Development and Measurements of a Technological Cavity for 350MHz High Current Proton RFQ

GUO Zhi-Yu; FANG Jia-Xun; GUO Ju-Fang; LI Wei-Guo; YU Mao-Lin; GAO Shu-Li; GUAN Xia-Ling; FU Shi-Nian; OUYANG Hua-Fu; XU Wen-Wu; XU Tao-Guang

Chinese Physics C> 2004, Vol. 28> Issue(7) : 762-766

Development and Measurements of a Technological Cavity for 350MHz High Current Proton RFQ

Institute of Heavy Ion Physics,Peking University,Beijing 100871,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

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A full-dimension oxygen-free-copper technological cavity was developed for the study on the design and the technological process of a high-current proton RFQ. The physical and mechanical design, machining and brazing technological studies, and RF performance measurements and tuning were introduced. An ideal field distribution could be reached by tuning cavity, whose consistence and smoothness of the field distributions in the four quadrants meet the demands of use. Its dipole components are small enough, too.

References

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. CHEN Jia-Er, FANG Jia-Xun. Progress of Natural Sciences, 2001, 11(11) : 1121 (陈佳洱，方家驯自然科学进展，2001,11 (11): 1121)2. Schneider J D. Overview of High Power CW Proton Accelerators. Proc.of EPAC 2000. 1183. Lagniel J M. High Power Proton Linac for a Multiuser Facility. Proc. of EPAC 2000. 9454. GUAN Xia-Ling, FU Shi-Nian, FANG Jia-Xun et al. The Activit ies ofHPPA Technology Relat ed to ADS in China. Proc. of APAC 2001. 138.5. Smith H V et al . Commissioning Results from the LEDA RFQ. Proc. ofEPAC 2000. 9696. FU Shi-Nian, GUAN Xia-Ling, OUYANG Hua-Fu et al. RD St atus ofa 3.5MeV RFQ Accelerator for ADS Study in China. Proc. of Linac2002. 1557. FU Shi-Nian. HEP NP, 2002, 26(7) : 735 (傅世年.高能物理与核物理，2002,26(7):735)

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[18]	WANG Shu-Hong . RFQ's Beam Dynamics and RF Structure. Chinese Physics C, 1993, 17(4): 310-321.
[19]	LOU ZI-HUA . REDUCTION OF THE BEAM ENERGY SPREAD OF RFQ BY DEBUNCHER. Chinese Physics C, 1982, 6(4): 507-511.
[20]	LUO ZI-HUA , LUO YING-XIONG , WANG LIN-LIN . STUDY OF THE BEAM TRAMSVERSE MOTION IN THE RFQ STRUCTURE. Chinese Physics C, 1982, 6(6): 688-696.

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GUO Zhi-Yu, FANG Jia-Xun, GUO Ju-Fang, LI Wei-Guo, YU Mao-Lin, GAO Shu-Li, GUAN Xia-Ling, FU Shi-Nian, OUYANG Hua-Fu, XU Wen-Wu and XU Tao-Guang. Development and Measurements of a Technological Cavity for 350MHz High Current Proton RFQ[J]. Chinese Physics C, 2004, 28(7): 762-766.

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Received: 2003-11-13
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Development and Measurements of a Technological Cavity for 350MHz High Current Proton RFQ

Corresponding author: GUO Zhi-Yu,

Institute of Heavy Ion Physics,Peking University,Beijing 100871,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 2003-11-13

Accepted Date: 1900-01-01

Available Online: 2004-07-05

Abstract: A full-dimension oxygen-free-copper technological cavity was developed for the study on the design and the technological process of a high-current proton RFQ. The physical and mechanical design, machining and brazing technological studies, and RF performance measurements and tuning were introduced. An ideal field distribution could be reached by tuning cavity, whose consistence and smoothness of the field distributions in the four quadrants meet the demands of use. Its dipole components are small enough, too.

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Development and Measurements of a Technological Cavity for 350MHz High Current Proton RFQ

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