TY - GEN
T1 - A 2-photon LIF study on the expansion behaviour of a plasma beam generated from a mixture of Ar and H/sub 2/
AU - Mazouffre, S.
AU - Boogaarts, M.G.H.
AU - Bakker, I.S.J.
AU - Mullen, van der, J.J.A.M.
AU - Schram, D.C.
PY - 1999
Y1 - 1999
N2 - In an expanding plasma created by a cascaded arc from a Ar-H/sub 2/ mixture, spatially resolved densities, temperatures, and velocities of ground state atomic hydrogen are obtained by applying two-photon excitation laser induced fluorescence. The axial velocity profile of H indicates a strong coupling between Ar and H atoms. However, the atomic hydrogen density and temperature profiles cannot be fully described in terms of a supersonic expansion model in contrast with the profiles of Ar. There are several indications that hydrogen atoms can escape the supersonic domain by a scattering process
AB - In an expanding plasma created by a cascaded arc from a Ar-H/sub 2/ mixture, spatially resolved densities, temperatures, and velocities of ground state atomic hydrogen are obtained by applying two-photon excitation laser induced fluorescence. The axial velocity profile of H indicates a strong coupling between Ar and H atoms. However, the atomic hydrogen density and temperature profiles cannot be fully described in terms of a supersonic expansion model in contrast with the profiles of Ar. There are several indications that hydrogen atoms can escape the supersonic domain by a scattering process
M3 - Conference contribution
T3 - LRP / Ecole Polytechnique Fédérale de Lausanne
SP - 265
EP - 268
BT - Frontiers in low temperature plasma diagnostics III : book of papers ; Saillon, Switzerland, 15. - 19.2.1999
PB - Ecole Polytechnique Fédérale de Lausanne
CY - Lausanne
T2 - Frontiers in Low Temperature Plasma Diagnostics III, February 15-19, 1999, Saillon, Switzerland
Y2 - 15 February 1999 through 19 February 1999
ER -