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Research and Creative Activities Poster Day

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Full-Text Articles in Physics

The Quantum Dancing Of Hot Atomic Nuclei: A New Theoretical Approach, Herlik Wibowo Apr 2017

The Quantum Dancing Of Hot Atomic Nuclei: A New Theoretical Approach, Herlik Wibowo

Research and Creative Activities Poster Day

We study the nuclear excitation spectra in the two energy domains: the low energy region (below 10 MeV) and giant resonance (GR) region (10-30 MeV). In the low energy region, the experimentally discovered upbend of the radiative dipole strength function is very important as it has an impact on the rapid neutron capture cross sections, which are used, in particular, for the r-process nucleosynthesis studies.

Thermal continuum quasiparticle random-phase approximation (TCQRPA) is one of the models which attempts to explain this phenomenon. The deficiency of TCQRPA is the absence of quasiparticle vibration coupling (QVC) mechanism, which is already included in …


Microbeam Production Using Straight And Tapered Glass Capillaries, Asma M. Ayyad Apr 2013

Microbeam Production Using Straight And Tapered Glass Capillaries, Asma M. Ayyad

Research and Creative Activities Poster Day

No abstract provided.


Study Of 14b Using (D,P) Reaction In Inverse Kinematics, Shadi Bedoor, Jonathan C. Lighthall, Scott T. Marley Apr 2013

Study Of 14b Using (D,P) Reaction In Inverse Kinematics, Shadi Bedoor, Jonathan C. Lighthall, Scott T. Marley

Research and Creative Activities Poster Day

No abstract provided.


Time Dependent Photoionization Of Gas Outflows In Agn, Ehab Elhoussieny Apr 2012

Time Dependent Photoionization Of Gas Outflows In Agn, Ehab Elhoussieny

Research and Creative Activities Poster Day

We study the dynamic effects of time varying UV ionizing continuum on radiation bounded photoionized outflows in AGN. We use a 1D hydrodynamics numerical code to verify the predictions of Bautista & Dunn (2010). It is seen that variations in the UV ionizing continuum yield nonequilibrium conditions in the plasma and create supersonic cooling and heating fronts that give the outflows. Thus, large pressure imbalances arise in the cloud, which are compensated by flow motions leading to fragmentation of the wind and dense shells at the leading ends of the outflowing clouds.


K-X-Ray Emission In Fast O5+ On Ar Collisions, Tamer Elkafrawy Apr 2011

K-X-Ray Emission In Fast O5+ On Ar Collisions, Tamer Elkafrawy

Research and Creative Activities Poster Day

The goal of the present work is to observe x-rays from oxygen for the purpose of investigating resonant-transfer and excitation (RTE) [1], and projectile and target x-ray emission resulting from inner-shell capture. Projectile energies in the range 5-25 MeV will be examined to investigate RTE for heavy targets [2,3].