CYCLOTRONS 2010 - List of Authors (Gao, D.Q.)

Paper

Title

Page

HIRFL-CSR Facility Status and Development

37

Y.J. Yuan, X.H. Cai, D.Q. Gao, Y. He, L.Z. Ma, X. Ma, R.S. Mao, Y.W. Su, X.L. Tu, J.W. Xia, H.S. Xu, Z. Xu, J.C. Yang, X.D. Yang, X.T. Yang, Y.P. Yang, W. Zhang, H.W. Zhao
IMP, Lanzhou, People's Republic of China

The HIRFL-CSR facility come into operation by the end of 2007. During operation in recent years, CSR supplied beam for experiments at several terminals and inside both CSRm and CSRe rings. The experiments covers high resolution mass measurement, cancer therapy research, neutron wall, atomic physics using electron target and internal gas target, using injection beam mainly from the SFC of cyclotron injector. New methods and further developments are required to improve the performance of CSR system including multi-gradients measurement method for beam spot commissioning and beam transfer, nonlinear effect correction and stabilization of isochronous mode of CSRe. For suppling of heverier ion beam with proper ernergy, the cyclotron complex should be enhanced and new injector is proposed to replace SFC as injector of SSC.

Slides MOA2CIO01 [3.766 MB]

MOPCP107

A Design of Switch Magnet Power Supply

266

H.H. Yan, Y.X. Chen, X.M. Feng, D.Q. Gao, Y.L. Gao, J.B. Shangguan, Y. Tang, J.Y. Xin, H.B. Yan, Z.D. Yuan, X.L. Zhang, Z.Z. Zhou
IMP, Lanzhou, People's Republic of China

The paper introduces a design of power supply for switch magnet in HIRFL. The main circuit topology used Buck chopper regulator, full-bridge inverter output and power units in parallel in the power supply is introduced. The operation principle and control strategy is analyzed in this article. The power supply can be operated in DC and pulse mode, has the very good output current long-term stability, high reliability and dynamic response characteristics. Finally, some experimental data and waveforms of the power supply are shown to demonstrate the performance of the design.

TUA2CCO03

Design and Construction Progress of a 7 MeV/u Cyclotron

317

B. Wang, D.Q. Gao, H.F. Hao, L.Z. Ma, K.D. Man, M.T. Song, X.W. Wang, X.T. Yang, Q.G. Yao, Z.M. You, J.Q. Zhang, S.H. Zhang, X.Q. Zhang, H.W. Zhao
IMP, Lanzhou, People's Republic of China

The 7MeV/u cyclotron accelerates carbon ions with mass number 12, 5+ charges, the extraction energy of carbon ions is 7 MeV/u, and the beam current density is designed to be 10 eμA. It designed as injector for the HITFiL (Heavy Ions Therapy Facility in LanZhou) synchrotron, which accelerates carbon ions to the energy 300 MeV/u for tumors treatment. Computer modeling results on the axial injection, magnetic, accelerating and extraction systems of the cyclotron are given. Design of the main systems of the cyclotron and the results of beam dynamic simulations are introduced. The construction progress including the ECR ion source, the axial injection beam line, the magnet, the RF system, the vacuum system etc. will be described respectively.

Slides TUA2CCO03 [1.679 MB]

Paper	Title	Page
MOA2CIO01	HIRFL-CSR Facility Status and Development	37
	Y.J. Yuan, X.H. Cai, D.Q. Gao, Y. He, L.Z. Ma, X. Ma, R.S. Mao, Y.W. Su, X.L. Tu, J.W. Xia, H.S. Xu, Z. Xu, J.C. Yang, X.D. Yang, X.T. Yang, Y.P. Yang, W. Zhang, H.W. Zhao IMP, Lanzhou, People's Republic of China
	The HIRFL-CSR facility come into operation by the end of 2007. During operation in recent years, CSR supplied beam for experiments at several terminals and inside both CSRm and CSRe rings. The experiments covers high resolution mass measurement, cancer therapy research, neutron wall, atomic physics using electron target and internal gas target, using injection beam mainly from the SFC of cyclotron injector. New methods and further developments are required to improve the performance of CSR system including multi-gradients measurement method for beam spot commissioning and beam transfer, nonlinear effect correction and stabilization of isochronous mode of CSRe. For suppling of heverier ion beam with proper ernergy, the cyclotron complex should be enhanced and new injector is proposed to replace SFC as injector of SSC.
	Slides MOA2CIO01 [3.766 MB]

MOPCP107	A Design of Switch Magnet Power Supply	266
	H.H. Yan, Y.X. Chen, X.M. Feng, D.Q. Gao, Y.L. Gao, J.B. Shangguan, Y. Tang, J.Y. Xin, H.B. Yan, Z.D. Yuan, X.L. Zhang, Z.Z. Zhou IMP, Lanzhou, People's Republic of China
	The paper introduces a design of power supply for switch magnet in HIRFL. The main circuit topology used Buck chopper regulator, full-bridge inverter output and power units in parallel in the power supply is introduced. The operation principle and control strategy is analyzed in this article. The power supply can be operated in DC and pulse mode, has the very good output current long-term stability, high reliability and dynamic response characteristics. Finally, some experimental data and waveforms of the power supply are shown to demonstrate the performance of the design.

TUA2CCO03	Design and Construction Progress of a 7 MeV/u Cyclotron	317
	B. Wang, D.Q. Gao, H.F. Hao, L.Z. Ma, K.D. Man, M.T. Song, X.W. Wang, X.T. Yang, Q.G. Yao, Z.M. You, J.Q. Zhang, S.H. Zhang, X.Q. Zhang, H.W. Zhao IMP, Lanzhou, People's Republic of China
	The 7MeV/u cyclotron accelerates carbon ions with mass number 12, 5+ charges, the extraction energy of carbon ions is 7 MeV/u, and the beam current density is designed to be 10 eμA. It designed as injector for the HITFiL (Heavy Ions Therapy Facility in LanZhou) synchrotron, which accelerates carbon ions to the energy 300 MeV/u for tumors treatment. Computer modeling results on the axial injection, magnetic, accelerating and extraction systems of the cyclotron are given. Design of the main systems of the cyclotron and the results of beam dynamic simulations are introduced. The construction progress including the ECR ion source, the axial injection beam line, the magnet, the RF system, the vacuum system etc. will be described respectively.
	Slides TUA2CCO03 [1.679 MB]