IPAC2013 - List of Authors (Xing, Q.Z.)

Paper	Title	Page
THPWO049	Preliminary Beam Dynamics and Structure Design of One 50mA/CW RFQ with Ramped Inter-vane Voltage	3881
	L. Du, X. Guan, C.-X. Tang, Q.Z. Xing TUB, Beijing, People's Republic of China
	Funding: Work supported by National Natural Scienccontracte Foundation of China (Major Research Plan Grant No. 91126003 and Project 11175096). The beam dynamics and structure design of a ramped-voltage CW RFQ (Radio Frequency Quadrupole) accelerator for a NSFC (National Natural Science Foundation of China) Project at Tsinghua University is presented in this paper. The ramped-voltage RFQ, in which the inter-vane voltage increases from the low-energy end to the high-energy end, is compact and efficient. The RFQ, with the operating frequency of 325 MHz, will capture a 50 mA/CW, 50 keV proton beam from the RF source and accelerate it to 3 MeV, an energy suitable for chopping and injecting the beam in a conventional Drift Tube Linac. After optimization, the total length is as short as 2.9 m and the transmission rate is above 97%. The design of RFQ structure including the undercuts will also be shown.

THPWO050	High Power Test and Beam Commissioning of he CPHS RFQ Accelerator	3884
	Q.Z. Xing, C. Cheng, L. Du, Q. Du, T. Du, C. Jiang, H.T. Lu, J. Ni, Q. Qiang, C.-X. Tang, X.W. Wang, Y.G. Yang, H.Y. Zhang, S.X. Zheng TUB, Beijing, People's Republic of China J.H. Billen Self Employment, Private address, USA W.Q. Guan, Y. He, J. Li NUCTECH, Beijing, People's Republic of China X. Guan Tsinghua University, Beijing, People's Republic of China J. Stovall STFC/RAL, Chilton, Didcot, Oxon, United Kingdom L.M. Young LMY Technology, USA
	Funding: Work supported by the “985 Project” of the Ministry of Education of China, National Natural Science Foundation of China (Major Research Plan Grant No. 91126003 and 11175096). We present, in this paper, the high power test result and the beam commissioning status of a Radio Frequency Quadrupole (RFQ) accelerator for the Compact Pulsed Hadron Source (CPHS) at Tsinghua University. The 3-meter-long RFQ is designed to deliver 3 MeV protons to the downstream High Energy Beam Transport (HEBT) with the peak current of 50 mA, pulse length of 0.5 ms and beam duty factor of 2.5%. The RFQ has been designed, manufactured, and installed at Tsinghua University. High-vacuum test of the RFQ has been carried out carefully and the cooling system has been mounted. At the beginning of 2013, the high power RF test has been performed and the first 3 MeV proton beam is obtained.

Paper

Title

Page

Preliminary Beam Dynamics and Structure Design of One 50mA/CW RFQ with Ramped Inter-vane Voltage

3881

L. Du, X. Guan, C.-X. Tang, Q.Z. Xing
TUB, Beijing, People's Republic of China

Funding: Work supported by National Natural Scienccontracte Foundation of China (Major Research Plan Grant No. 91126003 and Project 11175096).
The beam dynamics and structure design of a ramped-voltage CW RFQ (Radio Frequency Quadrupole) accelerator for a NSFC (National Natural Science Foundation of China) Project at Tsinghua University is presented in this paper. The ramped-voltage RFQ, in which the inter-vane voltage increases from the low-energy end to the high-energy end, is compact and efficient. The RFQ, with the operating frequency of 325 MHz, will capture a 50 mA/CW, 50 keV proton beam from the RF source and accelerate it to 3 MeV, an energy suitable for chopping and injecting the beam in a conventional Drift Tube Linac. After optimization, the total length is as short as 2.9 m and the transmission rate is above 97%. The design of RFQ structure including the undercuts will also be shown.

THPWO050

High Power Test and Beam Commissioning of he CPHS RFQ Accelerator

3884

Q.Z. Xing, C. Cheng, L. Du, Q. Du, T. Du, C. Jiang, H.T. Lu, J. Ni, Q. Qiang, C.-X. Tang, X.W. Wang, Y.G. Yang, H.Y. Zhang, S.X. Zheng
TUB, Beijing, People's Republic of China
J.H. Billen
Self Employment, Private address, USA
W.Q. Guan, Y. He, J. Li
NUCTECH, Beijing, People's Republic of China
X. Guan
Tsinghua University, Beijing, People's Republic of China
J. Stovall
STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
L.M. Young
LMY Technology, USA

Funding: Work supported by the “985 Project” of the Ministry of Education of China, National Natural Science Foundation of China (Major Research Plan Grant No. 91126003 and 11175096).
We present, in this paper, the high power test result and the beam commissioning status of a Radio Frequency Quadrupole (RFQ) accelerator for the Compact Pulsed Hadron Source (CPHS) at Tsinghua University. The 3-meter-long RFQ is designed to deliver 3 MeV protons to the downstream High Energy Beam Transport (HEBT) with the peak current of 50 mA, pulse length of 0.5 ms and beam duty factor of 2.5%. The RFQ has been designed, manufactured, and installed at Tsinghua University. High-vacuum test of the RFQ has been carried out carefully and the cooling system has been mounted. At the beginning of 2013, the high power RF test has been performed and the first 3 MeV proton beam is obtained.