supported by the National Natural Science Foundation of China(21073187,21273212,21173205);National Key Basic Research Program of China(973)(2010CB923302);100 Talents Program of Chinese Academy of Sciences;Knowledge Innovation Program of Chinese Academy of Sciences,and USTC-NSRL Joint Funds,China(KY2340000021)~~
The authors would like to thank Dr. Ze-feng Ren for the assistance with the design at the early stage, and Prof. Andrey Vilesov for helpful discussions. This work was supported by the Startup Grant of Dalian In- stitute of Chemical Physics, one Hundred Talents Pro- gram of Chinese Academy of Sciences, the Knowledge Innovation Program of Chinese Academy of Sciences, and the National Natural Science Foundation of China (No.21073187).
A new pulsed helium nano droplets machine has been constructed. The droplets were gener- ated by expansion of the pure helium through the cryogenic valve attached to a closed-cycle cryostat. The mean size of helium dr...