Energy separation of the doublet of intrinsic states at the ground state of sup 229 Th

Journal Article · Mon Jan 15 04:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.271· OSTI ID:6933471

Reich, C W; Helmer, R G ^[1]

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1. Idaho National Engineering Laboratory, EG G Idaho, Incorporated, Idaho Falls, Idaho 83415 (US)

It has been known from some time that the intrinsic state labeled by the asymptotic quantum numbers (3/2){sup +}(631) lies quite close ({lt}0.1 keV) to the (5/2){sup +}(633) ground state of {sup 229}Th. Using the energies of selected {gamma} rays emitted following the {alpha} decay of {sup 233}U, we have obtained a value of 1{plus minus}4 eV for the energy separation of these two intrinsic states.

• DOE Contract Number: AC07-76ID01570
• OSTI ID: 6933471
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:3; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
COLLECTIVE MODEL
COULOMB ENERGY
DECAY
DETECTION
E2-TRANSITIONS
ENERGY
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 01-10
EV RANGE 100-1000
EVEN-ODD NUCLEI
GAMMA DETECTION
GAMMA SPECTRA
GROUND STATES
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
ISOTOPES
M1-TRANSITIONS
MATHEMATICAL MODELS
MULTIPOLE TRANSITIONS
NEON 24 DECAY RADIOISOTOPES
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEI
RADIATION DETECTION
RADIOISOTOPES
SPECTRA
THORIUM 229
THORIUM ISOTOPES
URANIUM 233
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES