Excitation of Balmer lines in low-current discharges of hydrogen and deuterium

Journal Article · Fri May 15 00:00:00 EDT 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.45.7463· OSTI ID:7113718

Stokic, Z; Fraga, M M.F.R.; Bozin, J; Stojanovic, V; Petrovic, Z L; Jelenkovic, B M ^[1]

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1. Institute of Physics, P. O. Box 57, 11000 Belgrade (Yugoslavia)

Measurements have been made of electron-impact ionization and excitation of Balmer lines in low-current, steady-state discharges of hydrogen and deuterium. Results were obtained from spatial scans of H{sub {alpha}} lines for {ital E}/{ital N} ranging from 250 Td to 10 kTd. Here {ital E} is the electric field, {ital N} is the gas density, and 1 Td=10{sup {minus}21} V m{sup 2}. Ionization and excitation coefficients versus {ital E}/{ital N} are presented for {ital E}/{ital N} between 250 and 1800 Td, and {ital Nd} (where {ital d} denotes the gap length) between 2.3{times}10{sup 22} and 1.7{times}10{sup 21} m{sup {minus}2}. Excitation coefficients obtained for H{sub {alpha}} and D{sub {alpha}} are placed on an absolute scale using a standard tungsten lamp calibrated against the blackbody radiation standard. The ionization coefficients are compared with previous experimental and theoretical data, while the excitation coefficients are compared with the calculated values.

• OSTI ID: 7113718
• Journal Information: Physical Review A. General Physics; (United States), Vol. 45:10; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DEUTERIUM
BALMER LINES
HYDROGEN
ELECTRIC DISCHARGES
ELECTRIC FIELDS
EMISSION SPECTRA
EXCITATION
IONIZATION
PARAMETRIC ANALYSIS
PRESSURE EFFECTS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NONMETALS
NUCLEI
ODD-ODD NUCLEI
SPECTRA
STABLE ISOTOPES
664100* - Theory of Electronic Structure of Atoms & Molecules- (1992-)