New prompt spectral gamma-ray data from the reaction Cf-252(sf) and its implication on present evaluated nuclear data files
Journal article, 2013

We present results from new spectral prompt gamma-ray measurements from the spontaneous fission of Cf-252. Apart from one recent experiment, about four decades have passed since the last dedicated experiments were reported in the literature. Hence, there was a need for a revision. We have measured prompt fission. rays with both cerium-doped LaBr3 and CeBr3 scintillation detectors, both of which exhibit excellent timing and good energy resolution. The emission yield was determined to be nu(gamma) = (8.30 +/- 0.08)/fission and nu(gamma) = (8.31 +/- 0.10)/fission, with the average energy of is an element of(gamma) = (0.80 +/- 0.01) MeV and is an element of(gamma) = (0.80 +/- 0.01) MeV and total energy of E-gamma,E-tot = (6.64 +/- 0.08) MeV and E-gamma,E-tot = (6.65 +/- 0.12) MeV, with the LaBr3 and CeBr3 detectors, respectively. Since the results from the two detectors are in excellent agreement and confirm the historical data, but not those in the present evaluated nuclear data files, we strongly recommend an update.

lacl3-ce

x-ray

fission

nai(tl) scintillators

performance

identification

labr3-ce

scintillation detectors

Author

Robert Billnert

Chalmers, Applied Physics, Subatomic Physics

F. J. Hambsch

Andreas Oberstedt

S. Oberstedt

Physical Review C - Nuclear Physics

24699985 (ISSN) 24699993 (eISSN)

Vol. 87 2 024601

Subject Categories

Subatomic Physics

DOI

10.1103/PhysRevC.87.024601

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