Examination of argon metastable atom velocity distribution function close to a conducting wall

N. Claire 1 S. Mazouffre 2 C. Rebont 1 F. Doveil 1
1 PIIM - Physique des interactions ioniques et moléculaires
2 ICARE - Institut de Combustion, Aérothermique, Réactivité et Environnement
Abstract : Experimental study of the ion current to a cylindrical Langmuir probe taking into account a finite ion temperature J. Appl. Phys. 111, 063303 (2012) On the generation and disruption of a picosecond runaway electron beam during the breakdown of an atmospheric-pressure gas gap Appl. Phys. Lett. 100, 134102 (2012) First-order finite-Larmor-radius fluid modeling of tearing and relaxation in a plasma pinch Phys. Plasmas 19, 055905 (2012) Additional information on Phys. Plasmas The spatial evolution of the 1s 5 metastable argon atom velocity distribution function is recorded in the sheath and pre-sheath regions of a metallic wall using laser induced fluorescence (LIF) spectroscopy. Metastable argon atom temperature and fluid velocity are computed from measured data. Owing to the loss of metastable argon atom after a collision with the surface, the atom temperature seemingly decreases and the velocity increases when approaching the wall. These artifacts are carefully examined and explained in terms of changes in the metastable argon atom distribution function. In addition, the atom nonelastic reflection coefficient is computed from the ratio of outward to inward atom flux to the surface. This study indicates less than 1% of metastable atoms survive a collision with the metallic wall
Document type :
Journal articles
Complete list of metadatas

Cited literature [23 references]  Display  Hide  Download
https://hal.archives-ouvertes.fr/hal-01787091
Contributor : Nicolas Claire <>
Submitted on : Thursday, April 18, 2019 - 12:01:18 PM
Last modification on : Friday, May 10, 2019 - 1:35:17 AM

File

Claire2012.pdf
Publisher files allowed on an open archive

Identifiers

Collections

CNRS | UNIV-AMU | PIIM | UNIV-ORLEANS | CNRS_ICARE

Citation

N. Claire, S. Mazouffre, C. Rebont, F. Doveil. Examination of argon metastable atom velocity distribution function close to a conducting wall. Physics of Plasmas, American Institute of Physics, 2012, 19 (3), pp.32108 - 32108. ⟨10.1063/1.3692729⟩. ⟨hal-01787091⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

59

Files downloads

79

Contact

Informations

CCSD