Design and simulation of a wire scanner for the CSNS linac

RUAN Yu-Fang; HAN Lu-Xiang; LIU Hua-Chang; ZHANG Hua-Shun; XU Tao-Guang; FU Shi-Nian

doi:10.1088/1674-1137/34/10/020

Chinese Physics C> 2010, Vol. 34> Issue(10) : 1655-1660 DOI: 10.1088/1674-1137/34/10/020

Design and simulation of a wire scanner for the CSNS linac

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Abstract：
In this paper, we report the design and simulation of a wire scanner for the linac of the CSNS (China Spallation Neutron Source). The wire scanner is used to measure the transverse beam profile and the emittance. The effect of beam energy change upon the mechanical design of the wire scanner must be considered. The simulation results of heat on the two specified wires, tungsten and carbon, by using the finite element method software, ANSYS, are presented. In addition, the effect of wire deformation on the beam profile measurement is qualitatively analyzed, and the signal level of the wire scanner is discussed.

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RUAN Yu-Fang, HAN Lu-Xiang, LIU Hua-Chang, ZHANG Hua-Shun, XU Tao-Guang and FU Shi-Nian. Design and simulation of a wire scanner for the CSNS linac[J]. Chinese Physics C, 2010, 34(10): 1655-1660. doi: 10.1088/1674-1137/34/10/020

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Received: 2009-11-11
Revised: 2010-01-07

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沈阳化工大学材料科学与工程学院沈阳 110142

Design and simulation of a wire scanner for the CSNS linac

Corresponding author: RUAN Yu-Fang,

Received Date: 2009-11-11
Accepted Date: 2010-01-07
Available Online: 2010-10-05

Abstract:

In this paper, we report the design and simulation of a wire scanner for the linac of the CSNS (China Spallation Neutron Source). The wire scanner is used to measure the transverse beam profile and the emittance. The effect of beam energy change upon the mechanical design of the wire scanner must be considered. The simulation results of heat on the two specified wires, tungsten and carbon, by using the finite element method software, ANSYS, are presented. In addition, the effect of wire deformation on the beam profile measurement is qualitatively analyzed, and the signal level of the wire scanner is discussed.