Study of a magnetic alloy-loaded RF cavity for bunch compression at the CSR

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YIN Da-Yu, LIU Yong, XIA Jia-Wen, LI Peng, ZHAO Yong-Tao, YANG Lei and QI Xin. Study of a magnetic alloy-loaded RF cavity for bunch compression at the CSR[J]. Chinese Physics C, 2010, 34(12): 1879-1882.
YIN Da-Yu, LIU Yong, XIA Jia-Wen, LI Peng, ZHAO Yong-Tao, YANG Lei and QI Xin. Study of a magnetic alloy-loaded RF cavity for bunch compression at the CSR[J]. Chinese Physics C, 2010, 34(12): 1879-1882. shu
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Received: 2010-01-11
Revised: 2010-06-01
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Study of a magnetic alloy-loaded RF cavity for bunch compression at the CSR

    Corresponding author: YIN Da-Yu,

Abstract: 

The Heavy Ion Research Facility and Cooling Storage Ring (HIRFL-CSR) accelerator in Lanzhou offers a unique possibility for the generation of high density and short pulse heavy ion beams by non-adiabatic bunch compression longitudinally, which is implemented by a fast jump of the RF-voltage amplitude. For this purpose, an RF cavity with high electric field gradient loaded with Magnetic Alloy cores has been developed. The results show that the resonant frequency range of the single-gap RF cavity is from 1.13 MHz to 1.42 MHz, and a maximum RF voltage of 40 kV with a total length of 100 cm can be obtained, which can be used to compress heavy ion beams of 238U72+ with 250 MeV/u from the initial bunch length of 200 ns to 50 ns with the coaction of the two single-gap RF cavity mentioned above.

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