SAP2023 - List of Authors (Wei, S.M.)

Paper	Title	Page
MOCYA01	Study of the Key Physics Problems in 10mA-class High Current Cyclotron	9
	T.J. Bian, S. An, F.P. Guan, L.Y. Ji, S.M. Wei CIAE, Beijing, People’s Republic of China
	Funding: National Natural Science Foundation of China (Grant No. 12105370) and the Scientific Research Program for Young Talent Elite Project of China National Nuclear Corporation (Grant No. FY212406000404). Proton beam with an average current of 10mA has many important applications in particle physics towards the intensity frontier, as well as in the advanced energy and material science. At present, superconducting linac is the mainstream of high current accelerator. As cyclotron has advantages of continuous beam structure, high beam/grid efficiency(60%~65% can be expected in superconducting ring cyclotron) and lower cost, cyclotron is also a potential candidate for future accelerator scheme with beam current of 10mA-class. Firstly, we will discuss the application prospect and motivation of 10mA-class high power cyclotron(10mA-HPC). Secondly, the key physics problems of 10mA-HPC are summarized, which includes strong space charge problems in low energy region, integer resonance crossing problems in high energy region and beam losses problems in extraction region. Thirdly, possible solutions for key physics problems and preliminary design of 10mA-HPC are proposed.
DOI •	reference for this paper ※ doi:10.18429/JACoW-SAP2023-MOCYA01
About •	Received ※ 30 June 2023 — Revised ※ 08 July 2023 — Accepted ※ 12 July 2023 — Issued ※ 30 May 2024
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPB005	Injection and Extraction for the BNCT High Intensity Proton Cyclotron at CIAE
	L.Y. Ji, S. An, T.J. Bian, F.P. Guan, S.M. Wei, H.D. Xie, X. Zheng CIAE, Beijing, People’s Republic of China
	Boron neutron capture therapy (BNCT) is a cancer treatment modality based on the nuclear capture and fission reactions. An 18 MeV, 1 mA proton cyclotron is under design at China Institute of Atomic Energy (CIAE) for BNCT. An external multi-cusp ion source is used to provide the negative hydrogen beam. The beam is injected into the cyclotron by an electrostatic inflector and extracted by a carbon foil. The physical design of the injection and extraction of this cyclotron will be presented in this paper. The problems of vertical focusing in central region and envelope control of the extracted beam will be discussed.
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Study of the Key Physics Problems in 10mA-class High Current Cyclotron

9

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

Funding: National Natural Science Foundation of China (Grant No. 12105370) and the Scientific Research Program for Young Talent Elite Project of China National Nuclear Corporation (Grant No. FY212406000404).
Proton beam with an average current of 10mA has many important applications in particle physics towards the intensity frontier, as well as in the advanced energy and material science. At present, superconducting linac is the mainstream of high current accelerator. As cyclotron has advantages of continuous beam structure, high beam/grid efficiency(60%~65% can be expected in superconducting ring cyclotron) and lower cost, cyclotron is also a potential candidate for future accelerator scheme with beam current of 10mA-class. Firstly, we will discuss the application prospect and motivation of 10mA-class high power cyclotron(10mA-HPC). Secondly, the key physics problems of 10mA-HPC are summarized, which includes strong space charge problems in low energy region, integer resonance crossing problems in high energy region and beam losses problems in extraction region. Thirdly, possible solutions for key physics problems and preliminary design of 10mA-HPC are proposed.

DOI •

reference for this paper ※ doi:10.18429/JACoW-SAP2023-MOCYA01

About •

Received ※ 30 June 2023 — Revised ※ 08 July 2023 — Accepted ※ 12 July 2023 — Issued ※ 30 May 2024

Cite •

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

TUPB005

Injection and Extraction for the BNCT High Intensity Proton Cyclotron at CIAE

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

Boron neutron capture therapy (BNCT) is a cancer treatment modality based on the nuclear capture and fission reactions. An 18 MeV, 1 mA proton cyclotron is under design at China Institute of Atomic Energy (CIAE) for BNCT. An external multi-cusp ion source is used to provide the negative hydrogen beam. The beam is injected into the cyclotron by an electrostatic inflector and extracted by a carbon foil. The physical design of the injection and extraction of this cyclotron will be presented in this paper. The problems of vertical focusing in central region and envelope control of the extracted beam will be discussed.

Cite •

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