HB2016 - List of Keywords (ion-source)

Paper	Title	Other Keywords	Page
MOPM1P80	Accelerator Physics Challenges in FRIB Driver Linac	ion, linac, simulation, heavy-ion	27
	M. Ikegami, K. Fukushima, Z.Q. He, S.M. Lidia, Z. Liu, S.M. Lund, F. Marti, T. Maruta, D.G. Maxwell, G. Shen, J. Wei, Y. Yamazaki, T. Yoshimoto, Q. Zhao FRIB, East Lansing, Michigan, USA
	Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 FRIB is a heavy ion linac facility to accelerate all stable ions to the energy of 200 MeV/u with the beam power of 400 kW, which is under construction at Michigan State University in USA. FRIB driver linac is a beam power frontier accelerator aiming to realize two orders of magnitude higher beam power than existing facilities. It consists of more than 300 low-beta superconducting cavities with unique folded layout to fit into the existing campus with innovative features including multi charge state acceleration. In this talk, we overview accelerator physics challenges in FRIB driver linac with highlight on recent progresses and activities preparing for the coming beam commissioning.
	Slides MOPM1P80 [22.790 MB]
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TUPM1Y01	Advances in the Development of the ESS-Bilbao Proton Injector	solenoid, rfq, ion, plasma	323
	Z. Izaola, I. Bustinduy, J. Corres, G. Harper, R. Miracoli, J.L. Muñoz, I. Rueda, A. Vizcaino, A. Zugazaga, D. de Cos, C. de la Cruz ESS Bilbao, Zamudio, Spain
	We present the last advances in the operation and construction of the ESS-Bilbao 3 MeV proton beam injector. The proton ECR source allows to change the distance between the plasma chamber and the first extraction electrode, acceleration gap. The beam has been characterised at different acceleration gaps by current transformers, wire scanners and photographs of 2d profiles. In addition, we present the status of the construction of the RFQ; which is at its beginning.
	Slides TUPM1Y01 [11.753 MB]
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WEAM5Y01	Analyzing and Matching of Mixed High Intensity Highly Charged Ion Beams	ion, solenoid, space-charge, simulation	422
	X.H. Zhang, C. Qian, L.T. Sun, Y. Yang, X. Yin, Y.J. Yuan, H.W. Zhao IMP/CAS, Lanzhou, People's Republic of China
	Funding: Work supported by the National Natural Science Foundation of China (No. 11575265, 11427904) and the “973” Program of China (No. 2014CB845501). Electron cyclotron resonance (ECR) ion sources are widely used in heavy ion accelerators for their advantages in producing high quality intense beams of highly charged ions. However, it exists challenges in the design of the Q/A selection systems for mixed high intensity ion beams to reach sufficient Q/A resolution while controlling the beam emittance growth. Moreover, as the emittance of beam from ECR ion sources is coupled, the matching of phase space to post accelerator, for a wide range of ion beam species with different intensities, should be carefully studied. In this paper, the simulation and experimental results of the Q/A selection system at the LECR4 platform are shown. The formation of hollow cross section heavy ion beam at the end of the Q/A selector is revealed. A reasonable interpretation has been proposed, a modified design of the Q/A selection system has been committed for HIRFL-SSC linac injector. The features of the new design including beam simulations and experiment results are also presented.
	Slides WEAM5Y01 [3.244 MB]
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WEPM6Y01	Study on Space Charge Compensation of Low Energy High Intensity Ion Beam in Peking University	space-charge, ion, simulation, experiment	453
	S.X. Peng, J.E. Chen, Z.Y. Guo, H.T. Ren, J.M. Wen, W.B. Wu, Y. Xu, A.L. Zhang, J.F. Zhang, T. Zhang PKU, Beijing, People's Republic of China J.E. Chen Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China H.T. Ren FRIB, East Lansing, Michigan, USA A.L. Zhang University of Chinese Academy of Sciences, Beijing, People's Republic of China
	To better understand the space charge compensation processes in low energy high intensity beam transportation, numerical study and experimental simulation on H⁺ beam and H⁻ beam were carried out at Peking University (PKU). The numerical simulation is done with a PIC-MCC model [1] whose computing framework was done with the 3D MATLAB PIC code bender [2], and the impacts among particles were done with Monte Carlo collision via null-collision method [3]. Issues, such as beam loss caused by collisions in H⁺, H⁻ beam and ion-electron instability related to decompensation and overcompensation in H⁻ beam, are carefully treated in this model. The experiments were performed on PKU ion source test bench. Compensation gases were injected directly into the beam transportation region to modify the space charge compensation degree. The results obtained during the experiment are agree well with the numerical simulation ones for both H⁺ beam [1] and H⁻ beam [4]. Details will be presented in this paper.
	Slides WEPM6Y01 [5.625 MB]
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Paper

Title

Other Keywords

Page

MOPM1P80

Accelerator Physics Challenges in FRIB Driver Linac

ion, linac, simulation, heavy-ion

27

M. Ikegami, K. Fukushima, Z.Q. He, S.M. Lidia, Z. Liu, S.M. Lund, F. Marti, T. Maruta, D.G. Maxwell, G. Shen, J. Wei, Y. Yamazaki, T. Yoshimoto, Q. Zhao
FRIB, East Lansing, Michigan, USA

Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
FRIB is a heavy ion linac facility to accelerate all stable ions to the energy of 200 MeV/u with the beam power of 400 kW, which is under construction at Michigan State University in USA. FRIB driver linac is a beam power frontier accelerator aiming to realize two orders of magnitude higher beam power than existing facilities. It consists of more than 300 low-beta superconducting cavities with unique folded layout to fit into the existing campus with innovative features including multi charge state acceleration. In this talk, we overview accelerator physics challenges in FRIB driver linac with highlight on recent progresses and activities preparing for the coming beam commissioning.

Slides MOPM1P80 [22.790 MB]

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TUPM1Y01

Advances in the Development of the ESS-Bilbao Proton Injector

solenoid, rfq, ion, plasma

323

Z. Izaola, I. Bustinduy, J. Corres, G. Harper, R. Miracoli, J.L. Muñoz, I. Rueda, A. Vizcaino, A. Zugazaga, D. de Cos, C. de la Cruz
ESS Bilbao, Zamudio, Spain

We present the last advances in the operation and construction of the ESS-Bilbao 3 MeV proton beam injector. The proton ECR source allows to change the distance between the plasma chamber and the first extraction electrode, acceleration gap. The beam has been characterised at different acceleration gaps by current transformers, wire scanners and photographs of 2d profiles. In addition, we present the status of the construction of the RFQ; which is at its beginning.

Slides TUPM1Y01 [11.753 MB]

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

WEAM5Y01

Analyzing and Matching of Mixed High Intensity Highly Charged Ion Beams

ion, solenoid, space-charge, simulation

422

X.H. Zhang, C. Qian, L.T. Sun, Y. Yang, X. Yin, Y.J. Yuan, H.W. Zhao
IMP/CAS, Lanzhou, People's Republic of China

Funding: Work supported by the National Natural Science Foundation of China (No. 11575265, 11427904) and the “973” Program of China (No. 2014CB845501).
Electron cyclotron resonance (ECR) ion sources are widely used in heavy ion accelerators for their advantages in producing high quality intense beams of highly charged ions. However, it exists challenges in the design of the Q/A selection systems for mixed high intensity ion beams to reach sufficient Q/A resolution while controlling the beam emittance growth. Moreover, as the emittance of beam from ECR ion sources is coupled, the matching of phase space to post accelerator, for a wide range of ion beam species with different intensities, should be carefully studied. In this paper, the simulation and experimental results of the Q/A selection system at the LECR4 platform are shown. The formation of hollow cross section heavy ion beam at the end of the Q/A selector is revealed. A reasonable interpretation has been proposed, a modified design of the Q/A selection system has been committed for HIRFL-SSC linac injector. The features of the new design including beam simulations and experiment results are also presented.

Slides WEAM5Y01 [3.244 MB]

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

WEPM6Y01

Study on Space Charge Compensation of Low Energy High Intensity Ion Beam in Peking University

space-charge, ion, simulation, experiment

453

S.X. Peng, J.E. Chen, Z.Y. Guo, H.T. Ren, J.M. Wen, W.B. Wu, Y. Xu, A.L. Zhang, J.F. Zhang, T. Zhang
PKU, Beijing, People's Republic of China
J.E. Chen
Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
H.T. Ren
FRIB, East Lansing, Michigan, USA
A.L. Zhang
University of Chinese Academy of Sciences, Beijing, People's Republic of China

To better understand the space charge compensation processes in low energy high intensity beam transportation, numerical study and experimental simulation on H⁺ beam and H⁻ beam were carried out at Peking University (PKU). The numerical simulation is done with a PIC-MCC model [1] whose computing framework was done with the 3D MATLAB PIC code bender [2], and the impacts among particles were done with Monte Carlo collision via null-collision method [3]. Issues, such as beam loss caused by collisions in H⁺, H⁻ beam and ion-electron instability related to decompensation and overcompensation in H⁻ beam, are carefully treated in this model. The experiments were performed on PKU ion source test bench. Compensation gases were injected directly into the beam transportation region to modify the space charge compensation degree. The results obtained during the experiment are agree well with the numerical simulation ones for both H⁺ beam [1] and H⁻ beam [4]. Details will be presented in this paper.

Slides WEPM6Y01 [5.625 MB]

Export •

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