The radio-frequency design of an iris-type coupler for the CPHS radio-frequency quadrupole

中国物理C, 2012, 36(1): 96-100. doi: 10.1088/1674-1137/36/1/017

^1, , ^2, , ^3, , ^4,

1.Department of Engineering Physics, Tsinghua University, Beijing 100084, China Key Laboratory of Particle & Radiation Imaging(Tsinghua University), Ministry of Education

2.Department of Engineering Physics, Tsinghua University, Beijing 100084, China Key Laboratory of Particle & Radiation Imaging(Tsinghua University), Ministry of Education

3.Department of Engineering Physics, Tsinghua University, Beijing 100084, China Key Laboratory of Particle & Radiation Imaging(Tsinghua University), Ministry of Education

4.Department of Engineering Physics, Tsinghua University, Beijing 100084, China Key Laboratory of Particle & Radiation Imaging(Tsinghua University), Ministry of Education

The radio-frequency design of an iris-type coupler for the CPHS radio-frequency quadrupole

XIONG Zheng-Feng ^1, , ZHENG Shu-Xin ^2, , XING Qing-Zi ^3, , GUAN Xia-Ling ^4,

1.Department of Engineering Physics, Tsinghua University, Beijing 100084, China Key Laboratory of Particle & Radiation Imaging(Tsinghua University), Ministry of Education

2.Department of Engineering Physics, Tsinghua University, Beijing 100084, China Key Laboratory of Particle & Radiation Imaging(Tsinghua University), Ministry of Education

3.Department of Engineering Physics, Tsinghua University, Beijing 100084, China Key Laboratory of Particle & Radiation Imaging(Tsinghua University), Ministry of Education

4.Department of Engineering Physics, Tsinghua University, Beijing 100084, China Key Laboratory of Particle & Radiation Imaging(Tsinghua University), Ministry of Education

Keywords： CPHS

The Compact Pulsed Hadron Source (CPHS) project is a university-based proton accelerator platform (13 MeV,16 kW,50 mA peak current,0.5 ms pulse width at 50 Hz) for multi-disciplinary neutron and proton applications.The CPHS linac consists of a 3 MeV radio frequency quadrupole (RFQ) linac and a 13 MeV drift tube linac (DTL).Both the RFQ and DTL share a 325 MHz,2.1 MW klystron source.A single iris-type radio-frequency (RF) coupler is used to feed 537 kW of RF power to the RFQ cavity.Threedimensional electromagnetic models of the ridge-loaded tapered waveguide (RLWG) and the coupler-cavity system are presented,and the design process and results of the RLWG and iris plate are described in detail.

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The radio-frequency design of an iris-type coupler for the CPHS radio-frequency quadrupole

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