Acquisition of a Dilution Refrigerator

这种中等高功率稀释制冷机将用于自旋极化量子系统的研究。该冰箱将用于合作研究氢原子与莱曼- α激光，研究和开发低温氢微波激射器（CHM），研究在低温下原子散射，以及许多其他实验。激光实验的目的是获得玻色-爱因斯坦凝聚的条件，这对物理学具有基础意义。此外，激光为研究磁阱中的原子提供了有价值的诊断工具。CHM不仅承诺比任何现有的振荡器更稳定，而且凭借其稳定性，将能够精确测量这个基本系统中的相互作用常数。散射实验将能够确定许多以前从未测量过的非常重要的截面。其他一些实验有望产生丰富的新现象。

This modestly high power dilution refrigerator will be used for studies of spin-polarized quantum systems. This refrigerator will be used in collaborative efforts to study atomic hydrogen with a Lyman-alpha laser, to study and develop a cryogenic hydrogen maser (CHM), to study atomic scattering at low temperatures, and a number of other experiments. The laser experiment is directed at obtaining conditions for Bose-Einstein condensation, which would be of fundamental significance for physics. In addition, the laser provides a valuable diagnostic tool for the study of atoms in magnetic traps. The CHM promises not only to be more stable than any existing oscillator, but by virtue of its stability will enable precise measurements of interaction constants in this fundamental system. Scattering experiments will enable the determination of many very important cross sections never before measured. A number of other experiments promise to yield rich new phenomena.