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摘要:
武威和兰州重离子加速器使用回旋加速器作为其注入器。回旋加速器为该装置的同步加速器提供10 µA的碳离子束流以满足其物理需求。而径向探针则是安装在回旋加速器内部实现束流流强和圈图测量的重要束诊元件。径向靶头上的束流信息经前端电子学拾取后会进一步进入数据采集系统，最终实现回旋加速器的束流流强和圈图测试。其中，径向探针的前端电子学采用皮安表，数据采集系统基于实时操作系统和FPGA技术。介绍了径向探针的机械结构设计，并分析了探头有无水冷结构的热结构；描述了控制系统软硬件架构，可以实现10 kHz的数据和位置信息的同步采集。最后，还介绍了探针机械和控制系统的实验室测试和验收标准以及在束测量结果。
Abstract:The cyclotron is designed as the injector of the Heavy Ion Medical Machines (HIMMs) in Wuwei city and Lanzhou city, China. It provides 10 µA carbon ion beams to fulfill the accumulation requirement in the following synchrotron. Four picoammeters acquire the beam current signals gathered by the radial detectors; meanwhile, the beam time structure is measured with Field Programmable Gate Arrays and a real-time operating system. This paper introduces the mechanical design of the radial detectors and further provides the thermal structure analysis result of probe tips with and without water cooling. Moreover, the hardware and software architecture of the control system for this detector is described, including the motion control and data acquisition system, which can implement simultaneous acquisition of beam current data and position at more than 10 kS/s. At last, the laboratory test and acceptance scheme of both mechanical and control systems are listed, and the beam current and turn pattern measurement results at HIMMs are presented in this paper.
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Key words:
- HIMM /
- cyclotron /
- radial detector /
- modularity /
- OPC UA
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Figure 4. Thermal structural analysis of the radial probe without water-cooling design
Figure 5. Thermal structural analysis of the radial probe with water-cooled design during the scanning process of the probe
Figure 10. Beam current measurement at a fixed position (150 mm from the cyclotron center)
Figure 11. Beam current measurement during the motion period (150 mm and 750 mm from the cyclotron center)
Table 1. Size of the integral and differential target tips
tip No. tip name size/mm 1 integral tip 40 2 differential tip−top 12 3 differential tip−middle 12 4 differential tip−bottom 12 
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[1] Yang Jiancheng, Shi Jianchun, Chai Weiping, et al. Design of a compact structure cancer therapy synchrotron[J]. Nuclear Instruments and Methods in Physics Research Section A:Accelerators, Spectrometers, Detectors and Associated Equipment, 2014, 756: 19-22. [2] Chai Weiping, Yang Jiancheng, Xia Jiawen, et al. Stripping accumulation and optimization of HIMM synchrotron[J]. Nuclear Instruments and Methods in Physics Research Section A:Accelerators, Spectrometers, Detectors and Associated Equipment, 2014, 763: 272-277. doi: 10.1016/j.nima.2014.05.117 [3] Shi Jian, Yang Jiancheng, Xia J W, et al. Heavy ion medical machine (HIMM) slow extraction commissioning[J]. Nuclear Instruments and Methods in Physics Research Section A:Accelerators, Spectrometers, Detectors and Associated Equipment, 2019, 918: 76-81. [4] Hao Huanfeng. Design and development of a 7MeV/U heavy ion cyclotron[D]. Lanzhou: University of Chinese Academy of Sciences, 2014 [5] Kleeven W. Some examples of recent progress of beam-dynamics studies for cyclotrons[C]//Proceedings of the 21st International Conference on Cyclotrons and Their Applications. 2016: 244-250. [6] Baumgarten C. Beam based calibration measurements at the PSI cyclotron facility[C]//Proceedings of the 21st International Conference on Cyclotrons and Their Applications. 2016: 342-344. [7] Sakamoto N, Fukunishi N, Kase M, et al. Acceleration of polarized deuteron beams with RIBF cyclotrons[C]//Proceedings of the 21st International Conference on Cyclotrons and Their Applications. 2016: 145-148. [8] Guan Fengping, Xie Huaidong, Wen Lipeng, et al. The development of radial probe for CYCIAE-100[C]//Proceedings of the 20th International Conference on Cyclotrons and Their Applications. 2013: 165-167. [9] Rao S S. Formulation and solution procedure[M]//Rao S S. The Finite Element Method in Engineering. 6th ed. Amsterdam: Elsevier, 2017: 505-522. [10] NI. LabVIEW High-Performance FPGA Developer’s Guide[EB/OL]. (2020-10-05). https://www.ni.com/zh-cn/support/documentation/supplemental/13/the-ni-labview-high-performance-fpga-developer-s-guide.html. [11] NI. NI LabVIEW for CompactRIO developer’s guide[EB/OL]. (2023-08-06). https://www.ni.com/pdf/products/us/fullcriodevguide.pdf. [12] NI. cRIO-9075 and cRIO-9076 user manual and specifications[EB/OL]. (2023-06-27). https://www.ni.com/docs/zh-CN/bundle/crio-9075-9076-seri/resource/375650d.pdf. [13] NI. cRIO-9065 specifications[EB/OL]. (2023-08-14). https://www.ni.com/docs/zh-CN/bundle/crio-9065-specs/page/specs.html. [14] NI. NI-9215 specifications[EB/OL]. (2023-08-14). https://www.ni.com/docs/zh-CN/bundle/ni-9215-specs/page/specs.html. [15] NI. NI-9411 specifications[EB/OL]. (2023-07-20). https://www.ni.com/docs/zh-CN/bundle/ni-9411-specs/page/specs.html. [16] AKM synchronous servomotors[EB/OL]. (2022-04-28). https://www.kollmorgen.cn/sites/default/files/akm/documentation/installation//AKM%20Installation%20Manual%20EN%20Rev%2006-2008.pdf. [17] Li Min. The design and implementation of front-end control system of beam diagnostics for HIMM[D]. Lanzhou: Institute of Modern Physics, University of Chinese Academy of Sciences, 2015 [18] Huang Rui. Research on key technology of PLC programming environment development supporting client-edge-cloud collaboration[D]. Wuhan: Huazhong University of Science and Technology, 2022 [19] Wu Jianxin. Design and implementation of satellite telemetry data processing system based on XML technology[D]. Xi’an: Xidian University, 2019 [20] Huang Zhixin. Design and implementation of an information collection subsystem for operator cloud[D]. Beijing: Beijing University of Posts and Telecommunications, 2020 -
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