LeHavreV1, Main, Exploration, bibRecord, 000839

Collisional production of fast metastable hydrogen atoms from cold H2: toward twin atoms

Identifieur interne : 000839 ( Main/Exploration ); précédent : 000838; suivant : 000840

Collisional production of fast metastable hydrogen atoms from cold H2: toward twin atoms

Auteurs : Aline Medina [France, Brésil] ; G. Rahmat [France] ; C R De Carvalho [France, Brésil] ; Ginette Jalbert [France, Brésil] ; F. Zappa [Brésil] ; R F Nascimento [Brésil] ; R. Cireasa [France] ; N. Vanhaecke [France] ; Ioan F. Schneider [France] ; N V De Castro Faria [France, Brésil] ; J. Robert [France]

Source :

Journal of Physics B: Atomic, Molecular and Optical Physics [ 0953-4075 ] ; 2011.

RBID : ISTEX:7C7C356D9834ED4CCD0B4E575DCD7B22D48FA8F7

Abstract

We have investigated the production of fast metastable H(22S) coming from the dissociation of cold H2 molecules produced in a Campargue nozzle beam after crossing with an electron beam emerging from a high intensity pulsed electron gun. We have achieved dissociation by electron impact in order to avoid limitations due to the selection rules governing radiative transitions. Two detectors, placed 230 and 254 mm away from the collision centre, have analysed the neutral fragments as a function of their time-of-flight through localized quenching of H(22S) in H(22P) and Lyman- detection. Performing coincidence experiments in order to ascertain the existence of the H(22S)H(22S) dissociation channel is appealing due to the anlysis of the spectra.

Url:

https://api.istex.fr/document/7C7C356D9834ED4CCD0B4E575DCD7B22D48FA8F7/fulltext/pdf

DOI: 10.1088/0953-4075/44/21/215203

Affiliations:

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Le document en format XML

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<front><div type="abstract">We have investigated the production of fast metastable H(22S) coming from the dissociation of cold H2 molecules produced in a Campargue nozzle beam after crossing with an electron beam emerging from a high intensity pulsed electron gun. We have achieved dissociation by electron impact in order to avoid limitations due to the selection rules governing radiative transitions. Two detectors, placed 230 and 254 mm away from the collision centre, have analysed the neutral fragments as a function of their time-of-flight through localized quenching of H(22S) in H(22P) and Lyman- detection. Performing coincidence experiments in order to ascertain the existence of the H(22S)H(22S) dissociation channel is appealing due to the anlysis of the spectra.</div>
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Collisional production of fast metastable hydrogen atoms from cold H2: toward twin atoms

Collisional production of fast metastable hydrogen atoms from cold H2: toward twin atoms

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Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri