Commissioning of helium injector for coupled radio frequency quadrupole and separated function radio frequency quadrupole accelerator
Abstract
A project to study a new type of acceleration structure has been launched at Peking University, in which a traditional radio frequency quadrupole (RFQ) and a separated function radio frequency quadrupole are coupled in one cavity to accelerate the He+ beam. A helium injector for this project is developed. The injector consists of a 2.45 GHz permanent magnet electron cyclotron resonance ion source and a 1.16 m long low energy beam transport (LEBT). The commissioning of this injector was carried out and an onsite test was held in June 2013. A 14 mA He+ beam with the energy of 30 keV has been delivered to the end of the LEBT, where a diaphragm with the diameter of 7 mm is located. The position of the diaphragm corresponds to the entrance of the RFQ electrodes. The beam emittance and fraction were measured after the 7 mm diaphragm. Its rms emittance is about 0.14 π mm mrad and the fraction of He+ is about 99%.
- Authors:
-
- SKLNPT and IHIP, School of Physics, Peking University, Beijing 100871 (China)
- Publication Date:
- OSTI Identifier:
- 22254049
- Resource Type:
- Journal Article
- Journal Name:
- Review of Scientific Instruments
- Additional Journal Information:
- Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; ACCELERATORS; BEAM TRANSPORT; COMMISSIONING; ECR ION SOURCES; GHZ RANGE 01-100; PERMANENT MAGNETS; RADIOWAVE RADIATION
Citation Formats
Peng, Shixiang, Chen, Jia, Ren, Haitao, Zhao, Jie, Xu, Yuan, Zhang, Tao, Xia, Wenlong, Gao, Shuli, Wang, Zhi, Luo, Yuting, Guo, Zhiyu, Zhang, Ailing, Chen, Jia'er, and University of Chinese Academy of Sciences, Beijing 100049. Commissioning of helium injector for coupled radio frequency quadrupole and separated function radio frequency quadrupole accelerator. United States: N. p., 2014.
Web. doi:10.1063/1.4828375.
Peng, Shixiang, Chen, Jia, Ren, Haitao, Zhao, Jie, Xu, Yuan, Zhang, Tao, Xia, Wenlong, Gao, Shuli, Wang, Zhi, Luo, Yuting, Guo, Zhiyu, Zhang, Ailing, Chen, Jia'er, & University of Chinese Academy of Sciences, Beijing 100049. Commissioning of helium injector for coupled radio frequency quadrupole and separated function radio frequency quadrupole accelerator. United States. https://doi.org/10.1063/1.4828375
Peng, Shixiang, Chen, Jia, Ren, Haitao, Zhao, Jie, Xu, Yuan, Zhang, Tao, Xia, Wenlong, Gao, Shuli, Wang, Zhi, Luo, Yuting, Guo, Zhiyu, Zhang, Ailing, Chen, Jia'er, and University of Chinese Academy of Sciences, Beijing 100049. 2014.
"Commissioning of helium injector for coupled radio frequency quadrupole and separated function radio frequency quadrupole accelerator". United States. https://doi.org/10.1063/1.4828375.
@article{osti_22254049,
title = {Commissioning of helium injector for coupled radio frequency quadrupole and separated function radio frequency quadrupole accelerator},
author = {Peng, Shixiang and Chen, Jia and Ren, Haitao and Zhao, Jie and Xu, Yuan and Zhang, Tao and Xia, Wenlong and Gao, Shuli and Wang, Zhi and Luo, Yuting and Guo, Zhiyu and Zhang, Ailing and Chen, Jia'er and University of Chinese Academy of Sciences, Beijing 100049},
abstractNote = {A project to study a new type of acceleration structure has been launched at Peking University, in which a traditional radio frequency quadrupole (RFQ) and a separated function radio frequency quadrupole are coupled in one cavity to accelerate the He+ beam. A helium injector for this project is developed. The injector consists of a 2.45 GHz permanent magnet electron cyclotron resonance ion source and a 1.16 m long low energy beam transport (LEBT). The commissioning of this injector was carried out and an onsite test was held in June 2013. A 14 mA He+ beam with the energy of 30 keV has been delivered to the end of the LEBT, where a diaphragm with the diameter of 7 mm is located. The position of the diaphragm corresponds to the entrance of the RFQ electrodes. The beam emittance and fraction were measured after the 7 mm diaphragm. Its rms emittance is about 0.14 π mm mrad and the fraction of He+ is about 99%.},
doi = {10.1063/1.4828375},
url = {https://www.osti.gov/biblio/22254049},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 2,
volume = 85,
place = {United States},
year = {Sat Feb 15 00:00:00 EST 2014},
month = {Sat Feb 15 00:00:00 EST 2014}
}