Accession Number : AD0601054
Title : DRASTIC REDUCTION OF WARM-UP RATE WITHIN A DEWAR SYSTEM BY HELIUM DESORPTION.
Descriptive Note : Physical Sciences research papers
Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS
Personal Author(s) : Gianino,Peter D.
Report Date : JAN 1964
Pagination or Media Count : 12
Abstract : A method is described whereby the time rate of temperature change is drastically reduced within a glass double-dewar system over the interval 4.2 to 77K. The problem of reducing the rate of change is solved successfully by inserting a small amount of activated charcoal in the inner dewar. The explanation of why it succeeds is presented and results are given showing the drastic reduction of warm-up rate for various amounts of charcoal. Some advantages of such a simple scheme are listed. (Author)
Descriptors : (*CRYOGENICS, CONTAINERS), (*CONTAINERS, CRYOGENICS), TEMPERATURE CONTROL, CHARCOAL, THERMAL INSULATION, HELIUM
Distribution Statement : APPROVED FOR PUBLIC RELEASE