Acquisition of Closed Cycle Helium Liquefaction System

纽约州立大学石溪分校物理系将购买一个过程系统国际1410型氦液化系统，以取代(和升级)已有20年历史的恶化的现有系统。该设备将用于几个正在进行的材料研究项目，主要工作是铜酸盐和富勒烯中的高温超导、约瑟夫森结和电子学、分数量子霍尔效应、宏观量子现象和单电子隧穿。使用闭合循环氦液化系统将大大降低由NSF和其他联邦和州机构资助的研究成本，并有助于保护有限的自然资源--氦气。

The Department of Physics at the State University of New York at Stony Brook will purchase a Process Systems International model 1410 helium liquefaction system to replace (and upgrade) the 20years old deteriorated existing one. The equipment will be used for several ongoing materials research projects, primarily work on high temperature superconductivity in cuprates and fullerence, Josephson junctions and electronics, fractional quantum Hall effect, macroscopic quantum phenomena, and single-electron tunneling. Use of a closed cycle helium liquefaction system will significantly reduce the cost of research funded by NSF and other federal and state agencies and contribute to conservation of a limited natural resource-helium gas.