Energy levels of /sup 249/Cm from measurements of thermal neutron capture gamma rays

Journal Article · Sat May 01 04:00:00 EDT 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.25.2232· OSTI ID:5019204

Hoff, R W; Davidson, W F; Warner, D D; Boerner, H G; von Egidy, T

The excited levels of /sup 249/Cm have been determined by use of neutron-capture gamma-ray spectroscopy. Gamma-ray measurements were made with curved-crystal spectrometers of focal lengths 5.8 and 24 m and a pair spectrometer. These experimental data represent the first measurement of gamma transitions depopulating the levels of /sup 249/Cm. We present evidence for the population of 23 levels in /sup 249/Cm up to 1300-keV excitation. The following new configuration assignments were made (listed with the corresponding bandhead energies): (5/2)/sup +/(622), 529.58 keV; (3/2)/sup -/(752), 772.74 keV; (1/2)/sup -/(501), 917.49 keV. Comparison of the experimentally determined level structure with theoretical calculations shows best agreement with calculations by Soloviev's group where a Woods-Saxon potential form was used and quasiparticle-phonon coupling was included. The neutron binding energy was determined to be 4713.7 +- 0.3 keV.

• Research Organization: University of California, Lawrence Livermore Laboratory, Livermore, California 94550
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5019204
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 25:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

652023* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Energy Levels & Transitions-- (-1987)
652025 -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ANGULAR MOMENTUM
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BINDING ENERGY
CAPTURE
CURIUM 248
CURIUM 249
CURIUM ISOTOPES
DATA
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FERMIONS
GAMMA SPECTROSCOPY
HADRON REACTIONS
HADRONS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
ISOTOPES
MATHEMATICAL MODELS
NEUTRON REACTIONS
NEUTRONS
NILSSON-MOTTELSON MODEL
NUCLEAR MODELS
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
POTENTIALS
RADIOISOTOPES
SPECTROSCOPY
SPIN
THERMAL NEUTRONS
WOODS-SAXON POTENTIAL
YEARS LIVING RADIOISOTOPES