DECAY OF Pm$sup 14$$sup 4$

Journal Article · Sat Aug 15 00:00:00 EDT 1959 · Physical Review (U.S.) Superseded in part by Phys.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.115.1004· OSTI ID:4232142

Toth, K S; Nielsen, O B

Pm/sup 144/ was produced by an ( alpha ,n) reaction on Pr/sup 144/ in the Copenhagen cyclotron. The half-life of Pm/sup 144/ was determined and found to be closer to 450 days than to the previously reported 300 days. The decay of the nuclide to levels in Nd/sup 144/ was studied, using a 100-channel gammaray analyzer and a six-gap beta -ray spectrometer. Three gamma rays were found, with the following energies: 474, 615, and 695 kev, respectively. It was determined that the three gamma rays are E2 transitions and that they are in cascade with one another. A decay scheme for Pm/sup 144/, consistent with the experimental data, was proposed. (auth)

• Research Organization: Univ. of Copenhagen
• NSA Number: NSA-14-003024
• OSTI ID: 4232142
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 115; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA BEAMS-- CYCLOTRONS-- MEASURED VALUES-- NEUTRONS-- NUCLEAR REACTIONS-- PRASEODYMIUM 141-- PRODUCTION-- PROMETHIUM 144
BETA DECAY-- DECAY-- ENERGY LEVELS-- GAMMA RADIATION-- MEASURED VALUES-- NEODYMIUM 144-- PROMETHIUM 144
BETA SPECTROMETERS-- MEASURED VALUES-- PROMETHIUM 144
DECAY-- HALF- LIFE-- MEASURED VALUES-- PROMETHIUM 144
GAMMA SPECTROMETERS-- MEASURED VALUES-- PROMETHIUM 144-- PULSE ANALYZERS
PHYSICS