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Thermal analysis for wire scanners in the CSNS Linac
Yang T(杨涛); Fu SN(傅世年); Xu TG(徐韬光); Yang, T; Fu, SN; Xu, TG; Xu, ZH; Meng, M; Qiu, RY; Tian, JM; Zeng, L; Li, P; Li, F;; Xu ZH(徐智虹); Meng M(孟鸣); Qiu RY(邱瑞阳); Tian JM(田建民); Ceng L(曾磊); Li P(李鹏); Li F(李芳)
2014
发表期刊NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
卷号760页码:10-18
摘要3 MeV H beam from the Radio Frequency Quadrupole (RFQ) will be accelerated to 80 MeV in the CSNS (China Spallation Neutron Source) linear accelerator (Linac). The wire scanner is used to measure the transverse beam profile and the emittance, and the carbon or tungsten wire is considered to use. Thermal analysis of the wire scanners in the Linac is presented in this paper. The maximum temperature (T,) of the wire decreases as the beam energy increases, and we also calculate the influence of all possible parameters on T-m. T-m, of carbon wire is significantly lower than tungsten wire if both the beam parameters and wire geometric parameters are set to the same, which can be attributed to its higher heat capacity and radiant emissivity. In addition, we present the results of sublimation rate of the wire, which show that tungsten wire has a much lower evaporation rate than carbon wire in the same temperature, which can be attributed to the different vapor pressures of the two materials. To limit the thermionic emission, the maximum beam frequency approximately has an exponential relationship with beam rms size at a certain beam pulse width. (C) 2014 Elsevier B.V. All rights reserved.
关键词CSNS Linac The maximum temperature Beam and geometric parameters Wire sublimation Restraining the thermionic emission
学科领域Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy
DOI10.1016/j.nima.2014.05.061
收录类别SCI
WOS记录号WOS:000338350500003
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225218
专题加速器中心
中国科学院高能物理研究所_中国散裂中子源
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GB/T 7714
Yang T,Fu SN,Xu TG,et al. Thermal analysis for wire scanners in the CSNS Linac[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2014,760:10-18.
APA 杨涛.,傅世年.,徐韬光.,Yang, T.,Fu, SN.,...&李芳.(2014).Thermal analysis for wire scanners in the CSNS Linac.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,760,10-18.
MLA 杨涛,et al."Thermal analysis for wire scanners in the CSNS Linac".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 760(2014):10-18.
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