P.W. Lisowski
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View article: Ratio of Gamow-Teller to Fermi strength observed in /sup 13,14/C(p,n) at 492 and 590 MeV
Ratio of Gamow-Teller to Fermi strength observed in /sup 13,14/C(p,n) at 492 and 590 MeV Open
It has been recognized for a number of years that certain spin-isospin components of the nucleon-nucleus effective interaction can be inferred from (p,n) reactions to states of known nuclear structure. For L = 0, S = 0 and L = 0, S = 1 tra…
View article: Fission cross section ratios for sup 233,234,236 U relative to sup 235 U from 0. 5 to 400 MeV
Fission cross section ratios for sup 233,234,236 U relative to sup 235 U from 0. 5 to 400 MeV Open
Neutron-induced fission cross section ratios from 0.5 to 400 MeV for samples of {sup 233, 234, 236}U relative to {sup 235}U have been measured at the WNR neutron Source at Los Alamos. The fission reaction rate was determined using a fast p…
View article: Double differential neutron emission cross sections of /sup 10/B and /sup 11/B at 6, 10 and 14 MeV and of /sup 6/Li, /sup 7/Li and /sup 12/C at 14 MeV
Double differential neutron emission cross sections of /sup 10/B and /sup 11/B at 6, 10 and 14 MeV and of /sup 6/Li, /sup 7/Li and /sup 12/C at 14 MeV Open
Neutron emission spectra of /sup 10/B and /sup 11/B were measured at 6, 10, and 14.1 MeV and those of /sup 6/Li, /sup 7/Li and carbon at 14.1 MeV using time-of-flight technique. Absolute double differential cross sections were obtained by …
View article: A capture-gated neutron calorimeter using plastic scintillators and 3He drift tubes
A capture-gated neutron calorimeter using plastic scintillators and 3He drift tubes Open
A segmented neutron calorimeter using nine 4-inch x 4-inch x 48-inch plastic scintillators and sixteen 2-inch-diameter 48-inch-long 200-mbar-{sup 3}He drift tubes is described. The correlated scintillator and neutron-capture events provide…
View article: Application of Particle Accelerators to Mitigate Energy and Climate Change Problems Facing America
Application of Particle Accelerators to Mitigate Energy and Climate Change Problems Facing America Open
Reliable CO2-free baseload power is needed to address ever-increasing demands for electricity while minimizing adverse climate change. Diversified power supply provided by solar, wind, geothermal, and nuclear reactors can displace the use …
View article: Thermal Neutron-Induced Single-Event Upsets in Microcontrollers Containing Boron-10
Thermal Neutron-Induced Single-Event Upsets in Microcontrollers Containing Boron-10 Open
Single-event upsets (SEUs) were measured in thermal neutron-irradiated microcontrollers with 65-nm node and 130-nm node SRAMs. The suspected upset mechanism is charge deposition from the energetic byproducts of 10B thermal neutron capture.…
View article: Lujan Center Mark-IV Target Neutronics Design Internal Review Report
Lujan Center Mark-IV Target Neutronics Design Internal Review Report Open
The 1L Target Moderator Reflector System (TMRS) at the Lujan Center will need to be replaced before the CY 2020 operating cycle. A Physics Division design team investigated options for improving the overall target performance for nuclear s…