On the energy of the 3.5-eV level in {sup 229}Th

Journal Article · Fri Jan 15 04:00:00 EST 2010 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778810010011· OSTI ID:21426796

Sakharov, S L ^[1]

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1. Russian Academy of Sciences, Petersburg Nuclear Physics Institute (Russian Federation)

Values determined in several studies for the first isomeric state of {sup 229}Th as 3.5(10), 3.4(18), 5.5(10), and 7.6(5) eV differ markedly from one another. A comparison of the first two studies that was performed in the present article indicates that there is a systematic error in the energies of the transitions in {sup 229}Th. It is shown that each of the first two values is dependent on the placement or energy of only one transition (or on both of these two factors). The third value, that of 5.5(10) eV, is not independent, since it is a result of rather complicated calculations for the scheme of energy levels in {sup 229}Th with allowance for the first two studies. It is shown that the accuracy in determining the error in 7.6(5) eV is likely to be exaggerated. It is concluded that the energy of the 3.5-eV state ranges between 0 and 15 eV.

• OSTI ID: 21426796
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 1 Vol. 73; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
COMPARATIVE EVALUATIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
ERRORS
EV RANGE
EVALUATION
EVEN-ODD NUCLEI
HEAVY NUCLEI
ISOMERIC NUCLEI
ISOTOPES
NUCLEI
RADIOISOTOPES
THORIUM 229
THORIUM ISOTOPES
YEARS LIVING RADIOISOTOPES