Emission of the H/sub. cap alpha. / and H/sub. beta. / lines excited by electron impact on H/sub 2/

Journal Article · Thu May 15 04:00:00 EDT 1980 · J. Chem. Phys.; (United States)

OSTI ID:5459989

Ortiz, M; Campos, J

The delayed coincidence method has been used to obtain the intensity decay curves of the two first lines of the Balmer's series of atomic hydrogen. The excited hydrogen atoms have been produced by electron impact on H/sub 2/ followed by dissociation. The measurements were made at pressures in the range 1--25 mTorr and with electron energies in the range 15--100 eV. From this experiment, the lifetimes of the 3s, 3d, 4s, 4p, and 4d excited levels have been deduced. The obtained values are in agreement with the theoretical data. The relative contributions of the nl states to the total H/sub ..cap alpha../ and H/sub ..beta../ lines have been found.

• Research Organization: Junta de Energia Nuclear, Division de Fisica, Ciudad Universitaria, Madrid 3, Spain
• OSTI ID: 5459989
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 72:10; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
BALMER LINES
COLLISIONS
CRYOGENIC FLUIDS
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
HYDROGEN
MOLECULE COLLISIONS
NONMETALS
SPECTRA