Electronic energy transfer in argon--xenon mixtures excited by electron bombardment

Journal Article · Tue Feb 15 04:00:00 EST 1977 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.434079· OSTI ID:7321015

Gleason, R E; Bonifield, T D; Keto, J W; Walters, G K

The time dependences of the vacuum--ultraviolet emissions from xenon-doped argon are measured following pulsed excitation by a low intensity e-beam. The argon continuum at approx.1250 A is observed to be quenched in electronic energy transfer collisions with xenon atoms, forming Xe* (/sup 1/P/sub 1/), with the rate constant (4.39 +- 0.05) x 10/sup -10/ cm/sup 3//sec. The xenon continuum near 1470 A is found to be due to collision induced radiation from Xe* (/sup 3/P/sub 2/) with the rate constant (3.2 +- 0.7) x 10/sup -16/ cm/sup 3//sec, as well as radiation from high vibrational levels of Xe/sub 2/* (0/sub u//sup +/) which is formed from Xe* (/sup 3/P/sub 1/) and Xe(/sup 1/S/sub 0/) with the rate constant (2.1 +- 0.2) x 10/sup -31/ cm/sup 6//sec with argon as the third body. Collisional de-excitation of Xe* (/sup 3/P/sub 1/) to Xe* (/sup 3/P/sub 2/) by argon is observed with the rate constant (1.5 +- 0.3) x 10/sup -14/ cm/sup 3//sec. The xenon continuum at approx.1720 A is formed from Xe* (/sup 3/P/sub 2/) and Xe(/sup 1/S/sub 0/) with the rate constant (2.15 +- 0.25) x 10/sup -32/ cm/sup 6//sec with argon as the third body. (AIP)

• Research Organization: Physics Department, Rice University, Houston, Texas 77001
• OSTI ID: 7321015
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 66:4; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
BEAMS
BINARY MIXTURES
COLLISIONS
DISPERSIONS
ELECTRON BEAMS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
EMISSION SPECTRA
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITATION
LEPTON BEAMS
MIXTURES
NONMETALS
PARTICLE BEAMS
RARE GASES
SPECTRA
XENON