Accession Number : AD0762714

Title :   The Rotational Relaxation of Molecular Hydrogen.

Descriptive Note : Technical rept.,

Corporate Author : PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS

Personal Author(s) : Gallagher,Robert J. ; Fenn,John B.

Report Date : JUN 1973

Pagination or Media Count : 39

Abstract : The rotational collision number, Z(r), has been determined experimentally for molecular hydrogen between 300 and 1900K from molecular beam measurements made in a supersonic free jet. The results are in reasonable agreement with the ultrasonic work of Winter and Hill over their common temperature range of 295-1073K. In terms of momentum transfer collisions, it was found that Z(r) is relatively insensitive to temperature. (Author)

Descriptors :   (*HYDROGEN, RELAXATION TIME), ROTATION, MOLECULAR ENERGY LEVELS, MOLECULAR BEAMS, INTERACTIONS

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE