The Design and Construction of a Helium Dewar System

Abstract

THE PURPOSE OF THIS PAPER IS TO PRESENT ASPECTS OF THE DESIGN AND CONSTRUCTION OF A HELIUM DEWAR SYSTEM. AN EXTENSIVE BACKGROUND SECTION PRESENTS THE READER WITH A FOUNDATION IN THE PROBLEMS OF DEWAR SYSTEM DESIGN. THE DESCRIPTION OF THE PHYSICAL PLANT ATTEMPTS TO REFLECT THE AUTHOR'S EFFORTS TO MODULARIZE AND SIMPLIFY THE CONSTRUCTION OF THE SYSTEM. THE HELIUM FOUNTAIN EXPERIMENT WAS CARRIED OUT DURING ONE OF THE TRIALS OF THE SYSTEM. BECAUSE OF ITS INTERESTING CHARACTERISTICS A DESCRIPTION OF IT HAS BEEN INCLUDED IN THE PAPER.