Research output: Contribution to journal › Article › peer-review
Determination of the coefficient of reflection of metastable argon atoms from the discharge tube wall. / Grigorian, G.M.; Dyatko, N.A.; Kochetov, I.V.
In: Plasma Physics Reports, No. 5, 2015, p. 434-440.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Determination of the coefficient of reflection of metastable argon atoms from the discharge tube wall
AU - Grigorian, G.M.
AU - Dyatko, N.A.
AU - Kochetov, I.V.
PY - 2015
Y1 - 2015
N2 - © 2015, Pleiades Publishing, Ltd.Radial profiles of the density of metastable atoms Ar(3P2) in the positive column of a dc glow discharge in argon were measured. Gas-discharge glass tubes with clean inner surfaces and surfaces covered with a carbonitride or carbon film were utilized. The parameters of the discharge plasma under experimental conditions were calculated in the framework of a one-dimensional (along the tube radius) discharge model. The coefficient K of reflection of Ar(3P2) atoms from the tube wall was estimated by comparing the measured and calculated density profiles. It is found that, for a clean tube wall, the coefficient of reflection is K = 0.4 ± 0.2, whereas for a wall covered with a carbonitride or carbon film, it is K <0.2.
AB - © 2015, Pleiades Publishing, Ltd.Radial profiles of the density of metastable atoms Ar(3P2) in the positive column of a dc glow discharge in argon were measured. Gas-discharge glass tubes with clean inner surfaces and surfaces covered with a carbonitride or carbon film were utilized. The parameters of the discharge plasma under experimental conditions were calculated in the framework of a one-dimensional (along the tube radius) discharge model. The coefficient K of reflection of Ar(3P2) atoms from the tube wall was estimated by comparing the measured and calculated density profiles. It is found that, for a clean tube wall, the coefficient of reflection is K = 0.4 ± 0.2, whereas for a wall covered with a carbonitride or carbon film, it is K <0.2.
U2 - 10.1134/S1063780X15050049
DO - 10.1134/S1063780X15050049
M3 - Article
SP - 434
EP - 440
JO - Plasma Physics Reports
JF - Plasma Physics Reports
SN - 1063-780X
IS - 5
ER -
ID: 4002214