期刊文献+

用于原位中子散射水合物测量装置

In-situ neutron scattering device for the studies of hydrates
分享 导出
摘要 能源与环境问题的日益突出,为可燃冰的研究提供了动力。可燃冰的形成机理、储存及利用,都与其结构性质紧密相关。为了研究可燃冰结构,需要加工一套可以维持可燃冰低温高压环境的低温恒温器。通过恒温器设计及压腔设计,实现了低温高压的耦合,最低温50 K,最高压力20 MPa。经过在通用粉末衍射谱仪(GPPD)测试,成功观察到了可燃冰的衍射峰。测试结果显示,所研制的高压低温恒温器运行稳定可靠,温度梯度较小,控温精度高,可以满足可燃冰中子散射实验需求。 The increasingly prominent energy and environmental issues have provided the impetus for the research of combustible ice(frozen water-based methane hydrates). The structure, formation mechanism, storage and utilization of combustible ice are closely related to its structural properties. In order to study the combustible ice structure, it is necessary to process a cryostat that can maintain the low temperature and high pressure environment. After the design of the cryostat and the pressure chamber, the coupling of low temperature and high pressure was realized, and the lowest temperature was 50 K, and the highest pressure was 20 MPa.Experiment was carried out at the GPPD instrument at the China Spallation Neutron Source. The diffraction peak of combustible ice was successfully observed. The test results show that the cryostat has stable and reliable operation, small temperature gradient and high temperature control accuracy, which can meet the requirements of combustible ice neutron scattering experiment.
作者 白波 袁宝 杜三亚 于晓辉 胡海韬 张绍英 梁天骄 黄志强 童欣 Bai Bo;Yuan Bao;Du Sanya;Yu Xiaohui;Hu Haitao;Zhang Shaoying;Liang Tianjiao;Tong Xin(Dongguan Branch,Institute of High Energy Physics,Chinese Academy of Sciences,Dongguan 523803 ,China;Dongguan Institute of Neutron Science,Dongguan 523808 ,China;Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China)
出处 《低温与超导》 CAS 北大核心 2019年第5期7-11,共5页 Cryogenics and Superconductivity
基金 国家重点研发计划(2016YFA0401503)资助。
关键词 可燃冰 中子衍射技术 低温高压耦合环境 低温恒温器 Combustible ice Neutron diffraction technique Low temperature and high pressure coupling environment Cryostat
作者简介 白波(1988-),男,硕士/工程师,研究方向为制冷及低温工程;通讯作者:童欣(1982-),男,博士/研究员,研究方向为物理(E-mail:tongxin@ihep.ac.cn)。
  • 相关文献

参考文献4

二级参考文献25

共引文献27

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈