Publications

Feb, 2026

Journal

Systematic Bayesian evaluation of resonance parameters in 19Ne for the 15O⁡(𝛼,𝛾)⁢ 19Ne and 18F ⁡(𝑝,𝛼)⁢ 15O reactions

We present a comprehensive evaluation of the nuclear structure properties of 19Ne using a novel and rigorous Bayesian statistical framework. Precise characterization of 19Ne resonance parameters is critical for accurately determining reaction rates of the astrophysically significant 15O⁡(𝛼,𝛾)⁢ 19Ne and 18F ⁡(𝑝,𝛼)⁢ 15O reactions, which govern breakout from the hot CNO cycle…

Feb, 2026

Journal

Nuclear Data Sheets for A=69

Experimental data on ground- and excited-state properties for all known nuclei with mass number A=69 have been compiled and evaluated. States populated in radioactive decay, as well as in nuclear reactions, have been considered. For these nuclei, level and decay schemes, as well as tables of nuclear properties, are given in detail. This work supersedes the 2013 evaluation…

Aug, 2025

Journal

Nuclear Data Sheets for A=248

Available information pertaining to the nuclear structure of ground and excited states for all known nuclei with mass numbers A=248 has been compiled and evaluated. The adopted level and decay schemes, as well as the detailed nuclear properties and configuration assignments based on experimental data, are presented for these nuclides. When there are insufficient data, expe…

May, 2025

Journal

Nuclear Data Sheets for A=246

Available information pertaining to the nuclear structure of ground and excited states for all known nuclei with mass number A = 246 have been compiled and evaluated. The adopted level and decay schemes, as well as the detailed nuclear properties and configuration assignments based on experimental data, are presented for these nuclides. When there are insufficient data, ex…

Apr, 2025

Journal

Decay studies of the 𝛽-delayed neutron emitters 87Br and 88Br measured by means of the Modular Total Absorption Spectrometer at ORNL HRIBF

The β decays of 87Br, 88Br, and 87Kr were measured with the Modular Total Absorption Spectrometer (MTAS) at Oak Ridge National Laboratory’s Holifield Radioactive Ion Beam Facility (HRIBF). Both bromine isotopes are β-delayed neutron emitters that have large cumulative fission yields and were identified as top-priority cases for total absorption study by the Nuclear Energy…

Aug, 2024

Journal

Nuclear Data Sheets for A=249

The evaluated spectroscopic data are presented for these nuclides: 249U, 249Np, 249Pu, 249Am, 249Cm, 249Bk, 249Cf, 249Es 249Fm, 249Md and 249No. This work supersedes the earlier full evaluation of A=249 published by 2011Ab07.

Dec, 2023

Journal

Complete β-decay patterns of 142Cs,142Ba, and 142La determined using total absorption spectroscopy

Nov, 2023

Conference Paper

Bottlenecks and Waiting Points in Nucleosynthesis in X‐ray bursts and Novae

To better understand the energy generation and element synthesis occurring in novae and X‐ray bursts, we give quantitative definitions to the concepts of “bottlenecks” and “waiting points” in the thermonuclear reaction flow. We use these criteria to search for bottlenecks and waiting points in post‐processing element synthesis explosion simulations. We have incorporated th…

Nov, 2023

Journal

Nuclear Data Sheets for A=244

Available information pertaining to the nuclear structure of ground and excited states for all known nuclei with mass numbers A=244 have been compiled and evaluated. The adopted level and decay schemes, as well as the detailed nuclear properties and configuration assignments based on experimental data are presented for these nuclides. When there are insufficient data, expe…

Nov, 2023

Journal

Nuclear Data Sheets for A=245

Available information pertaining to the nuclear structure of ground and excited states for all known nuclei with mass numbers A=245 have been compiled and evaluated. The adopted level and decay schemes, as well as the detailed nuclear properties and configuration assignments based on experimental data, are presented for these nuclides. When there are insufficient data, exp…

Nov, 2023

Journal

Neutron transfer reactions on the ground state and isomeric state of a Sn130 beam

The structure of nuclei around the neutron-rich nucleus 132Sn is of particular interest due to the vicinity of the Z=50 and N=82 shell closures and the r-process nucleosynthetic path. Four states in 131Sn with a strong single-particle-like component have previously been studied via the (d,p) reaction, with limited excitation energy resolution. The 130Sn(9Be,8Be)131Sn and 1…

Nov, 2023

Journal

Resolution of a discrepancy in the γ-ray emission probability from the β decay of 137Ceg

We have deduced the emission probability of the 447-keV γ ray from the ɛ+β+ decay of 137Ceg (9.0 h) relative to that of the 254-keV γ ray from the 137Cem (34.4 h) decay in transient equilibrium. The time-dependent factor in transient equilibrium was applied following the Bateman equation for a radioactive decay chain. The isotope was produced via the 139La(p,3n)137Cem,g re…