Fission fragment isomers populated via {sup 6}Li+{sup 232}Th

Journal Article · Fri Jan 15 00:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.014301· OSTI ID:21386533

Ressler, J J; Caggiano, J A; Peplowski, P N; Jordan, D V; Warren, G A ^[1]; Francy, C J; Swearingen, P G ^[1]; Allmond, J M; Beausang, C W ^[2]; Bernstein, L A; Bleuel, D L; Burke, J T; Lesher, S R; Scielzo, N D; Wiedeking, M ^[3]; Fallon, P; McMahan, M A; Phair, L ^[4]; Hecht, A A ^[5]; Palmer, T S ^[6]

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1. Pacific Northwest National Laboratory, Richland, Washington 99352 (United States)
2. Department of Physics, University of Richmond, Richmond, Virginia 23173 (United States)
3. Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
4. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
5. Department of Nuclear Engineering, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
6. Department of Nuclear Engineering, Oregon State University, Corvallis, Oregon 97331 (United States)

Short-lived isomers in fission fragments following bombardment of 45-MeV {sup 6}Li on {sup 232}Th were examined. Isomers in the A{approx}95, 122, and 132 mass regions were observed. New isomeric decays were observed in {sup 121}In[T{sub 1/2}=17(2) mus], {sup 123}In (T{sub 1/2}> or approx.100 mus), and {sup 125}Sb[T{sub 1/2}=25(4) mus]. These isomers are suggested to arise from nu(h{sub 11/2} x d{sub 3/2})7{sup -} and nu(h{sub 11/2} x s{sub 1/2})5{sup -} neutron core excitations coupling with the valence proton.

• OSTI ID: 21386533
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 1; Other Information: DOI: 10.1103/PhysRevC.81.014301; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIMONY 125
COUPLING
DECAY
EXCITATION
FISSION FRAGMENTS
INDIUM 121
INDIUM 123
ISOMERS
LITHIUM 6
MASS
MEV RANGE 10-100
NEUTRONS
PROTONS
THORIUM 232 TARGET
ANTIMONY ISOTOPES
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
FERMIONS
HADRONS
INDIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
LITHIUM ISOTOPES
MEV RANGE
MINUTES LIVING RADIOISOTOPES
NUCLEAR FRAGMENTS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
TARGETS
YEARS LIVING RADIOISOTOPES