| Paper |
Title |
Page |
MOPM2P90 |
Status and Challenges of High Intensity Heavy Ion Accelerator Facility (HIAF) in China |
|
| |
- J.C. Yang, J.W. Xia, G.Q. Xiao, H.S. Xu, Y.J. Yuan, H.W. Zhao, X.H. Zhou
IMP/CAS, Lanzhou, People's Republic of China
|
|
| |
HIAF is a proposed new accelerator facility in China. The facility is being designed to provide intense primary and radioactive beams for a wide range of research fields. The HIAF facility plan was approved by central government of China in December 2015. The machine studies are now mainly focused on design optimization and key technical R&D.The unique features of the first phase of HIAF are high current pulsed beams from iLinac and high intensity heavy ion beams with ultra-short bunch length from BRing. The cooled rare isotope beams also will be prepared through projectile-fragmentation (PF) method and advanced beam cooling technology. To reach the main goals of the HIAF facility, there are still several technical challenges such as operation with high intensity beams, control of the dynamic vacuum pressure, beam compression for very short pulse beam and the design of Nuclotron-type superconducting magnets. For most of those challenges solutions have been found and prototypes are being built through close international collaborations. The general description, accelerator challenges and present status are given in the presentation.
|
|
|
Slides MOPM2P90 [9.425 MB]
|
|
| Export • |
reference for this paper to
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
| MOPR008 |
Pressure Profiles Calculation for the CSRm and BRing |
62 |
| |
- P. Li, Z. Chai, Z. Dong, X.C. Kang, M. Li, S. Li, W.L. Li, C.L. Luo, R.S. Mao, J. Meng, J.C. Yang, Y.J. Yuan, W.H. Zheng
IMP/CAS, Lanzhou, People's Republic of China
|
|
| |
Funding: National Natural Science Foundation of China (Project No. 11305227)
A new large scale accelerator facility is being designed by Institute of Modern Physics (IMP) Lanzhou, which is named as the High Intensity heavy-ion Accelerator Facility (HIAF). This project consists of ion sources, Linac accelerator, synchrotrons (BRing) and several experimental terminals. During the operation of Bring, the heavy ion beams will be easily lost at the vacuum chamber along the BRing when it is used to accumulate intermediate charge state particles. The vacuum pressure bump due to the ion-induced desorption in turn leads to an increase in beam loss rate. In order to accumulate the beams to higher intensity to fulfill the requirements of physics experiments and for better understanding of the dynamic vacuum pressure caused by the beam loss, a dynamic vacuum pressure simulation program has been developed. Vacuum pressure profiles are calculated and compared with the measured data based on the current synchrotron (CSRm). Then the static vacuum pressure profiles of the BRing and one type of pump which will be used in the BRing are introduced in this paper.
|
|
| Export • |
reference for this paper to
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
TUPM8Y01 |
Lessons of High-power CW Beam Commissioning of Injector II of Chinese ADS |
|
| |
- H. Jia, W. Chang, W.L. Chen, W.P. Dou, C. Feng, Z. Gao, Y. He, Y. Tao, W.S. Wang, Z.J. Wang, J.X. Wu, Q. Wu, Z. Xue, Y.J. Yuan, Y. Zhang, H.W. Zhao
IMP/CAS, Lanzhou, People's Republic of China
|
|
| |
Funding: Supported by CAS Strategic Priority Research Program-Future Advanced Nuclear Fission Energy, and also by National Natural Science Foundation of China (11525523).
The Chinese ADS Injector II has commissioned CW proton beam to 4.6 MeV, 3.9 mA with superconducting linac. Lessons of high-power beam commissioning, including lattice settings, phase scan, power ramping procedure and accidents will be presented.
|
|
|
|
Slides TUPM8Y01 [8.402 MB]
|
|
| Export • |
reference for this paper to
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
| WEAM5Y01 |
Analyzing and Matching of Mixed High Intensity Highly Charged Ion Beams |
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]
|
|
| Export • |
reference for this paper to
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |