New odd-parity Rydberg and autoionization levels in uranium I

Journal Article · Wed Jan 31 23:00:00 EST 1990 · Journal of the Optical Society of America, Part B: Optical Physics; (USA)

DOI:https://doi.org/10.1364/JOSAB.7.000145· OSTI ID:6982125

Ray, A K; Margo, V K; Lal, B; Rao, P R.K. ^[1]

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1. Multiple Disciplinary Research Scheme, Physics Group, Bhabha Atomic Research Center, Trombay, Bombay 400 085, India (IN)

We have observed new odd-parity Rydberg and autoionization levels in uranium I close to its first ionization limit. Our experimental configuration for ion detection and for pulsed electric-field ionization of Rydberg levels results in the observation of two groups of ions, the prompt photoions and delayed electric-field ions. The latter give information exclusively on Rydberg levels. The observed Rydberg progression suggests that a two-electron excitation process of the type 5{ital f}{sup 3}6{ital d}7{ital s}7{ital p}{r arrow}5{ital f}{sup 3}7{ital s}{sup 2}{ital ns} or {ital nd} is involved for the transitions to Rydberg states.

• OSTI ID: 6982125
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics; (USA), Journal Name: Journal of the Optical Society of America, Part B: Optical Physics; (USA) Vol. 7:2; ISSN JOBPD; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ACTINIDES
AUTOIONIZATION
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
IONIZATION
IONS
LASER RADIATION
METALS
PHOTOIONIZATION
RADIATIONS
RYDBERG STATES
SPECTRA
URANIUM
URANIUM IONS