Numerical solution to the Boltzmann equation for use in calculating pumping rates in a CO sub 2 discharge laser. Master's thesis

Technical Report · Fri Dec 01 00:00:00 EST 1989

OSTI ID:7196165

Honey, D A

The collisional Boltzmann equation was solved numerically to obtain excitation rates for use in a CO{sub 2} laser design program. The program was written in Microsoft QuickBasic for use on the IBM Personal Computer or equivalent. Program validation involved comparisons of computed transport coefficients with experimental data and previous theoretical work. Four different numerical algorithms were evaluated in terms of accuracy and efficiency. L-U decomposition was identified as the preferred approach. The calculated transport coefficients were found to agree with empirical data within one to five percent. The program was integrated into a CO{sub 2} laser design program. Studies were then performed to evaluate the effects on predicted laser output power and energy density as parameters affecting electron kinetics were changed. Plotting routines were written for both programs.

• Research Organization: Air Force Inst. of Tech., Wright-Patterson AFB, OH (USA). School of Engineering
• OSTI ID: 7196165
• Report Number(s): AD-A-216376/4/XAB; AFIT/GEP/ENP-89D-5
• Resource Relation: Other Information: Thesis
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BOLTZMANN EQUATION
NUMERICAL SOLUTION
CARBON DIOXIDE LASERS
DESIGN
ALGORITHMS
COLLISIONS
DENSITY
ELECTRONS
ENERGY
EXCITATION
EXPERIMENTAL DATA
KINETICS
MICROCOMPUTERS
NUMERICAL ANALYSIS
POWER
PUMPING
TRANSPORT THEORY
VALIDATION
COMPUTERS
DATA
DIFFERENTIAL EQUATIONS
DIGITAL COMPUTERS
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
EQUATIONS
FERMIONS
GAS LASERS
INFORMATION
LASERS
LEPTONS
MATHEMATICAL LOGIC
MATHEMATICS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
TESTING
426002* - Engineering- Lasers & Masers- (1990-)