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Title: uv preionized thallium-mercury discharge

Abstract

Stable glow discharges have been demonstrated in thallium-mercury gas mixtures at mercury densities of 3 x 10/sup 19/ and temperatures of 500--900 /sup 0/C. These discharges have shown themselves to be highly efficient in producing excited Tl (7/sup 2/S/sub 1/2/) atoms and Tl-Hg B/sup 2/summation/sub 1/2/ excimer molecules. Discharge efficiency as high as 30 +- 10% in producing Tl (7/sup 2/S/sub 1/2/) and Tl-Hg B/sup 2/summation/sub 1/2/ points to the possibility of the creation of a Tl-Hg excimer laser operating at similar efficiencies. These highly efficient discharges are thought to be due to very fast transfer of energy from mercury excimers into Tl-Hg. The transfer cross section from excited molecular mercury to Tl (7/sup 2/S/sub 1/2/) and Tl-Hg excimers is found to be approximately 1.2 x 10/sup -14/ cm/sup 2/.

Authors:
; ; ;
Publication Date:
Research Org.:
Air Force Weapons Laboratory (AFSC), Kirtland AFB, New Mexico 87117
OSTI Identifier:
6758913
Alternate Identifier(s):
OSTI ID: 6758913
Resource Type:
Journal Article
Journal Name:
J. Appl. Phys.; (United States)
Additional Journal Information:
Journal Volume: 50:2
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; GAS LASERS; EXCITATION; EFFICIENCY; ENERGY TRANSFER; EXCITED STATES; GLOW DISCHARGES; IONIZATION; MERCURY; STABILIZATION; THALLIUM; ULTRAVIOLET RADIATION; ELECTRIC DISCHARGES; ELECTROMAGNETIC RADIATION; ELEMENTS; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; LASERS; METALS; RADIATIONS 420300* -- Engineering-- Lasers-- (-1989)

Citation Formats

Hamil, R.A., Drummond, D.L., Schlie, L.A., and Benedict, R.P. uv preionized thallium-mercury discharge. United States: N. p., 1979. Web. doi:10.1063/1.326077.
Hamil, R.A., Drummond, D.L., Schlie, L.A., & Benedict, R.P. uv preionized thallium-mercury discharge. United States. doi:10.1063/1.326077.
Hamil, R.A., Drummond, D.L., Schlie, L.A., and Benedict, R.P. Thu . "uv preionized thallium-mercury discharge". United States. doi:10.1063/1.326077.
@article{osti_6758913,
title = {uv preionized thallium-mercury discharge},
author = {Hamil, R.A. and Drummond, D.L. and Schlie, L.A. and Benedict, R.P.},
abstractNote = {Stable glow discharges have been demonstrated in thallium-mercury gas mixtures at mercury densities of 3 x 10/sup 19/ and temperatures of 500--900 /sup 0/C. These discharges have shown themselves to be highly efficient in producing excited Tl (7/sup 2/S/sub 1/2/) atoms and Tl-Hg B/sup 2/summation/sub 1/2/ excimer molecules. Discharge efficiency as high as 30 +- 10% in producing Tl (7/sup 2/S/sub 1/2/) and Tl-Hg B/sup 2/summation/sub 1/2/ points to the possibility of the creation of a Tl-Hg excimer laser operating at similar efficiencies. These highly efficient discharges are thought to be due to very fast transfer of energy from mercury excimers into Tl-Hg. The transfer cross section from excited molecular mercury to Tl (7/sup 2/S/sub 1/2/) and Tl-Hg excimers is found to be approximately 1.2 x 10/sup -14/ cm/sup 2/.},
doi = {10.1063/1.326077},
journal = {J. Appl. Phys.; (United States)},
number = ,
volume = 50:2,
place = {United States},
year = {1979},
month = {2}
}