sixc-~~~-230 October 1966 TESTS ON SCOTCHLITE? PLACED IN A SIMULATED HYDROGEN CHAMBER*

It was decided at SLAC to use removable liners mechanically mounted to the chamber walls and the piston. This would allow faster replacement of the pre-fabricated units, should the Scotchlite be damaged, without the need to chisel the remains of the material from chamber walls. The problems of eddy current heating of the piston further required that the piston liner be an insulator. It seemed natural, therefore, to use fiberglass-epoxy laminant as the liner material, because its suitability for cryogenic use has already been demonstrated. 3 The problem, therefore, was to develop a satisfactory method to glue Scotchlite to the fiberglass panels.