Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Low-energy neutron resonances in /sup 206/Pb

Journal Article · · Phys. Rev., C; (United States)

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

Similar Records

/sup 206/Pb + n resonances for E = 25--600 keV: s-, p-, and d-wave doorway states and M1 ground-state radiative strength in /sup 207/Pb
Journal Article · Wed Aug 01 00:00:00 EDT 1979 · Phys. Rev., C; (United States) · OSTI ID:6245448

Measurements of the neutron transmission and capture cross sections in /sup 204/Pb
Journal Article · Fri Jun 01 00:00:00 EDT 1984 · Phys. Rev. C; (United States) · OSTI ID:6528446

Doorway states in s-, p-, and d-wave entrance channels in /sup 207/Pb + n reaction
Journal Article · Tue Aug 01 00:00:00 EDT 1978 · Phys. Rev., C; (United States) · OSTI ID:6668854