Photoneutron spectrum of lead following excitation by 8999, 8533, and 8120 keV photons
Journal Article
·
· Phys. Rev., C; (United States)
The photoneutron spectrum of natural lead has been observed for photoexcitation energies of 8999, 8533, and 8120 keV using a high-resolution /sup 3/He ionization chamber. The photons were obtained from the (n, ..gamma..) reaction on a nickel target positioned in a nuclear reactor. The Q values for the three reactions /sup 208/Pb(..gamma.., n)/sup 207/Pb, /sup 207/Pb (..gamma.., n)/sup 206/Pb, and /sup 206/Pb(..gamma.., n)/sup 205/Pb have been determined and are, respectively, 7369 +- 5, 6743 +- 3, and 8087 +- 3 keV. Neutron groups corresponding to different final states following excitation by one of the three photon components have been observed and their partial cross sections are reported. The distribution and some systematics of the neutron reduced widths have been studied. The absolute cross sections of the reaction/sup 208/Pb(..gamma.., n)/sup 207/Pb at 8999 and 8533 keV photon energies have been found to be 6.8 +- 2.9 and 5.0 +- 2.1 mb, respectively. (AIP)
- Research Organization:
- Department of Physics, McMaster University, Hamilton, Ontario, Canada L8S 4K1
- OSTI ID:
- 7354478
- Journal Information:
- Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 13:5; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651925* -- Nuclear Properties & Reactions
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BASIC INTERACTIONS
BETA DECAY RADIOISOTOPES
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HEAVY NUCLEI
INTERACTIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD 205
LEAD 206
LEAD 206 TARGET
LEAD 207
LEAD 207 TARGET
LEAD 208 TARGET
LEAD ISOTOPES
MEV RANGE
MEV RANGE 01-10
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTONEUTRONS
PHOTONUCLEAR REACTIONS
PHOTONUCLEONS
PHOTOPRODUCTION
Q-VALUE
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
TARGETS
YEARS LIVING RADIOISOTOPES
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BASIC INTERACTIONS
BETA DECAY RADIOISOTOPES
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HEAVY NUCLEI
INTERACTIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD 205
LEAD 206
LEAD 206 TARGET
LEAD 207
LEAD 207 TARGET
LEAD 208 TARGET
LEAD ISOTOPES
MEV RANGE
MEV RANGE 01-10
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTONEUTRONS
PHOTONUCLEAR REACTIONS
PHOTONUCLEONS
PHOTOPRODUCTION
Q-VALUE
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
TARGETS
YEARS LIVING RADIOISOTOPES