Thermal neutron capture in silicon
- Department of Physics, McMaster University, Hamilton, Ontario, Canada L8S 4K1 (CA)
The prompt gamma-rays from thermal nuteron capture in {sup 28,29,30}Si have been studied and the radiative capture cross sections determined as 207{plus minus}4, 120{plus minus}3 and 107{plus minus}2 mb, respectively. There has been a marked increase in the number of transitions observed in {sup 29}Si and a complete decay scheme for this nucleus is presented. Two primary {ital E}2 transitions in {sup 29}Si have been observed and their partial cross sections are compared with the prediction of the direct capture formalism. The measured neutron separation energies are {ital S}{sub {ital n}}({sup 29}Si)=8473.61{plus minus}0.04 keV, {ital S}{sub {ital n}}({sup 30}Si)=10 609.21{plus minus}0.04 keV, and {ital S}{sub {ital n}}({sup 31}Si)=6587.32{plus minus}0.20 keV.
- OSTI ID:
- 6964799
- Journal Information:
- Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:3; ISSN 0556-2813; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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A=20-38
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BINDING ENERGY
CAPTURE
CROSS SECTIONS
E2-TRANSITIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
GAMMA RADIATION
GAMMA SPECTRA
HADRON REACTIONS
HADRONS
HOURS LIVING RADIOISOTOPES
IONIZING RADIATIONS
ISOTOPES
LIGHT NUCLEI
MULTIPOLE TRANSITIONS
NEUTRON REACTIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
PROMPT GAMMA RADIATION
RADIATIONS
RADIOISOTOPES
SILICON 28 TARGET
SILICON 29
SILICON 29 TARGET
SILICON 30
SILICON 30 TARGET
SILICON 31
SILICON ISOTOPES
SPECTRA
STABLE ISOTOPES
TARGETS
THERMAL NEUTRONS