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Radiation effects on the mechanical properties of the material for the BESIII beam pipe supporting flange
Zheng LF(郑莉芳); Ji Q(纪全); Li XF(李勋锋); Liu X(刘璇); Zheng, LF; Wang, L; Wu, P; Ji, Q; Li, XF; Liu, X; Liu, JP
2008
发表期刊NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
卷号596期号:3页码:347-353
通讯作者[Zheng, Lifang ; Wang, Li ; Wu, Ping ; Li, Xunfeng] Univ Sci & Technol Beijing, Beijing 100083, Peoples R China ; [Zheng, Lifang ; Ji, Quan ; Li, Xunfeng ; Liu, Xuan] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Liu, Jianping] Tianjin Univ, Tianjin 300072, Peoples R China
文章类型Article
摘要The supporting flanges were designed and made to support the Beijing Spectrometer (BESIII) beam pipe in Beijing Electron Positron Collider (BEPCII). They will be irradiated to neutron and gamma in their 10 years design life in BESIII. As one kind of excellent insulating materials, G10 epoxy glass cloth-laminated sheets (G10) was selected as the candidate material, and some experiments have to be performed to obtain information on the changes of mechanical properties after irradiation. According to the requirements of BESIII experiment, samples were irradiated by a (60)Co-source up to 10(4) Gy and in a reactor to a slow neutron fluence of 4.1 x 10(18) m(-2) (E= 0.625 eV) sequently. The results show that the shear strength declines from 79.8 to 70.7 MPa. Since the established standards for tensile strength measurements involve sample sizes, which are far too large for the existing irradiation facilities, small size samples were designed to investigate the influence of the sample geometry on the tensile strength, based on which the tensile strength of G10 was deduced to decrease from 324.8 to 317.1 MPa after the same irradiation. The results indicate that G10 can well meet the requirements of the supporting flanges. Moreover, the shear and tensile fractures were observed by SEM to explain the experiment data. Now the supporting flanges made of G10 has been used in BEPCII supporting the BESIII beam pipe. (C) 2008 Elsevier B.V. All rights reserved.
关键词BESIII G10 Epoxy glass cloth-laminated sheets Mechanical properties Irradiation SEM BEPCII Beam pipe
学科领域Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy
DOI10.1016/j.nima.2008.08.135
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语种英语
WOS研究方向Instruments & Instrumentation ; Nuclear Science & Technology ; Physics ; Spectroscopy
WOS类目Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy
WOS记录号WOS:000261369000013
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237090
专题实验物理中心
作者单位中国科学院高能物理研究所
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Zheng LF,Ji Q,Li XF,et al. Radiation effects on the mechanical properties of the material for the BESIII beam pipe supporting flange[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2008,596(3):347-353.
APA 郑莉芳.,纪全.,李勋锋.,刘璇.,Zheng, LF.,...&Liu, JP.(2008).Radiation effects on the mechanical properties of the material for the BESIII beam pipe supporting flange.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,596(3),347-353.
MLA 郑莉芳,et al."Radiation effects on the mechanical properties of the material for the BESIII beam pipe supporting flange".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 596.3(2008):347-353.
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