CYCLOTRONS2022 - List of Authors (Ji, L.Y.)

Paper	Title	Page
MOAO02	The Commissioning of a 230 MeV Superconducting Cyclotron CYCIAE-230	15
	C. Wang, H.R. Cai, W.F. Fu, A.L. He, M.Z. Hu, B. Ji, L.Y. Ji, X.L. Jia, Y. Jia, T.Y. Jiang, J. Liu, J.Y. Liu, P. Liu, Z.W. Liu, X. Mu, S. Pei, G.F. Song, Q.Q. Song, F. Wang, J.Y. Wei, L.P. Wen, J.S. Xing, Z.G. Yin, D.Z. Zhang, S.P. Zhang, T.J. Zhang, X. Zheng, H. Zhou, P.F. Zhu, X.F. Zhu CIAE, Beijing, People’s Republic of China
	There are very strong demands for proton accelera-tors in medium energy range in recent years due to the fast growth of proton therapy and the space science in China. For the applications of proton therapy and pro-ton irradiation, the energy range of proton beam is usually from 200MeV to 250MeV, or even higher for astronavigation [1]. An R&D project for constructing a 230MeV superconducting cyclotron (CYCIAE-230) has been initiated at China Institute of Atomic Energy (CIAE) since Jan 2015. In July of 2016, after the fund-ing was approved by China National Nuclear Corpora-tion (CNNC), the construction project was fully launched. In Dec 2019, the superconducting main magnet and the RF system were transferred to the new-ly built commissioning site. Then, the RF commission-ing, ion source and central region test were performed even during the pandemic in early 2020. In September 2020, after finishing the commissioning tests of all subsystems, the beam was reached the extraction channel but with very low efficiency. Since then, with more efforts on beam diagnostics, the fine tuning of the beam phase and the adjusting of the superconduct-ing coil have been proven to be useful to get higher beam extraction efficiency ~55%. In this paper, the commissioning of the key components, including the main magnet, SC coils, internal ion source and central region, extraction system, etc, as well as the commis-sioning progress of the machine CYCIAE-230 will be presented.
	Slides MOAO02 [10.305 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOAO02
About •	Received ※ 24 January 2023 — Revised ※ 25 January 2023 — Accepted ※ 09 February 2023 — Issue date ※ 10 June 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPO009	Study on the Extraction of a Compact Cyclotron for BNCT	73
	L.Y. Ji, S. An, T.J. Bian, F.P. Guan, S.M. Wei, H.D. Xie, J.S. Xing CIAE, Beijing, People’s Republic of China
	An 18 MeV, 1 mA H⁻ compact cyclotron is under design at China Institute of Atomic Energy (CIAE). The proton beam bombards a beryllium target, producing high-flux neutron beam for Boron Neutron Capture Therapy (BNCT). Stripping extraction is adopted in this cyclotron. The position of the stripping point affects the trajectory and beam quality of the extracted beam. In this paper, we use orbit-tracking method to simulate the beam trajectory and emittance with different positions and tilt angles of stripping foil, and adopt the extraction point whose radius is 53.6 cm, azimuth is 57° and the tilt angle of the stripping foil is 15°.
	Poster MOPO009 [1.696 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO009
About •	Received ※ 31 December 2022 — Revised ※ 28 January 2023 — Accepted ※ 09 February 2023 — Issue date ※ 07 March 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRAO02	Feasibility Study on 10 MW-Class Ultra-High Power Cyclotron	359
	T.J. Bian, S. An, F.P. Guan, L.Y. Ji, S.M. Wei CIAE, Beijing, People’s Republic of China
	10MW-class ultra-high power cyclotron (UHPC) has great application prospects in cutting-edge sciences, neutron source, advanced energy and advanced material, etc. So far, Cyclotron with average beam power of 10 MW still have some bottleneck problems. Beam energy and current of a high-power cyclotron is typically less than 800MeV and 3mA. In this paper, bottleneck problems of UHPC are analysed, and then a preliminary design of UHPC-10MW is presented.
	Slides FRAO02 [15.273 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-FRAO02
About •	Received ※ 31 December 2022 — Revised ※ 12 January 2023 — Accepted ※ 07 July 2023 — Issue date ※ 20 July 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

The Commissioning of a 230 MeV Superconducting Cyclotron CYCIAE-230

15

C. Wang, H.R. Cai, W.F. Fu, A.L. He, M.Z. Hu, B. Ji, L.Y. Ji, X.L. Jia, Y. Jia, T.Y. Jiang, J. Liu, J.Y. Liu, P. Liu, Z.W. Liu, X. Mu, S. Pei, G.F. Song, Q.Q. Song, F. Wang, J.Y. Wei, L.P. Wen, J.S. Xing, Z.G. Yin, D.Z. Zhang, S.P. Zhang, T.J. Zhang, X. Zheng, H. Zhou, P.F. Zhu, X.F. Zhu
CIAE, Beijing, People’s Republic of China

There are very strong demands for proton accelera-tors in medium energy range in recent years due to the fast growth of proton therapy and the space science in China. For the applications of proton therapy and pro-ton irradiation, the energy range of proton beam is usually from 200MeV to 250MeV, or even higher for astronavigation [1]. An R&D project for constructing a 230MeV superconducting cyclotron (CYCIAE-230) has been initiated at China Institute of Atomic Energy (CIAE) since Jan 2015. In July of 2016, after the fund-ing was approved by China National Nuclear Corpora-tion (CNNC), the construction project was fully launched. In Dec 2019, the superconducting main magnet and the RF system were transferred to the new-ly built commissioning site. Then, the RF commission-ing, ion source and central region test were performed even during the pandemic in early 2020. In September 2020, after finishing the commissioning tests of all subsystems, the beam was reached the extraction channel but with very low efficiency. Since then, with more efforts on beam diagnostics, the fine tuning of the beam phase and the adjusting of the superconduct-ing coil have been proven to be useful to get higher beam extraction efficiency ~55%. In this paper, the commissioning of the key components, including the main magnet, SC coils, internal ion source and central region, extraction system, etc, as well as the commis-sioning progress of the machine CYCIAE-230 will be presented.

Slides MOAO02 [10.305 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOAO02

About •

Received ※ 24 January 2023 — Revised ※ 25 January 2023 — Accepted ※ 09 February 2023 — Issue date ※ 10 June 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPO009

Study on the Extraction of a Compact Cyclotron for BNCT

73

L.Y. Ji, S. An, T.J. Bian, F.P. Guan, S.M. Wei, H.D. Xie, J.S. Xing
CIAE, Beijing, People’s Republic of China

An 18 MeV, 1 mA H⁻ compact cyclotron is under design at China Institute of Atomic Energy (CIAE). The proton beam bombards a beryllium target, producing high-flux neutron beam for Boron Neutron Capture Therapy (BNCT). Stripping extraction is adopted in this cyclotron. The position of the stripping point affects the trajectory and beam quality of the extracted beam. In this paper, we use orbit-tracking method to simulate the beam trajectory and emittance with different positions and tilt angles of stripping foil, and adopt the extraction point whose radius is 53.6 cm, azimuth is 57° and the tilt angle of the stripping foil is 15°.

Poster MOPO009 [1.696 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO009

About •

Received ※ 31 December 2022 — Revised ※ 28 January 2023 — Accepted ※ 09 February 2023 — Issue date ※ 07 March 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRAO02

Feasibility Study on 10 MW-Class Ultra-High Power Cyclotron

359

T.J. Bian, S. An, F.P. Guan, L.Y. Ji, S.M. Wei
CIAE, Beijing, People’s Republic of China

10MW-class ultra-high power cyclotron (UHPC) has great application prospects in cutting-edge sciences, neutron source, advanced energy and advanced material, etc. So far, Cyclotron with average beam power of 10 MW still have some bottleneck problems. Beam energy and current of a high-power cyclotron is typically less than 800MeV and 3mA. In this paper, bottleneck problems of UHPC are analysed, and then a preliminary design of UHPC-10MW is presented.

Slides FRAO02 [15.273 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-FRAO02

About •

Received ※ 31 December 2022 — Revised ※ 12 January 2023 — Accepted ※ 07 July 2023 — Issue date ※ 20 July 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)