33 citations · 217 across the 21 of their papers we have counts for
21 papers
Obtaining high resolution excitation functions with an active thick-target approach and validating them with mirror nuclei
S. Hudan, J. E. Johnstone, Rohit Kumar +11
Measurement of fusion excitation functions for stable nuclei has largely been restricted to nuclei with significant natural abundance. Typically, to investigate neighboring nuclei…
Proton and neutron exchange as a prelude to fusion at near-barrier energies
J. E. Johnstone, Varinderjit Singh, R. Giri +20
Systematic examination of fusion for K + Si and Ar + Si provides insight into the impact of neutron and proton exchange on fusion for nuclei…
MuSIC@Indiana: an effective tool for accurate measurement of fusion with low-intensity radioactive beams
J. E. Johnstone, Rohit Kumar, S. Hudan +11
The design, construction, and characterization of the Multi-Sampling Ionization Chamber, MuSIC@Indiana, are described. This detector provides efficient and accurate measurement of…
Assessing the impact of valence sd neutrons and protons on fusion
Varinderjit Singh, J. Vadas, T. K. Steinbach +3
Experimental above-barrier fusion cross-sections for F + C are compared to the fusion excitation functions for O, F, and Ne ions on a carbon t…
Extracting dynamics in the fusion of neutron-rich light nuclei
R. T. deSouza, Varinderjit Singh, S. Hudan +2
The dependence of fusion dynamics on neutron excess for light nuclei is extracted. This is accomplished by comparing the average fusion cross-section at energies just above the fus…
Investigating the dependence of collective dynamics on n/p asymmetry for light nuclei
R. T. deSouza, Varinderjit Singh, S. Hudan +2
The dynamics present in the fusion of neutron-rich nuclei is explored through the comparison of experimental cross-sections at above-barrier energies with measurements of the inter…
Enhanced dynamics in fusion of neutron-rich oxygen nuclei at above-barrier energies
S. Hudan, R. T. deSouza, A. S. Umar +2
Above-barrier fusion cross-sections for an isotopic chain of oxygen isotopes with A=16-19 incident on a C target are presented. Experimental data are compared with both stat…
Searching for states analogous to the 12C Hoyle state in heavier nuclei using the thick target inverse kinematics technique
M. Barbui, K. Hagel, J. Gauthier +8
Identification of alpha cluster states analogous to the 12C Hoyle state in heavier alpha- conjugate nuclei can provide tests of the existence of alpha condensates in nuclei. Such s…
Development of a compact ExB microchannel plate detector for beam imaging
B. B. Wiggins, Varinderjit Singh, J. Vadas +4
A beam imaging detector was developed by coupling a multi-strip anode with delay line readout to an EB microchannel plate (MCP) detector. This detector is capable of measur…
Disentangling the role of vibration, rotation, and neutron transfer in the fusion of neutron-rich mid-mass nuclei
J. Vadas, Varinderjit Singh, B. B. Wiggins +9
We report the first measurement of the fusion excitation functions for K + Si at near-barrier energies. Evaporation residues resulting from the fusion process were…
High-rate axial-field ionization chamber for particle identification of radioactive beams
J. Vadas, Varinderjit Singh, G. Visser +8
The design, construction and performance characteristics of a simple axial-field ionization chamber suitable for identifying ions in a radioactive beam are presented. Optimized for…
Fusion Enhancement for Neutron-Rich Light Nuclei
Varinderjit Singh, J. Vadas, T. K. Steinbach +6
Measurement of the fusion cross-section for neutron-rich light nuclei is crucial in ascertaining if fusion of these nuclei occurs in the outer crust of a neutron star. The fusion e…
Using pulse shape analysis to improve the position resolution of a resistive anode microchannel plate detector
Davinder Siwal, B. B. Wiggins, R. T. deSouza
Digital signal processing techniques were employed to investigate the joint use of charge division and risetime analyses for the resistive anode (RA) coupled to a microchannel plat…
Does the alpha cluster structure in light nuclei persist through the fusion process?
J. Vadas, T. K. Steinbach, J. Schmidt +7
[Background] Despite the importance of light-ion fusion in nucleosynthesis, a limited amount of data exists regarding the de-excitation following fusion for such systems. [Purpose]…
Symmetry energy dependence of long timescale isospin transport
K. Stiefel, Z. Kohley, R. T. deSouza +2
Isospin transport occurring within dinuclear projectile-like fragments (PLFs) produced in heavy- ion collisions is explored as a probe of the nuclear symmetry energy. Within the fr…
Sub-barrier enhancement of fusion as compared to a microscopic method in 18O+12C
T. K. Steinbach, J. Vadas, J. Schmidt +8
Measurement of the energy dependence of the fusion cross-sec on at sub-barrier energies provides an important test for theoretical models of fusion. To extend the measurement of fu…
Scaling properties of light-cluster production
Z. Chajecki, M. Youngs, D. D. S. Coupland +27
We show that ratios of light-particle energy spectra display scaling properties that can be accu- rately described by effective local chemical potentials. This demonstrates the equ…
Timescale for equilibration of N/Z gradients in dinuclear systems
K. Brown, S. Hudan, R. T. de Souza +5
Equilibration of N/Z in binary breakup of an excited and transiently deformed projectile-like fragment (PLF*), produced in peripheral collisions of 64Zn + 27Al, 64Zn, 209Bi at E/A…
Confronting measured near and sub-barrier fusion cross-sections for 20O+12C with a microscopic method
R. T. deSouza, S. Hudan, V. E. Oberacker +1
Recently measured fusion cross-sections for the neutron-rich system 20O+12C are compared to dynamic, microscopic calculations using time-dependent density functional theory. The ca…
Angular Dependence in Proton-Proton Correlation Functions in Central and Reactions
V. Henzl, M. A. Kilburn, Z. Chajecki +21
The angular dependence of proton-proton correlation functions is studied in central and nuclear reactions at E=80 MeV/A. Measurements were perfo…
Short timescale behavior of colliding heavy nuclei at intermediate energies
S. Hudan, R. T. deSouza, A. Ono
An Antisymmetrized Molecular Dynamics model is used to explore the collision of Cd projectiles with Mo target nuclei at E/A=50 MeV over a broad range in impact param…