A. B. McIntosh
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View article: Cross sections of $$^{147-149}$$Sm($$^{6}$$Li,x) reactions for the production of $$^{149}$$Tb for targeted alpha therapy
Cross sections of $$^{147-149}$$Sm($$^{6}$$Li,x) reactions for the production of $$^{149}$$Tb for targeted alpha therapy Open
Terbium-149g ( $$t_{1/2}$$ = 4.12 h) is of particular interest for targeted alpha therapy cancer treatment due to its ability to decay via both alpha and positron emission, making it a potential theranostic nuclide. Due to many challenges …
View article: Directed and elliptic flow observations in Sn+Sn collisions with radioactive beams at 270 MeV/u
Directed and elliptic flow observations in Sn+Sn collisions with radioactive beams at 270 MeV/u Open
Radioactive tin beams were used to explore the flow observables under varying isospin asymmetries while maintaining a constant total charge. The rapidity dependence of directed flow (v1) and elliptic flow (v2) was studied for protons, deut…
View article: Investigation of post-breakup Coulomb acceleration using a trajectory model
Investigation of post-breakup Coulomb acceleration using a trajectory model Open
Intermediate mass fragments ejected during the deexcitation of excited projectilelike fragments may promptly decay following ejection; the daughter particles that are subsequently produced are subject to interactions with the residual nucl…
View article: Impact of composition and symmetry energy on the temperature of quasiprojectiles simulated with antisymmetrized molecular dynamics
Impact of composition and symmetry energy on the temperature of quasiprojectiles simulated with antisymmetrized molecular dynamics Open
The equation of state describes the emergent physical properties of matter. Experimental data is needed to help constrain the equation of state for nuclear matter. These constraints can help distinguish between an “asy-stiff” and an “asy-s…
View article: Search for toroids in excited nuclear material
Search for toroids in excited nuclear material Open
Ground state nuclei usually have compact geometries. However, there have been theoretical predictions that excited nuclei can take on more extended shapes such as toroids or bubbles. There have been many attempts to identify signatures of …
View article: Constraining nucleon effective masses with flow and stopping observables from the S$π$RIT experiment
Constraining nucleon effective masses with flow and stopping observables from the S$π$RIT experiment Open
Properties of the nuclear equation of state (EoS) can be probed by measuring the dynamical properties of nucleus-nucleus collisions. In this study, we present the directed flow ($v_1$), elliptic flow ($v_2$) and stopping (VarXZ) measured i…
View article: Apparent temperatures of neutron-poor and neutron-rich compound nuclei
Apparent temperatures of neutron-poor and neutron-rich compound nuclei Open
The possibility of the dependence of the nuclear caloric curve on neutron excess sets a limit on the accuracy of our knowledge of the nuclear equation of state, and thus impacts predictive capabilities of nuclear reaction and nuclear astro…
View article: Investigating the time dependence of neutron-proton equilibration using molecular dynamics simulations
Investigating the time dependence of neutron-proton equilibration using molecular dynamics simulations Open
Neutron-proton equilibration has previously been studied experimentally in dynamically deformed nuclei in heavy ion collisions [Phys. Rev. Lett. 118, 062501 (2017); Phys. Rev. C 95, 044604 (2017)] using the NIMROD detector array at the Cyc…
View article: Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
Dense Nuclear Matter Equation of State from Heavy-Ion Collisions Open
The nuclear equation of state (EOS) is at the center of numerous theoretical and experimental efforts in nuclear physics. With advances in microscopic theories for nuclear interactions, the availability of experiments probing nuclear matte…
View article: Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
Dense Nuclear Matter Equation of State from Heavy-Ion Collisions Open
The nuclear equation of state (EOS) is at the center of numerous theoretical and experimental efforts in nuclear physics, motivated by its crucial role in our understanding of the properties of nuclear matter found on Earth, in neutron sta…
View article: Proton and neutron exchange as a prelude to fusion at near-barrier energies
Proton and neutron exchange as a prelude to fusion at near-barrier energies Open
Systematic examination of fusion for 39,41,45,47K + 28Si and 36,44Ar + 28Si provides insight into the impact of neutron and proton exchange on fusion for nuclei at and near the N = 20 and N = 28 shells. Comparison of the reduced excitation…
View article: Impact of shell structure on the fusion of neutron-rich mid-mass nuclei
Impact of shell structure on the fusion of neutron-rich mid-mass nuclei Open
The influence of shell effects on fusion of mid-mass nuclei is explored using isotopic chains of K and Ar ions on an oxygen target. Comparison of the reduced excitation functions reveals that the fusion cross section for the open neutron-s…
View article: Rapidity distributions of Z = 1 isotopes and the nuclear symmetry energy from Sn+Sn collisions with radioactive beams at 270 MeV/nucleon
Rapidity distributions of Z = 1 isotopes and the nuclear symmetry energy from Sn+Sn collisions with radioactive beams at 270 MeV/nucleon Open
The rapidity distributions of hydrogen isotopes emitted from central collisions of neutron-rich Sn-132+Sn-124 and neutron-deficient Sn- 108+Sn-112 systems at 270 MeV/nucleon were investigated at RIKEN- RIBF. The data are compared with anti…
View article: The S<i>π</i>RIT time projection chamber
The S<i>π</i>RIT time projection chamber Open
The Superconducting Analyzer for MUlti-particles from RAdioIsotope (SAMURAI) Pion-Reconstruction and Ion-Tracker Time Projection Chamber (SπRIT TPC) was designed to enable measurements of heavy ion collisions with the SAMURAI spectrometer …
View article: Probing the Symmetry Energy with the Spectral Pion Ratio
Probing the Symmetry Energy with the Spectral Pion Ratio Open
Many neutron star properties, such as the proton fraction, reflect the symmetry energy contributions to the equation of state that dominate when neutron and proton densities differ strongly. To constrain these contributions at suprasaturat…
View article: Advances in <sup>211</sup>At production at Texas A&M University
Advances in <sup>211</sup>At production at Texas A&M University Open
Alpha emitting radionuclides with medically relevant half-lives are interesting for treatment of tumors and other diseases because they deposit large amounts of energy close to the location of the radioisotope. Researchers at the Cyclotron…
View article: Correlation between time and angular alignment in molecular dynamics simulations of heavy ion collisions
Correlation between time and angular alignment in molecular dynamics simulations of heavy ion collisions Open
Neutron-proton equilibration is a process which has been used to study the density dependence of the symmetry energy term in the nuclear equation-of-state. Here, this study utilizes constrained molecular dynamics (CoMD) simulations of 70Zn…
View article: Isoscaling and nuclear reaction dynamics
Isoscaling and nuclear reaction dynamics Open
Isoscaling parameters α and β have been explored as a function of breakup angle in binary excited projectile-like fragment decays produced in collisions of 70Zn+ 70Zn and 64Zn+ 64Zn at 35 MeV per nucleon. In this analysis, focus was placed…
View article: Dynamical ternary decays of excited projectile-like fragments
Dynamical ternary decays of excited projectile-like fragments Open
We study neutron-proton equilibration in dynamically deformed nuclear systems by investigating the correlations between the three largest fragments produced in collisions of 70Zn + 70Zn at 35 MeV per nucleon. In this work, the rotation ang…