Production of excited atomic hydrogen and deuterium from H2 and D2photodissociation

Journal Article · Sun Sep 17 00:00:00 EDT 2006 · Journal of Physics B: Atomic and MolecularPhysics

DOI:https://doi.org/10.1088/0953-4075/39/23/006· OSTI ID:928383

Bozek, J D; Furst, J E; Gay, T J; Gould, H; Kilcoyne, A L.D.; Machacek, J R; Martin, F; McLaughlin, K W; Sanz-Vicario, J L

We have measured the production of both Ly alpha and H alphafluorescence from atomic H and D for the photodissociation of H2 and D2by linearly polarized photons with energies between 24 and 60 eV. In thisenergy range, excited photofragments result primarily from the productionof doubly excited molecular species which promptly autoionize ordissociate into two neutrals. Our data are compared with ab initiocalculations of the dissociation process, in which both doubly excitedstate production and prompt ionization (nonresonant) channels areconsidered. Agreement between our experimental data and that of earlierwork, and with our theoretical calculations, is qualitative atbest.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Advanced Light Source(ALS)
• Sponsoring Organization: USDOE Director. Office of Science. Basic Energy Sciences; DGI Project BFM2003-00194, NSF PHY-0354946 and PHY-0321055; European COSTAction D26/0002/02
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 928383
• Report Number(s): LBNL-62918; R&D Project: 458112; BnR: KC0204016; TRN: US200815%%629
• Journal Information: Journal of Physics B: Atomic and MolecularPhysics, Vol. 39, Issue 23; Related Information: Journal Publication Date: 10 November2006
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
08 HYDROGEN
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DEUTERIUM
DISSOCIATION
ENERGY RANGE
EXCITED STATES
FLUORESCENCE
HYDROGEN
IONIZATION
PHOTONS
PRODUCTION
Hydrigen Deuterium Photodissociation ResonantExcitation