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

XIONG Zheng-Feng; ZHENG Shu-Xin; XING Qing-Zi; GUAN Xia-Ling

doi:10.1088/1674-1137/36/1/017

Chinese Physics C> 2012, Vol. 36> Issue(1) : 96-100 DOI: 10.1088/1674-1137/36/1/017

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

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Abstract：
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. Three-dimensional 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.

References

[1]

WEI J et al. The Compact Pulsed Hadron Source Construction Status. Proceedings of IPAC'10. 2010. 633-6352 XING Q Z et al. Design of the CPHS RFQ linac at Tsinghua University. Proceedings of IPAC'10. 2010. 795-7973 LIU H C et al. Chinese Physics C (HEP NP), 2011, 35(1): 92-954 YOUNG L M et al. High Power RF Conditioning of the LEDA RFQ. Proceedings of PAC'99. 1999. 881-8835 Helszajn J. Ridge Waveguides and Passive Microwave Components. UK: The Institution of Electrical Engineers, 2000.27-286 Han-Sung Kim et al. Journal of the Korean Physical Soci- ety, 2006, 48(4): 732-7357 Kurennoy S S et al. RF Coupler for High-Power CW FEL Photoinjector. Proceedings of PAC'03. 2003. 3515-3517

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XIONG Zheng-Feng, ZHENG Shu-Xin, XING Qing-Zi and GUAN Xia-Ling. The radio-frequency design of an iris-type coupler for the CPHS radio-frequency quadrupole[J]. Chinese Physics C, 2012, 36(1): 96-100. doi: 10.1088/1674-1137/36/1/017

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Received: 2011-03-02
Revised: 2011-05-06

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2011-03-02
Accepted Date: 2011-05-06
Available Online: 2012-01-05

Abstract: 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. Three-dimensional 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.