Comparison of model predictions with detailed species kinetic measurements of XeCl laser mixtures

Journal Article · Sat Sep 15 04:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.346486· OSTI ID:6241512

Kannari, F; Kimura, W D; Ewing, J J ^[1]

---

1. Spectra Technology, Inc., Bellevue, WA (USA)

Detailed measurements of the time-dependent electron density, xenon excited-state densities, and total HCl depletion have been recently made in electron-beam- ({ital e}-beam-) pumped XeCl. This paper presents the results of extensive computer modeling of these experiments and detailed comparisons with the measured results. The model used includes updated HCl reaction cross sections and an enlarged xenon excited-state manifold. A reduced Boltzmann equation is used to calculate the high-energy electron-energy distribution function, and the low-energy distribution function assumes a quasi-Maxwellian distribution. These changes are upgrades to prior models. The model accurately predicts the total HCl depletion, the time-dependent electron density for initial HCl concentrations {ge}0.16% (4.8 Torr), and the time-dependent xenon excited-state densities for lean ({approx equal}0.04%) initial HCl concentration cases. The model tends to underpredict the rate of electron-density growth after the electron density begins to run away. Since depletion of HCl is a key factor in understanding the kinetics data, possible mechanisms that can contribute to this process are also discussed.

• OSTI ID: 6241512
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 68:6; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
BOLTZMANN EQUATION
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMPUTERIZED SIMULATION
CROSS SECTIONS
DIFFERENTIAL EQUATIONS
ELECTRICAL PUMPING
ELECTRON BEAM PUMPING
EQUATIONS
EXCIMER LASERS
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LASERS
PARTIAL DIFFERENTIAL EQUATIONS
PUMPING
RARE GAS COMPOUNDS
SIMULATION
XENON CHLORIDES
XENON COMPOUNDS