Does One Know the Properties of a MICE Solid or Liquid Absorber toBetter than 0.3 Percent?

Green, Michael A. ; Yang, Stephanie Q.

Lawrence Berkeley National Laboratory

关键词: Mice;    Dimensions;    Windows;    Thickness;    Helium;   

DOI  :  10.2172/918568
RP-ID  :  LBNL--60290
RP-ID  :  DE-AC02-05CH11231
RP-ID  :  918568

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report discusses the report discusses whether the MICE absorbers can be characterized to {+-}0.3 percent, so that one predict absorber ionization cooling within the absorber. This report shows that most solid absorbers can be characterized to much better than {+-}0.3 percent. The two issues that dominate the characterization of the liquid cryogen absorbers are the dimensions of the liquid in the vessel and the density of the cryogenic liquid. The thickness of the window also plays a role. This report will show that a liquid hydrogen absorber can be characterized to better than {+-}0.3 percent, but a liquid helium absorber cannot be characterized to better and {+-}1 percent.