74 citations · 872 across the 36 of their papers we have counts for
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Secondary Neutron Production from Thick Target Deuteron Breakup
Jonathan T. Morrell, Andrew S. Voyles, Jon C. Batchelder +2
Thick target deuteron breakup is a variable-energy accelerator-based source of high-energy neutrons, with applications in fundamental and applied nuclear science and engineering. H…
Measurement and Modeling of Proton-Induced Reactions on Arsenic from 35 to 200 MeV
Morgan B. Fox, Andrew S. Voyles, Jonathan T. Morrell +10
As is a promising positron emitter for diagnostic imaging that can be employed locally using a Se generator. However, current reaction pathways to Se have insu…
Investigating High-Energy Proton-Induced Reactions on Spherical Nuclei: Implications for the Pre-Equilibrium Exciton Model
Morgan B. Fox, Andrew S. Voyles, Jonathan T. Morrell +10
A number of accelerator-based isotope production facilities utilize 100- to 200-MeV proton beams due to the high production rates enabled by high-intensity beam capabilities and th…
An Integral Experiment on Polyethylene Using Radiative Capture in Indium Foils in a High Flux D-D Neutron Generator
Nnaemeka Nnamani, Karl van Bibber, Lee A Bernstein +2
The Department of Nuclear Engineering, University of California Berkeley built a D-D neutron generator called the High Flux Neutron Generator (HFNG). It operates in the range of 10…
Proton-induced reactions on Fe, Cu, & Ti from threshold to 55 MeV
Andrew S. Voyles, Amanda M. Lewis, Jonathan T. Morrell +5
Theoretical models often differ significantly from measured data in their predictions of the magnitude of nuclear reactions that produce radionuclides for medical, research, and na…
Measurement of La(p,x) Cross Sections from 35-60 MeV by Stacked-Target Activation
Jonathan T. Morrell, Andrew S. Voyles, M. S. Basunia +3
A stacked-target of natural lanthanum foils (99.9119% La) was irradiated using a 60 MeV proton beam at the LBNL 88-Inch Cyclotron. La(p,x) cross sections are report…
Restricted spin-range correction in the Oslo Method: The example of nuclear level density and -ray strength function from
F. Zeiser, G. M. Tveten, G. Potel +19
The Oslo Method has been applied to particle- coincidences following the (d,p) reaction to obtain the nuclear level density (NLD) and -ray strength functio…
Impact of restricted spin-ranges in the Oslo Method: The example of (d,p)
F. Zeiser, G. Potel, G. M. Tveten +18
In this paper we present the first systematic analysis of the impact of the populated vs. intrinsic spin distribution on the nuclear level density and -ray strength function ret…
Radiative-capture cross sections for the La() reactionusing thermal neutrons and structural properties of La
A. M. Hurst, A. Sweet, B. L. Goldblum +11
A set of prompt partial -ray production cross sections from thermal neutron-capture were measured for the La() reaction using a guided beam of subthermal (thermal a…
Excitation functions for (p,x) reactions of niobium in the energy range of E = 40-90 MeV
Andrew S. Voyles, Lee A. Bernstein, Eva R. Birnbaum +5
A stack of thin Nb foils was irradiated with the 100 MeV proton beam at Los Alamos National Laboratory's Isotope Production Facility, to investigate the Nb(p,4n)Mo nu…
Understanding the Low-Energy Enhancement of the -ray Strength Function of Fe
M. D. Jones, A. O. Macchiavelli, M. Wiedeking +27
A model-independent technique was used to determine the -ray Strength Function (SF) of Fe down to -ray energies less than 1 MeV for the first time with GRETINA usin…
Energy dependence of the prompt -ray emission from the -induced fission of and
S. J. Rose, F. Zeiser, J. N. Wilson +22
Prompt fission -rays are responsible for approximately 5\% of the total energy released in fission, and therefore important to understand when modelling nuclear reactors. In thi…
Measurement of the Zn,Ti(n,p) Cross Sections using a DD Neutron Generator for Medical Isotope Studies
Andrew Voyles, M. S. Basunia, Jon Batchelder +8
Cross sections for the Ti(n,p)Sc and Zn(n,p)Cu reactions have been measured for quasi-monoenergetic DD neutrons produced by the UC Berkeley High Flux Ne…
La(, ) cross sections constrained with statistical decay properties of La nuclei
Bonginkosi Vincent Kheswa, Mathis Wiedeking, Josh Brown +22
The nuclear level densities and -ray strength functions of La were measured using the La(He, ), La(He, He) and $^{1…
Nature of low-lying electric dipole resonance excitations in 74Ge
D. Negi, M. Wiedeking, E. G. Lanza +32
Isospin properties of dipole excitations in 74 Ge are investigated using the (α,α'γ) reaction and compared to (γ,γ) data. The results indicate that the dipole excitations in the en…
Completing the nuclear reaction puzzle of the nucleosynthesis of 92Mo
G. M. Tveten, A. Spyrou, R. Schwengner +20
One of the greatest questions for modern physics to address is how elements heavier than iron are created in extreme, astrophysical environments. A particularly challenging part of…
Statistical properties of Pu, and Pu(n,) cross section calculation
T. A. Laplace, F. Zeiser, M. Guttormsen +24
The level density and gamma-ray strength function (gammaSF) of 243Pu have been measured in the quasi-continuum using the Oslo method. Excited states in 243Pu were populated using t…
Nuclear Data Needs and Capabilities for Applications
Lee Bernstein, David Brown, Aaron Hurst +6
The Workshop on Nuclear Data Needs and Capabilities for Applications (NDNCA) was held at Lawrence Berkeley National Laboratory (LBNL) on 27-29 May 2015. The goals of NDNCA were com…
Low-energy enhancement in the γ-ray strength functions of Ge
T. Renstrøm, H. -T. Nyhus, H. Utsumoniya +22
The -ray strength functions and level densities of Ge have been extracted up to the neutron separation energy S from particle- coincidence data using the Oslo m…
Experimental level densities of atomic nuclei
M. Guttormsen, M. Aiche, F. L. Bello Garrote +24
It is almost 80 years since Hans Bethe described the level density as a non-interacting gas of protons and neutrons. In all these years, experimental data were interpreted within t…
Level densities and thermodynamical properties of Pt and Au isotopes
F. Giacoppo, F. L. Bello Garrote, L. A. Bernstein +15
The nuclear level densities of Pt and Au below the neutron separation energy have been measured using transfer and scattering reactions. All the level densi…
Scissors resonance in the quasi-continuum of Th, Pa and U isotopes
M. Guttormsen, L. A. Bernstein, A. Görgen +16
The gamma-ray strength function in the quasi-continuum has been measured for 231-233Th, 232,233Pa and 237-239U using the Oslo method. All eight nuclei show a pronounced increase in…
Observation of large scissors resonance strength in actinides
M. Guttormsen, L. A. Bernstein, A. Bürger +8
The orbital M1-scissors resonance (SR) has been measured for the first time in the quasi-continuum of actinides. Particle-gamma coincidences are recorded with deuteron and 3He indu…
Primary versus secondary gamma intensities in 171Yb(n_th,gamma)
A. Schiller, A. Voinov, E. Algin +6
The two published literature values [Greenwood et al., Nucl. Phys. A252, 260 (1975) and Gelletly et al., J. Phys. G 11, 1055 (1985)] for absolute primary gamma intensities followin…