LIFETIME OF THE 473-kev LEVEL IN Tm$sup 16$$sup 9$

Journal Article · Sun Jun 01 00:00:00 EDT 1958 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.110.1116· OSTI ID:4335207

Hatch, E N; Alburger, D E

The lifetime of the 473-kev level in Tm/sup 169/ has been investigated by means of an intermediate-image betaray spectrometer which was arranged for observing beta-gamma coincidences with a fast-slow coincidence system. From the distribution of delayed coincidences between 94-kev L-conversion electrons and K- capture x-rays, an upper limit for the half-life of the 473-kev level of 3 x 10/ sup -9/ sec is assigned. It is concluded that the rotational interpretation for this level is most likely the correct one. (auth)

• Research Organization: Brookhaven National Lab., Upton, N.Y.
• NSA Number: NSA-12-012666
• OSTI ID: 4335207
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 110; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BETA PARTICLES
BETA SPECTROMETERS
CAPTURE
COINCIDENCE METHODS
DECAY
ELECTRONS
ENERGY LEVELS
EXCITATION
GAMMA RADIATION
HALF-LIFE
INTERNAL CONVERSION
K-CAPTURE
MEASURED VALUES
NUCLEAR MODELS
PHYSICS
ROTATION
THULIUM 169
X RADIATION