A study of pickup and signal processing for HLS-II bunch current measurement system
For the HLS-II bunch current measurement system, in order to obtain the absolute value of bunch current, the calibration factor should be determined by using DCCT. At the HLS storage ring, the stretch effect of bunch length is observed and the change rate is about 19% when the bunch current decays o...
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| Veröffentlicht in: | Chinese physics C 2013-09, Vol.37 (9), p.80-83 |
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| container_title | Chinese physics C |
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| creator | 杨永良 马天骥 孙葆根 王季刚 邹俊颖 程超才 卢平 |
| description | For the HLS-II bunch current measurement system, in order to obtain the absolute value of bunch current, the calibration factor should be determined by using DCCT. At the HLS storage ring, the stretch effect of bunch length is observed and the change rate is about 19% when the bunch current decays over time and this will affect the performance of bunch current detection. To overcome the bunch stretch influence in the HLS-II bunch current measurement, an evaluation about pickup type and signal processing is carried out. Strip-line pickup and button pickup are selectable, and the theoretical analysis and demonstration experiment are performed to find out an acceptable solution for the bunch current measurement system at HLS-H. The experimental data analysis shows that the normalized calibration factor will change by about 27% when the bunch length changes by about 19% if using the button pickup and processing by peak value of bunch signal; the influence will be reduced to 2% less if adopting the strip-line pickup and integral. |
| doi_str_mv | 10.1088/1674-1137/37/9/097006 |
| format | Article |
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At the HLS storage ring, the stretch effect of bunch length is observed and the change rate is about 19% when the bunch current decays over time and this will affect the performance of bunch current detection. To overcome the bunch stretch influence in the HLS-II bunch current measurement, an evaluation about pickup type and signal processing is carried out. Strip-line pickup and button pickup are selectable, and the theoretical analysis and demonstration experiment are performed to find out an acceptable solution for the bunch current measurement system at HLS-H. 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| fulltext | fulltext |
| identifier | ISSN: 1674-1137 |
| ispartof | Chinese physics C, 2013-09, Vol.37 (9), p.80-83 |
| issn | 1674-1137 0254-3052 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1793258877 |
| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link; Alma/SFX Local Collection |
| subjects | Acceptability Buttons Calibration Data processing DCCT Decay rate HLS储存环 Integrals Signal processing 信号处理 实验数据分析 校准因子 测量系统 电流测量 皮卡 |
| title | A study of pickup and signal processing for HLS-II bunch current measurement system |
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