Simulation of direct injection scheme for RFQ linac
Simulation of direct injection scheme for RFQ linac
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RFQ 直线加速器直喷方案仿真
DOI：
10.1063/1.1430044
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发表时间：
2002
影响因子：
1.6
通讯作者：
T. Hattori
中科院分区：
文献类型：
--
作者：
M. Okamura;T. Katayama;R. Jameson;T. Takeuchi;T. Hattori
提出了一种从激光离子源到RFQ的新的高效注入方法，并在日本理化学研究所进行了测试。激光等离子体在RFQ入射之前被诱导，并被直接注入RFQ通道。为了理解这一新方案，针对RFQ入口处的粒子跟踪模拟研究，在逼真的三维电场图中引入了三维(3D)空间电荷效应。根据束流跟踪计算，预测的电流比实验值要小。为了获得更好的模拟精度，必须充分描述电子的运动。
A new efficient injection method from a laser ion source to a RFQ was proposed and is being tested in RIKEN (The Institute of Physical and Chemical Research, Japan). Laser plasma is induced just before the entrance of the RFQ and is injected directly into the RFQ channel. In order to understand this new scheme, a particle tracking simulation study, which focused on the entrance of the RFQ, has been started with three-dimensional (3D) space charge effect in a realistic 3D electric field map. According to the beam tracking calculation, the predicted currents are smaller than experimentally obtained values. To obtain better accuracy of the simulation, motion of electrons should be described adequately.