Accession Number : AD0738595

Title :   Studies of Solid Helium Below 1.0K.

Descriptive Note : Final rept. 1 Feb 69-31 Jan 72,

Corporate Author : WESLEYAN UNIV MIDDLETOWN CONN

Personal Author(s) : Shen,Louis N. Y. ; Trefny,John U.

Report Date : FEB 1972

Pagination or Media Count : 6

Abstract : The report provides a summary of the research results obtained. The primary thrust of the work has been the development and application of heat pulse techniques to the study of condensed helium. Extensive work has been done on liquid He4 and on single crystals of He4. In the latter, diffusive, second-sound and ballistic modes of heat propagation have been observed and analyzed in terms of intrinsic properties of the system. This work has led to new information about solid helium, and has also revealed instrumental and interpretational subtleties associated with the heat pulse techniques used. (Author)

Descriptors :   (*SOLIDIFIED GASES, HELIUM), (*HELIUM, CONDUCTION(HEAT TRANSFER)), CRYOGENICS, TEMPERATURE SENSITIVE ELEMENTS, SUPERCONDUCTORS, TUNNELING(ELECTRONICS)

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE