Chinese Physics C > 2010, Vol. 34 > Issue(3): 405-408 DOI: 10.1088/1674-1137/34/3/020

Simulation and experiments for theQ_extof a cavity beam position monitor

LI Xiang^,,
ZHENG Shu-Xin

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Abstract：

The external Q (Q_ext) of the dipole mode is a key parameter of the Cavity Beam Position Monitor (CBPM). It determines the amplitude and length of the dipole mode signal. In this paper, Q_extof a CBPM whose waveguides were open to the air was simulated and measured, and the results agreed with each other. Then four waveguide-to-coaxial cable adpaters were adjusted and assembled to the CBPM, and Q_extremained unchanged. This progress provides a reliable method to evaluate Q_extin the physics design without simulating the structurally complex adapters.

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LI Xiang and ZHENG Shu-Xin. Simulation and experiments for the Q _extof a cavity beam position monitor[J]. Chinese Physics C, 2010, 34(3): 405-408. doi: 10.1088/1674-1137/34/3/020

LI Xiang and ZHENG Shu-Xin. Simulation and experiments for the Q _extof a cavity beam position monitor[J]. Chinese Physics C, 2010, 34(3): 405-408. doi:10.1088/1674-1137/34/3/020 shu

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Received: 2009-04-30
Revised: 2009-06-22

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Simulation and experiments for theQ_extof a cavity beam position monitor

Corresponding author:LI Xiang,

Received Date:2009-04-30

Accepted Date:2009-06-22

Available Online:2010-03-05

Abstract:

The external Q (Q_ext) of the dipole mode is a key parameter of the Cavity Beam Position Monitor (CBPM). It determines the amplitude and length of the dipole mode signal. In this paper, Q_extof a CBPM whose waveguides were open to the air was simulated and measured, and the results agreed with each other. Then four waveguide-to-coaxial cable adpaters were adjusted and assembled to the CBPM, and Q_extremained unchanged. This progress provides a reliable method to evaluate Q_extin the physics design without simulating the structurally complex adapters.

Simulation and experiments for theQ_extof a cavity beam position monitor

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通讯作者:陈斌, bchen63@163.com

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