Excitation of the 1s5 and 1s4 levels of neon by low-energy electrons
Technical Report
·
OSTI ID:5586197
Excitation coefficients for production of 1s4 levels (Paschen notation) of neon in collisions with low-energy electrons have been measured using drift tube technique combined with laser absorption and laser-induced fluorescence techniques. The absorption and fluorescence signals were analyzed using coupled rate equations which include the effects of population mixing among these levels in collisions with neon atoms. The excitation coefficients for the metastable and resonance levels alpha sub mv/N and alpha sub r/N were obtained as functions of the electric field to gas density ratio E/NM. The measured values of alpha m/N vary from 1.3X10/sup -24/ m2 at E/N = 1.6X10/sup 21/ Vm/sup 2/ to 6.5X1-10/sup 22/ m2 at 3.0X10/sup 19/ V m/sup 2/. The values of alpha sub r/N are comparable in the experimental E/N range. The experimental excitation coefficients are in agreement with values calculated from a Boltzmann analysis using a recommended set of electron excitation cross sections derived from published experimental electron beam data.
- Research Organization:
- Joint Inst. for Lab. Astrophysics, Boulder, CO (USA)
- OSTI ID:
- 5586197
- Report Number(s):
- AD-A-186955/1/XAB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Excitation of the 1s/sub 5/ and 1s/sub 4/ levels of neon by low-energy electrons
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OSTI ID:4148211
Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ATOM COLLISIONS
ATOMS
BEAMS
BOLTZMANN EQUATION
COLLISIONS
CROSS SECTIONS
DATA
DENSITY
DIFFERENTIAL EQUATIONS
ELECTRIC FIELDS
ELECTRODES
ELECTRON BEAMS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
EXPERIMENTAL DATA
FLUIDS
FLUORESCENCE
GASES
INFORMATION
LASERS
LEPTON BEAMS
LUMINESCENCE
MIXING
NEON
NONMETALS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE BEAMS
PHYSICAL PROPERTIES
RARE GASES
RESONANCE
SIGNALS
SPECTRA
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ATOM COLLISIONS
ATOMS
BEAMS
BOLTZMANN EQUATION
COLLISIONS
CROSS SECTIONS
DATA
DENSITY
DIFFERENTIAL EQUATIONS
ELECTRIC FIELDS
ELECTRODES
ELECTRON BEAMS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
EXPERIMENTAL DATA
FLUIDS
FLUORESCENCE
GASES
INFORMATION
LASERS
LEPTON BEAMS
LUMINESCENCE
MIXING
NEON
NONMETALS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE BEAMS
PHYSICAL PROPERTIES
RARE GASES
RESONANCE
SIGNALS
SPECTRA