Kinetic processes in high pressure gases: excited state collisions. Technical report Dec 79-Dec 80
A nitrogen-pumped dye laser system has been used to investigate the 3(2P) yields n(2)D(3/2), (5/2) and 3(2P)(1/2), 3-2 yields n(2)S(1/2) (6 < or = n < or = 22) line profiles for sodium perturbed by .2 to 2 Amagats of argon. Sodium was ionized in a stepwise process which incorporated one of the above resonant transitions as an intermediate step. The relative ion yield was determined as a function of laser wavelength and the resulting data analyzed to obtain absorption profiles and line shifts for nd, ns yields 3p transitions. We report the total Penning ionization cross sections for He(2(3)S(1)) atoms incident on Cd and Zn. The measurements are made for relative collision velocities above thermal by using a beam. Previous metal vapor studies of Cd and Zn have been confined to thermal velocities in pulsed after-glow experiments. We also report the observation of HgBr(B-X) fluorescence resulting from collisions of HgBr2 with a vibrationally excited beam of nitrogen molecules in the A(3) sigma (+) (mu) electronic state.
- Research Organization:
- Missouri Univ., Rolla (USA). Dept. of Physics
- DOE Contract Number:
- N00014-75-C-0477
- OSTI ID:
- 6115359
- Report Number(s):
- AD-A-092683
- Country of Publication:
- United States
- Language:
- English
Similar Records
I. Coherence effects in Penning ionization. III. Volume recombination processes at high pressures. Technical report no. 12, Dec 1977-Dec 1978
Penning ionization: measurement of ion and molecular lifetimes. Report No. 11 (annual), 1 Dec 76--1 Dec 77. [Univ. of Missouri, Rolla]
Related Subjects
ATOM COLLISIONS
PENNING EFFECT
BROMIDES
MOLECULE-MOLECULE COLLISIONS
CADMIUM
HELIUM
COLLISIONS
MERCURY COMPOUNDS
EXCITATION
NITROGEN
SODIUM
SPECTRAL SHIFT
ZINC
ARGON
CROSS SECTIONS
DISSOCIATION
DYE LASERS
EXCITED STATES
FLUORESCENCE
LASER RADIATION
LINE BROADENING
P STATES
PHOTOIONIZATION
S STATES
ALKALI METALS
BROMINE COMPOUNDS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
IONIZATION
LASERS
LIQUID LASERS
LUMINESCENCE
METALS
MOLECULE COLLISIONS
NONMETALS
RADIATIONS
RARE GASES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena