J. C. Batchelder
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View article: $\mathrm{^{117m}Sn}$ and $\mathrm{^{119m}Te}$ Production via Proton Bombardment on Natural Antimony and Implications for Modeling Charged Particle Reactions
$\mathrm{^{117m}Sn}$ and $\mathrm{^{119m}Te}$ Production via Proton Bombardment on Natural Antimony and Implications for Modeling Charged Particle Reactions Open
$\mathrm{^{117m}Sn}$ and $\mathrm{^{119}Sb}$, the latter of which is produced via a $\mathrm{^{119m}Te}$ generator, are promising radionuclides for the targeted treatment of both osteoarthritis and small mass tumors via Auger therapy. Expe…
View article: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">C</mml:mi><mml:mprescripts/><mml:none/><mml:mn>12</mml:mn></mml:mmultiscripts></mml:math>(<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>n</mml:mi><mml:mo>,</mml:mo><mml:msubsup><mml:mi>n</mml:mi><mml:mn>1</mml:mn><mml:mo>′</mml:mo></mml:msubsup><mml:mi>γ</mml:mi></mml:mrow></mml:math>) partial <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>γ</mml:mi></mml:math>-ray cross section measured using the GENESIS array
() partial -ray cross section measured using the GENESIS array Open
Improved neutron inelastic scattering cross sections have repeatedly been identified as a top priority nuclear data need, important for basic science and a range of applications in nuclear energy, stockpile stewardship, and proliferation d…
View article: Measurement of the energy-differential <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Cl</mml:mi><mml:mprescripts/><mml:none/><mml:mn>35</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>n</mml:mi><mml:mo>,</mml:mo><mml:msub><mml:mi>p</mml:mi><mml:mn>0</mml:mn></mml:msub><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">S</mml:mi><mml:mprescripts/><mml:none/><mml:mn>35</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> cross section via the ratio with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Li</mml:mi><mml:mprescripts/><mml:none/><mml:mn>6</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>n</mml:mi><mml:mo>,</mml:mo><mml:mi>α</mml:mi><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">H</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>
Measurement of the energy-differential cross section via the ratio with Open
Knowledge of the neutron-induced 35Cl (n, x) cross sections is vital to the design and certification of molten chloride fast reactors (MCFRs) since the 35Cl (n, p0) 35S reaction is believed to b…
View article: Proceedings of the Workshop for Applied Nuclear Data Activities WANDA 2022
Proceedings of the Workshop for Applied Nuclear Data Activities WANDA 2022 Open
On February 28 – March 4, 2022, the Nuclear Data Interagency Working Group (NDIAWG) hosted the 5-day virtual Workshop for Applied Nuclear Data (WANDA2022) to facilitate interagency collaboration on nuclear data for applications. This year’…
View article: GENESIS: Gamma Energy Neutron Energy Spectrometer for Inelastic Scattering
GENESIS: Gamma Energy Neutron Energy Spectrometer for Inelastic Scattering Open
Improved neutron inelastic scattering cross section data are needed to inform integral benchmark studies and advance applications in a wide variety of areas including nuclear energy, stockpile stewardship, nonproliferation, and space explo…
View article: Secondary neutron production from thick target deuteron breakup
Secondary neutron production from thick target deuteron breakup Open
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. However, the breakup mechanism remains poorly understood, an…
View article: Complete <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>-decay patterns of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Cs</mml:mi><mml:mprescripts/><mml:none/><mml:mn>142</mml:mn></mml:mmultiscripts><mml:mo>,</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">Ba</mml:mi><mml:mprescripts/><mml:none/><mml:mn>142</mml:mn></mml:mmultiscripts><mml:mo>,</mml:mo></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">La</mml:mi><mml:mprescripts/><mml:none/><mml:mn>142</mml:mn></mml:mmultiscripts></mml:math> determined using total absorption spectroscopy
Complete -decay patterns of and determined using total absorption spectroscopy Open
Background: The β decays of fission products produced in nuclear fuel are important for nuclear energy applications and fundamental science of reactor antineutrinos. In particular, nuclear reactor safety is related to the decay modes of ra…
View article: Secondary Neutron Production from Thick Target Deuteron Breakup
Secondary Neutron Production from Thick Target Deuteron Breakup Open
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. However, the breakup mechanism remains poorly understood, an…
View article: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math> decay of neutron-rich <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Cu</mml:mi><mml:mprescripts/><mml:none/><mml:mn>76</mml:mn></mml:mmultiscripts></mml:math> and the structure of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Zn</mml:mi><mml:mprescripts/><mml:none/><mml:mn>76</mml:mn></mml:mmultiscripts></mml:math>
decay of neutron-rich and the structure of Open
In this work, the β decay of 76Cu to the levels of 76Zn was studied at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Lab (ORNL). A purified 76Cu beam was developed and data were …
View article: Deciphering <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Nb</mml:mi><mml:mprescripts/><mml:none/><mml:mn>98</mml:mn></mml:mmultiscripts></mml:math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math> decay with the Modular Total Absorption Spectrometer at ORNL
Deciphering decay with the Modular Total Absorption Spectrometer at ORNL Open
An assessment done under the auspices of the Organization for Economic Co-operation and Developement Nuclear Energy Agency (OECD-NEA) in 2007 suggested that the β decays of many abundantly produced fission products in nuclear reactors may …
View article: Determination of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>-decay feeding patterns of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Rb</mml:mi><mml:mprescripts/><mml:none/><mml:mn>88</mml:mn></mml:mmultiscripts></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Kr</mml:mi><mml:mprescripts/><mml:none/><mml:mn>88</mml:mn></mml:mmultiscripts></mml:math> using the Modular Total Absorption Spectrometer at ORNL HRIBF
Determination of -decay feeding patterns of and using the Modular Total Absorption Spectrometer at ORNL HRIBF Open
We report precise determination of ground-state feeding in the β decay of fission products is an important but challenging component in modeling reactor antineutrino flux and reactor decay heat. The Modular Total Absorption Spectrometer (M…
View article: Measurement and modeling of proton-induced reactions on arsenic from 35 to 200 MeV
Measurement and modeling of proton-induced reactions on arsenic from 35 to 200 MeV Open
72As is a promising positron emitter for diagnostic imaging that can be employed locally using a 72Se generator. However, current reaction pathways to 72Se have insufficient nuclear data for efficient produ…
View article: Levels in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Cd</mml:mi><mml:mprescripts/><mml:none/><mml:mn>125</mml:mn></mml:mmultiscripts></mml:math> populated by the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math> decay of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ag</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>125</mml:mn><mml:mi>m</mml:mi></mml:mrow></mml:mmultiscripts></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ag</mml:mi><mml:mprescripts/><mml:none/><mml:mn>125</mml:mn></mml:mmultiscripts></mml:math>
Levels in populated by the decay of and Open
The β decay of 125 m, 125 Ag into levels in 125Cd was investigated at the Holifield Radioactive Ion Beam Facility (HRIBF). Uranium-238 targets were bombarded with 50-MeV protons with an intensity of 15 μ A, and the in…
View article: Investigating high-energy proton-induced reactions on spherical nuclei: Implications for the preequilibrium exciton model
Investigating high-energy proton-induced reactions on spherical nuclei: Implications for the preequilibrium exciton model Open
A number of accelerator-based isotope production facilities utilize $100-200$ MeV proton beams due to the high production rates enabled by high-intensity beam capabilities and the greater diversity of isotope production brought on by the l…
View article: Long-lived isomeric states and quasiparticle band structures in neutron-rich <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Gd</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>162</mml:mn><mml:mo>,</mml:mo><mml:mn>164</mml:mn></mml:mrow></mml:mmultiscripts></mml:math> nuclei from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math> decay
Long-lived isomeric states and quasiparticle band structures in neutron-rich nuclei from decay Open
Neutron-rich nuclei 162,164Eu were produced by bombarding a proton beam on a 238U target at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory and mass separating the 162,164Eu pro…
View article: Mapping of fragmented <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>ν</mml:mi><mml:msub><mml:mi>f</mml:mi><mml:mrow><mml:mn>5</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mo>→</mml:mo><mml:mi>π</mml:mi><mml:msub><mml:mi>f</mml:mi><mml:mrow><mml:mn>7</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math> transitions in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Co</mml:mi><mml:mprescripts/><mml:none/><mml:mn>73</mml:mn></mml:mmultiscripts><mml:mspace width="4pt"/><mml:mrow><mml:mo>→</mml:mo><mml:mmultiscripts><mml:mi>Ni</mml:mi><mml:mprescripts/><mml:none/><mml:mn>73</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> decay
Mapping of fragmented transitions in the decay Open
Excited states in 73,75Ni were investigated through the β decay of 73,75Co in an experiment performed at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU). The experimental results extended the lev…
View article: New transitions and levels for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Tb</mml:mi><mml:mprescripts/><mml:none/><mml:mn>163</mml:mn></mml:mmultiscripts></mml:math> obtained from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>-decay studies
New transitions and levels for obtained from -decay studies Open
Transitions in 163Tb following β decay of 163Gd were obtained as part of investigations of γ rays emitted following 163Euβ decay to 163Gd. In this work, detailed analysis of the low-energy struct…
View article: Identification of new transitions and levels in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Gd</mml:mi><mml:mprescripts/><mml:none/><mml:mn>163</mml:mn></mml:mmultiscripts></mml:math> from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>-decay studies
Identification of new transitions and levels in from -decay studies Open
Background: Neutron-rich nuclei in the mass region around A=160 have been and will continue to be of interest for the study of nuclear structure because of the rapid onset of deformation between 88 and 90 neutrons. The observation of detai…
View article: Early Signal of Emerging Nuclear Collectivity in Neutron-Rich <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Sb</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>129</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>
Early Signal of Emerging Nuclear Collectivity in Neutron-Rich Open
Radioactive $^{129}$Sb, which can be treated as a proton plus semi-magic\n$^{128}$Sn core within the particle-core coupling scheme, was studied by\nCoulomb excitation. Reduced electric quadrupole transition probabilities,\n$B(E2)$, for the…
View article: Recommended values for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e43101" altimg="si76.svg"><mml:msup><mml:mrow><mml:mi>β</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math>-delayed proton and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e43111" altimg="si376.svg"><mml:mi>α</mml:mi></mml:math> emission
Recommended values for -delayed proton and emission Open
View article: Boutique neutrons advance <sup>40</sup> Ar/ <sup>39</sup> Ar geochronology
Boutique neutrons advance <sup>40</sup> Ar/ <sup>39</sup> Ar geochronology Open
Use of deuteron-deuteron fusion neutrons may substantially improve applicability and accuracy of the 40 Ar/ 39 Ar technique.
View article: Possible evidence of nonstatistical properties in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Cl</mml:mi><mml:mprescripts/><mml:none/><mml:mn>35</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>n</mml:mi></mml:mrow><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mrow><mml:mi>p</mml:mi><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">S</mml:mi><mml:mprescripts/><mml:none/><mml:mn>35</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> cross section
Possible evidence of nonstatistical properties in the cross section Open
The Cl
View article: First Direct Measurements of Superheavy-Element Mass Numbers
First Direct Measurements of Superheavy-Element Mass Numbers Open
An experiment was performed at Lawrence Berkeley National Laboratory's 88-in. Cyclotron to determine the mass number of a superheavy element. The measurement resulted in the observation of two α-decay chains, produced via the ^{243}Am(^{48…
View article: Updated <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>-decay measurement of neutron-rich <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Cu</mml:mi><mml:mprescripts/><mml:none/><mml:mn>74</mml:mn></mml:mmultiscripts></mml:math>
Updated -decay measurement of neutron-rich Open
Here, the β decay of neutron-rich 74Cu has been studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. By using a high-resolution mass separator a purified 74Cu beam was obtained, thu…
View article: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>-delayed neutron emission from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ga</mml:mi><mml:mprescripts/><mml:none/><mml:mn>85</mml:mn></mml:mmultiscripts></mml:math>
-delayed neutron emission from Open
Here, decay of 85Ga was studied by means of β-neutron-γ spectroscopy. A pure beam of 85Ga was produced at the Holifield Radioactive Ion Beam Facility using a resonance ionization laser ion source and a high-resolution…
View article: Design, construction, and characterization of a compact DD neutron generator designed for 40Ar/39Ar geochronology
Design, construction, and characterization of a compact DD neutron generator designed for 40Ar/39Ar geochronology Open
A next-generation, high-flux DD neutron generator has been designed, commissioned, and characterized, and is now operational in a new facility at the University of California Berkeley. The generator, originally designed for 40Ar…
View article: Measurement of the 64Zn,47Ti(n,p) cross sections using a DD neutron generator for medical isotope studies
Measurement of the 64Zn,47Ti(n,p) cross sections using a DD neutron generator for medical isotope studies Open
View article: Triaxiality near the 110Ru ground state from Coulomb excitation
Triaxiality near the 110Ru ground state from Coulomb excitation Open
View article: $\beta $ Decays of $^{92}$Rb, $^{96\mathrm {gs}}$Y, and $^{142}$Cs Measured with the Modular Total Absorption Spectrometer and the Influence of $\gamma $ Multiplicity on Total Absorption Spectrometry Measurements
$\beta $ Decays of $^{92}$Rb, $^{96\mathrm {gs}}$Y, and $^{142}$Cs Measured with the Modular Total Absorption Spectrometer and the Influence of $\gamma $ Multiplicity on Total Absorption Spectrometry Measurements Open
Total absorption spectroscopy is a technique that helps obtain reliable β-feeding patterns of complex decays important for nuclear structure and astrophysics modeling as well as decay heat analysis in nuclear reactors. The need for improve…
View article: Evidence for Gamow-Teller Decay of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Ni</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>78</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>Core from Beta-Delayed Neutron Emission Studies
Evidence for Gamow-Teller Decay ofCore from Beta-Delayed Neutron Emission Studies Open
The β-delayed neutron emission of ^{83,84}Ga isotopes was studied using the neutron time-of-flight technique. The measured neutron energy spectra showed emission from states at excitation energies high above the neutron separation energy a…