Low-energy neutron resonances in /sup 206/Pb
Neutron resonance reactions on an enriched /sup 206/Pb target have been studied below 50 KeV using neutron time-of-flight techniques. The neutron and radiation widths of seventeen resonances were obtained from transmission and capture cross section measurements. Spin and parity assignments for eight resonances were made on the basis of the transmission measurements and the decay patterns of ..gamma.. rays measured with a Ge(Li)detector. The ..gamma..-ray spectra are strikingly simple, being composed of less than five primary ..gamma.. rays. The neutron separation energy for /sup 207/Pb was determined to be 6738.2 +- 0.7 KeV. The magnetic dipole transitions from several p-wave resonances to the first three excited states in /sup 207/Pb show some enhancement. A possible doorway state in the p/sub 1/2/ neutron channel has been observed in the /sup 206/Pb + n reaction at E/sub n/ approx. = 36 keV.
- Research Organization:
- Physics Department, Vanderbilt University, Nashville, Tennessee 37235
- OSTI ID:
- 6463365
- Journal Information:
- Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 19:2; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
A=190-219
Experimental-- Energy Levels & Transitions-- (-1987)
651925 -- Nuclear Properties & Reactions
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BARYON REACTIONS
BINDING ENERGY
CAPTURE
CROSS SECTIONS
DATA
DATA FORMS
ENERGY
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GAMMA SPECTRA
HADRON REACTIONS
HEAVY NUCLEI
INFORMATION
ISOLATED VALUES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KEV RANGE
KEV RANGE 10-100
LEAD 206 TARGET
LEAD 207
LEAD ISOTOPES
M1-TRANSITIONS
MULTIPOLE TRANSITIONS
NEUTRON REACTIONS
NEUTRON SEPARATION ENERGY
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
P WAVES
PARITY
PARTIAL WAVES
PARTICLE PROPERTIES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTRA
SPIN
STABLE ISOTOPES
TARGETS
TIME-OF-FLIGHT METHOD