| Paper | Title | Page |
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| MOP006 | The Design and Simulation on the Extraction System for CYCIAE-50 | 35 |
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| A 50 MeV H− compact cyclotron (CYCIAE-50) as a proton irradiation facility is under construction at China Institute of Atomic Energy. The proton beam with the energy of 30 MeV to 50 MeV and the current of 10 uA will be extracted by a single stripping extraction system. In order to reduce the beam loss, the combination magnet is fixed inside the magnetism yoke. The positions of stripping points for the different extraction energy are calculated and the extracted beam trajectories after stripping foil are simulated in detail in this paper. The extracted beam distribution after stripping foil and the extracted beam characters will be studied in this paper. The beam parameters after extraction will be given by the extracting orbit simulation. The design on the whole stripping extraction system has been finished and will be presented in this paper. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP006 | |
| About • | paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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| MOP008 | Mechanical Design of Beam Lines for a 230 MeV SC Cyclotron at CIAE | 42 |
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Funding: This work was supported in part by the National Natural Science Foundation of China under Grant 11475269 and 11375274. To develop the proton beam transfer system which used in the field of proton therapy, the mechanical design of proton beam lines based on the CYCIAE-230 has been finished at the China Institute of Atomic Energy (CIAE). The proton beam transfer system includes the beam lines, beam dump, gantry, nozzle, couch, image guidance system, etc. Two beam lines are designed at CIAE this moment. One is for the nozzle system, the other is for the beam dump. The beam lines include four systems: the energy selection system, the beam transportation systems, gantry system, beam dump. The beam lines are very compact in order to match the beam optics and the space limitation. The gantry can be rotated ±180°. There are several key components in beam lines, such as magnets, degrader, beam diagnostics component, vacuum component, etc. The designed mechanical tolerance of the magnets is limited less than 0.1 mm. There are at least four targets on each magnets for collimation and all the components can be adjusted in three dimensions. The magnets are being manufactured now. The mechanical design of proton beam lines based on the CYCIAE-230 will be presented in this paper. |
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| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP008 | |
| About • | paper received ※ 15 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020 | |
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| MOP010 | A 50 MeV Proton Beam Line Design | 45 |
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| The cyclotron Center at the China Institute of Atomic Energy (CIAE) is now developing a medium-energy proton irradiation device that provides a proton beam with an energy range of 30 MeV to 50 MeV to simulate a space proton radiation environment, which has a significant impact on spacecraft. A beam transport line is designed for irradiation effect study based on the 50 MeV compact cyclotron, which requires continuous adjustment of the beam energy and the beam spot on the target requires high uniformity. The proton beam extracted from the cyclotron is adjusted to the energy required by using the degrader, then the proton beam is bended and focused. In order to obtain uniform large-diameter beam spot on the target, a wobbling magnet is installed on the beam line to uniformly sweep the proton beam on the target and finally obtain the proton beam with energy of 30 MeV - 50 MeV, current of 10 uA and beam spot of 20 cm * 20 cm on the target. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP010 | |
| About • | paper received ※ 15 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020 | |
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |