A liquid-helium cold cell for use with an x-ray diffractometer

Abstract

A l iquid-helium cold cell for u ~e lI'i th th e General };lecL l'i c X-ra," gonio nH't,(' 1' ha,; be('n d e,; igll ecl and con,;truetl'd . It is II sed to ob ta in X-ray d iffra c t,io n pHl't.(' I' 11 '; o f pol,\"C ry ~t a liin l' ,;olids d (' posi tecl from I'.lll' ga seo Li s phase on a hl'lium-cooll'cI s urface, Thi, 11'01'1, i,; p:lr t of [' he program fo r st udyin g t he stabi li 7,fI,tioll o f fr('(' radi cal s.