/Darmstadt has been evaluated for the first time. Although these are non-relativistic beams, their beta and gamma values are similar to the 80-keV electron-beam imaging studies previously done on the CTF3 injector. With anticipated beam intensities of 109 to 1011 particles per pulse and the predicted charge-squared dependence of OTR, the ion charge state becomes a critical factor for photon production. The OTR signal from the ion charge integrated over the video field time should be comparable to or larger than the CTF3 electron case. These signal strengths will allow a series of experiments to be done that should further elucidate the working regime of this technique.
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