Rydberg levels and ionization potential of francium measured by laser-resonance ionization in a hot cavity

Journal Article · Sat Oct 01 00:00:00 EDT 1988 · J. Opt. Soc. Am. B: Opt. Phys.; (United States)

DOI:https://doi.org/10.1364/JOSAB.5.002190· OSTI ID:6763772

Andreev, S V; Mishin, V I; Letokhov, V S

A highly sensitive method of detecting atoms in samples has been used for spectral investigations of the rare radioactive element Fr. The method is based on laser-resonance photoionization of Fr atoms in a hot quasi-enclosed cavity. The investigations have been carried out with samples in which short-lived radioactive /sup 221/Fr atoms formed at a rate of approximately 10/sup 3/ atoms/sec. The data obtained, to our knowledge for the first time, on the energies of the high-lying Rydberg levels of the /sup 2/S/sub 1/2/ and /sup 2/D series have made it possible to determine the electron binding energy of the 7p /sup 2/P/sub 3/2/ state and to establish the ionization potential of Fr accurately.

• Research Organization: Institute of Spectroscopy, USSR Academy of Sciences, 142092 Troitsk, Moscow Region, USSR
• OSTI ID: 6763772
• Journal Information: J. Opt. Soc. Am. B: Opt. Phys.; (United States), Vol. 5:10
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
FRANCIUM
IONIZATION POTENTIAL
PHOTOIONIZATION
RYDBERG STATES
DETECTION
ENERGY LEVELS
EXPERIMENTAL DATA
LASER SPECTROSCOPY
RESONANCE
SAMPLE HOLDERS
ALKALI METALS
DATA
ELEMENTS
EXCITED STATES
INFORMATION
IONIZATION
METALS
NUMERICAL DATA
SPECTROSCOPY
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory