Title | Beam optimization of helium injector for coupled RFQ-SFRFQ linac |
Authors | Xia, W. L. Wang, Z. Lu, Y. R. Chen, J. Zhao, J. Ren, H. T. Zhu, K. Peng, S. X. Chen, J. E. |
Affiliation | Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China. |
Keywords | CRS Helium injector Control system Beam optimization DYNAMICS DESIGN CAVITY |
Issue Date | 2014 |
Publisher | nuclear instruments methods in physics research section a accelerators spectrometers detectors and associated equipment |
Citation | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT.2014,756,55-61. |
Abstract | The coupled REQ-SERFQ (CRS) cavity designed in Peking University is a new type linac that coupled radio frequency quadrupole (RFQ) and separated function radio frequency quadrupole (SERFQ) structure into a single cavity. An upgraded helium injector for the CRS cavity consisting of a 2.45 GHz permanent magnet electron cyclotron resonance (ECR) ion source and a 1.16 m low energy beam transport (LEBT) has been constructed and tested. The beam conditions of the injector were carefully optimized to satisfy the requirements of the CRS linac, the corresponding control system and a two-dimension scanner code CRSv1.0 were developed for optimizing the beam transmission from LEBT section to the entrance of the CRS cavity. The beam transmission efficiency has reached to approximately 87.5% as well as the optimized operating parameters were obtained by means of the scanner code. (C) 2014 Elsevier B.V. All rights reserved. |
URI | http://hdl.handle.net/20.500.11897/147849 |
ISSN | 0168-9002 |
DOI | 10.1016/j.nima.2014.04.049 |
Indexed | SCI(E) EI |
Appears in Collections: | 核物理与核技术国家重点实验室 |