TY - JOUR

T1 - Quenching of excited hydrogen atoms by H2 molecules

AU - Lavrov, B. P.

AU - Simonov, V. Ya

PY - 1992/12/1

Y1 - 1992/12/1

N2 - The spatial distribution of major electrical kinetic and optical parameters of a hydrogen discharge plasma with monoplasmatron geometry is measured. The data obtained were used as a basis for an analysis of the population and deactivation kinetics of atomic states with principal quantum numbers n = 3 to 6. It is established that quenching of excited atoms upon their collisions with molecules is an efficient channel for deactivating the above states. A comparison of the effective quenching cross sections obtained in the present work with the available literature data makes it possible to propose a mechanism of quenching of highly excited atoms upon their collisions with vibrationally-excited molecules. The effective cross sections of these processes are found for levels with n = 5 and 6.

AB - The spatial distribution of major electrical kinetic and optical parameters of a hydrogen discharge plasma with monoplasmatron geometry is measured. The data obtained were used as a basis for an analysis of the population and deactivation kinetics of atomic states with principal quantum numbers n = 3 to 6. It is established that quenching of excited atoms upon their collisions with molecules is an efficient channel for deactivating the above states. A comparison of the effective quenching cross sections obtained in the present work with the available literature data makes it possible to propose a mechanism of quenching of highly excited atoms upon their collisions with vibrationally-excited molecules. The effective cross sections of these processes are found for levels with n = 5 and 6.

UR - http://www.scopus.com/inward/record.url?scp=0026980838&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0026980838

VL - 9

SP - 1170

EP - 1175

JO - Soviet Journal of Chemical Physics (UK)

JF - Soviet Journal of Chemical Physics (UK)

SN - 0733-2831

IS - 5

ER -