基于FPGA的HIMM同步高频信号源设计

李世龙; 丛岩; 许少凡; 张瑞锋; 韩小东; 仪孝平

doi:10.11884/HPLPB201830.180116

基于FPGA的HIMM同步高频信号源设计

doi: 10.11884/HPLPB201830.180116

1.
中国科学院近代物理研究所, 兰州 730000
2.
兰州大学信息科学与工程学院, 兰州 730000

基金项目:

国家自然科学基金青年基金项目 11505252

详细信息

作者简介:
李世龙(1988－), 男，硕士，从事加速器高频技术研究；lishilong@impcas.ac.cn

通讯作者:
丛岩(1982－), 男，博士，从事核物技术及应用研究；congyan@impcas.ac.cn

中图分类号: TL56
计量
- 文章访问数: 975
- HTML全文浏览量: 228
- PDF下载量: 141
- 被引次数: 0
出版历程
- 收稿日期: 2018-04-20
- 修回日期: 2018-07-03
- 刊出日期: 2018-10-15

Heavy ion medical machine synchrotron RF signal source design based on Field-Programmable Gate Array

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2.
School of Information Science and Engineering, Lanzhou University, Lanzhou 730000, China

摘要

摘要: 针对医用重离子加速器装置(HIMM)同步加速器对于高频系统不同能量波形输出的需求，设计实现可输出不同能量对应腔体电压及偏磁电流波形的同步信号源。该系统以ARTERA公司FPGA作为核心处理元件，接收并处理多组腔体电压及偏磁电流波形文件，同时以DAC作为输出单元，通过接收同步光触发信号实现不同能量对应给定波形信号的无缝切换及同步输出，完成HIMM同步高频信号源的设计。测试结果表明，该信号源工作稳定，可实现各种不同能量对应波形的无缝切换及同步输出，其性能完全满足HIMM系统对碳离子捕获加速的要求。相比于商业任意波形发生器产品，该系统价格低廉，且模块化的设计易于集成，可广泛应用于其他需产生任意波形信号的场合。
- FPGA /
- 腔体电压 /
- 偏磁电流 /
- 无缝切换 /
- 同步信号源
Abstract: To meet the needs of different beam energy waveforms output of heavy ion medical machine (HIMM) synchrotron RF system, a synchronous signal source that can output different cavity voltage and bias current waveforms has been designed and realized. The ARTERA's FPGA is used as the core processing element to receive and process multiple sets of cavity voltage and bias current waveform files. And DAC is used to output waveforms after receiving synchronous optical trigger signal. The system enables seamless switching of different beam energy. The results show that the signal source is stable and can realize seamless switching and synchronized output waveforms. Its performance fully meets the requirements of the HIMM system for accelerating and capturing carbon ions. Compared with commercial arbitrary waveform generator, this system is cheaper and the modular design is easy to integrate. It can also be widely used in other occasions which need arbitrary waveform signals.
- FPGA /
- cavity voltage /
- bias current /
- seamless switching /
- synchronous signal source

HTML全文

图 1 HIMM同步高频信号源总体框图

Figure 1. Block diagram of the HIMM synchrotron RF signal source

下载: 全尺寸图片幻灯片

图 2 一组腔体电压及偏磁电压波形

Figure 2. One set of cavity voltage and bias voltage waveforms

下载: 全尺寸图片幻灯片

图 3 波形数据读取方式

Figure 3. Waveform data read mode

下载: 全尺寸图片幻灯片

图 4 事例解析逻辑框图

Figure 4. Event analysis logic diagram

下载: 全尺寸图片幻灯片

图 5 测试平台

Figure 5. Test platform

下载: 全尺寸图片幻灯片

图 6 波形无缝切换测试

Figure 6. Waveform seamless switching test

下载: 全尺寸图片幻灯片

表 1 波形文件样例

Table 1. Example of waveform file

running time/s	voltage value /V
0	0.098 38
0.002 048	0.098 38
0.004 096	0.098 38
0.006 144	0.098 38
… …	… …
2.463 744	4.650 75
4.513 792	4.650 77
… …	… …
4.771 84	0

下载: 导出CSV

表 2 信号源精度测试结果

Table 2. Result of signal source accuracy test

set value/V	cavity voltage/V	bias voltage/V
0.5	0.504	0.503
1.0	1.003	1.002
1.5	1.503	1.502
2.0	2.001	2.002
2.5	2.502	2.502
3.0	3.002	3.001
3.5	3.502	3.501
4.0	4.002	4.001
4.5	4.500	4.500
5.0	5.000	5.000

下载: 导出CSV

参考文献(10)

[1]	宋明涛, 詹文龙, 魏宝文, 等. 重离子治癌装置研究[J]. 原子核物理评论, 2001, 18(2): 116-119. https://www.cnki.com.cn/Article/CJFDTOTAL-HWDT200102009.htm Song Mingtao, Zhan Wenlong, Wei Baowen. et al. Rotating gantry studies for heavy ion tumor therapy in Lanzhou. Nuclear Physics Review, 2001, 18(2): 116-119 https://www.cnki.com.cn/Article/CJFDTOTAL-HWDT200102009.htm
[2]	肖国青, 张红, 李强, 等. 中国科学院近代物理研究所重离子束治癌进展[J]. 原子核物理评论, 2007, 24(2): 85-88. https://www.cnki.com.cn/Article/CJFDTOTAL-HWDT200702000.htm Xiao Guoqing, Zhang Hong, Li Qiang. et al. Progresses of heavy-ion cancer therapy in IMP. Nuclear Physics Review, 2007, 24(2): 85-88 https://www.cnki.com.cn/Article/CJFDTOTAL-HWDT200702000.htm
[3]	夏佳文, 詹文龙, 魏宝文, 等. 兰州重离子加速器冷却储存环[J]. 强激光与粒子束, 2008, 20(11): 1787-1794. http://www.hplpb.com.cn/article/id/3753 Xia Jiawen, Zhan Wenlong, Wei Baowen, et al. Heavy ion cooler-storage-ring synchrotron in Lanzhou. High Power Laser and Particle Beams, 2008, 20(11): 1787-1794 http://www.hplpb.com.cn/article/id/3753
[4]	许哲, 王春晓, 段亚娟, 等. 冷却储存实验环功率源的设计与计算[J]. 强激光与粒子束, 2009, 21(3): 443-446. http://www.hplpb.com.cn/article/id/3950 Xu Zhe, Wang Chun-xiao, Duan Yajuan, et al. Design of RF generator at cooling storage experimental ring. High Power Laser and Particle Beams, 2009, 21(3): 443-446 http://www.hplpb.com.cn/article/id/3950
[5]	丛岩, 许哲, 李刚, 等. HIRFL数字化高频低电平控制系统研究[J]. 原子核物理评论, 2012, 29(3): 248-252. https://www.cnki.com.cn/Article/CJFDTOTAL-HWDT201203008.htm Cong Yan, Xu Zhe, Li Gang, et al. Research of digital low level radio frequency control system for HIRFL. Nuclear Physics Review, 2012, 29(3): 248-252 https://www.cnki.com.cn/Article/CJFDTOTAL-HWDT201203008.htm
[6]	张同宣, 赵玉彬, 尹成科, 等. 上海光源数字化低电平控制系统的硬件设计与实现[J]. 强激光与粒子束, 2008, 20(6): 1048-1052. http://www.hplpb.com.cn/article/id/3632 Zhang Tongxuan, Zhao Yubin, Yin Chengke, et al. Design and realization of digital low level RF system for SSRF. High Power Laser and Particle Beams, 2008, 20(6): 1048-1052 http://www.hplpb.com.cn/article/id/3632
[7]	张志文, 王凤文, 许哲, 等. 兰州重离子加速器冷却储存环高频加速系统[J]. 原子能科学技术, 2006, 40(4): 490-493. https://www.cnki.com.cn/Article/CJFDTOTAL-YZJS200604024.htm Zhang Zhiwen, Wang Fengwen, Xu Zhe, et al. RF accelerating station for heavy ion research facility at Lanzhou-cooling storage ring. Atomic Energy Science and Technology, 2006, 40(4): 490-493 https://www.cnki.com.cn/Article/CJFDTOTAL-YZJS200604024.htm
[8]	PCI Special Interest Group. PCI Local Bus Specification Revision 2. 3[Z/OL]. 2002. http://pcisig.com/pci-local-bus-specification-revision-23.
[9]	EDA先锋工作室. Altera FPGA/CPLD设计: 高级篇[M]. 北京: 人民邮电出版社, 2005: 50-150. EDA leader. Altera FPGA/CPLD design: Senior Part. Beijing: Posts and Telecom Press, 2005: 50-150
[10]	李世龙. 4GSPS多通道高速数据采集模块硬件设计[D]. 成都: 电子科技大学, 2014: 34-37. Li Shilong. 4GSPS multi-channel high-speed data acquisition module hardware design. Chengdu: University of Electronic Science and Technology of China, 2014: 34-37