title: Improved apparatus for trapped radical and other studies down to 1.5 K.
abstract: This note describes a Dewar system and associated apparatus for trapped free radical and other studies at temperatures down to 1.5 K. Cylindrical and rectangular microwave cavities can be used.
authors.affiliation: NASA Lewis Research Center, Cleveland, OH 44135, USA.
authors.forename: J A
authors.initials: JA
authors.lastname: Woollam
authors.forename: K
authors.initials: K
authors.lastname: Sugawara