Indirect estimations of energy and energy spread for a compact free electron laser-terahertz pre-injector using RF measuring parameters
Indirect estimations of energy and energy spread for a compact free electron laser-terahertz pre-injector using RF measuring parameters
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使用射频测量参数间接估计紧凑型自由电子激光太赫兹预注入器的能量和能量扩散
DOI:
10.1016/j.nima.2021.165775
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发表时间:
2021-09
期刊:
影响因子:
--
通讯作者:
Ping Tan
中科院分区:
文献类型:
--
作者:
Tongning Hu;Junyang Li;Yuanji Pei;Guangyao Feng;Hongjie Xu;Bing Zeng;Ping Tan
The pre-injector with an external cathode and two independent tunable cavities (EC-ITC) can develop the high-power terahertz oscillator with a compact layout. Adequate characterizations for the driven beam are of importance to promote the application of the ITC-based injector . Based on the theories of RF coupling and RF-induced motions, indirect evaluations for energy and energy spread of the pre-injector via online elements were investigated while extra devices and complicated technologies were avoided. Verification experiments were also conducted at a testing bench refitted from an existing ITC-based injector. To a certain extent, the RF-based diagnostics presented effective supplements to compact beam injectors.
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