Excitation of the Isomeric {sup 229m}Th Nuclear State via an Electronic Bridge Process in {sup 229}Th{sup +}

Journal Article · Fri Oct 29 04:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.182501· OSTI ID:21476593

Porsev, S G ^[1]; Flambaum, V V ^[1]; Peik, E; Tamm, Chr ^[2]

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1. School of Physics, University of New South Wales, Sydney, NSW 2052 (Australia)
2. Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig (Germany)

We consider the excitation of the nuclear transition {sup 229g}Th-{sup 229m}Th near 7.6 eV in singly ionized thorium via an electronic bridge process. The process relies on the excitation of the electron shell by two laser photons whose sum frequency is equal to the nuclear transition frequency. This scheme allows us to determine the nuclear transition frequency with high accuracy. Based on calculations of the electronic level structure of Th{sup +} which combine the configuration-interaction method and many-body perturbation theory, we estimate that a nuclear excitation rate in the range of 10 s{sup -1} can be obtained using conventional laser sources.

• OSTI ID: 21476593
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 105; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BOSONS
CHARGED PARTICLES
CONFIGURATION INTERACTION
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EVEN-ODD NUCLEI
EXCITATION
FERMIONS
HEAVY NUCLEI
IONS
ISOMERIC NUCLEI
ISOTOPES
LASER RADIATION
LEPTONS
MANY-BODY PROBLEM
MASSLESS PARTICLES
NUCLEAR STRUCTURE
NUCLEI
PERTURBATION THEORY
PHOTONS
RADIATIONS
RADIOISOTOPES
THORIUM 229
THORIUM IONS
THORIUM ISOTOPES
YEARS LIVING RADIOISOTOPES