Thermo-mechanical studies for the slit in the emittance measurements
文献类型：期刊论文
| 作者 | Yang T(杨涛); Xu TG(徐韬光) ; Wang AX(王安鑫); Qiu RY(邱瑞阳); Huang YL(黄蔚玲); Sun JL(孙继磊); Meng M(孟鸣); Ceng L(曾磊); Xu ZH(徐智虹); Tian JM(田建民)
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| 刊名 | JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
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| 出版日期 | 2015 |
| 页码 | 1-10 |
| 关键词 | Actual measurements Bragg peaks Double slits Emittance measurement Emittances Monte Carlo programs Spallation neutron sources Thermo-mechanical analysis |
| 通讯作者 | 杨涛 |
| 英文摘要 | A double-slit type monitor will be used in the emittance measurements at the exit of the first tank of the drift tube linac in the China Spallation Neutron Source where the H− ion energy is 21.67 MeV. The rapid energy deposition in the first slit may generate a rapid temperature rise and high thermal stress, which may damage the slit plate. This article presents detailed thermo-mechanical studies for the slit by Monte Carlo program and finite element analysis. The existence of Bragg peak of the stopping power introduces a thermal spike and stress peak in the slit plate, and both the peak values reach a quasi-steady-state after several beam pulses, moreover, they show different variation trends with changing the beam repetition rate and pulse width. The equilibrium peak temperature and stress are about 1605 K and 78 MPa, respectively, at beam pulse width of 100 μs and repetition rate of 5 Hz when the beam centered at the edge of slit, which does not exceed the corresponding threshold value of graphite, however, high cycling stress may bring about fatigue damage, so the beam parameters should be selected at suitable values according to the demands of actual measurements. © 2015 Atomic Energy Society of Japan. All rights reserved. |
| 类目[WOS] | 421 Strength of Building Materials ; Mechanical Properties ; 723.5 Computer Applications ; 744.1 Lasers, General ; 921.6 Numerical Methods ; 922.2 Mathematical Statistics ; 932.1 High Energy Physics ; 951 Materials Science |
| 收录类别 | EI ; CA |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228894]  |
| 专题 | 高能物理研究所_东莞分部 高能物理研究所_加速器中心 中国科学院高能物理研究所_中国散裂中子源 |
| 推荐引用方式 GB/T 7714 | Yang T,Xu TG,Wang AX,et al. Thermo-mechanical studies for the slit in the emittance measurements[J]. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY,2015:1-10. |
| APA | 杨涛.,徐韬光.,王安鑫.,邱瑞阳.,黄蔚玲.,...&Xiaojun.(2015).Thermo-mechanical studies for the slit in the emittance measurements.JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY,1-10. |
| MLA | 杨涛,et al."Thermo-mechanical studies for the slit in the emittance measurements".JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY (2015):1-10. |
入库方式： OAI收割
来源：高能物理研究所
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