Accession Number : ADA194611

Title :   Measurements of XeF (Xenon Fluoride) Ground State Dissociation and Vibrational Equilibration.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA AEROPHYSICS LAB

Personal Author(s) : Bott, J F ; Heidner, R F ; Holloway, J S ; Koffend, J B ; Kwok, M A

PDF Url : ADA194611

Report Date : 25 Mar 1988

Pagination or Media Count : 41

Abstract : The removal rates of the lower levels of the laser transitions affect the efficiency of the XeF excimer laser performance. We have deduced the removal rates of XeF(X,v) in argon, helium, and neon by measuring the populations of v = 0 and 1 vibrational levels formed by the photolysis of XeF2. The time history of each vibrational population is monitored with a cw tunable dye laser tuned to an absorption feature of the selected vibrational/rotational level. The studies show a rapid vibrational relaxation of v = 0 and v = 1 levels followed by a common decay rate of the two levels. Helium and neon were found to remove these levels with the same rate coefficient of (2.0 + or - 0.2) x 10 to the 4th/(sec-Torr)-1 at room temperature. The rate coefficient for argon were faster by about 25%. The removal rate coefficients increased with temperature in the range of 23 to 95 C.

Descriptors :   *CONTINUOUS WAVE LASERS, *DYE LASERS, *TUNABLE LASERS, *XENON, ABSORPTION, ARGON, COEFFICIENTS, DECAY, DISSOCIATION, EXCIMERS, FLUORIDES, GROUND STATE, HELIUM, HISTORY, LASERS, LEVEL(QUANTITY), LOW LEVEL, NEON, PERFORMANCE(ENGINEERING), POPULATION, RATES, RELAXATION, REMOVAL, ROTATION, TIME, TRANSITIONS, VIBRATION

Subject Categories : Inorganic Chemistry
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE