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Nuclear Modification Factor (Ra̲̳A̳̲) In Center Of Mass Energy 200 Gev For Cu + Cu Collisions At Forward Rapidity, Dwayne John
Nuclear Modification Factor (Ra̲̳A̳̲) In Center Of Mass Energy 200 Gev For Cu + Cu Collisions At Forward Rapidity, Dwayne John
Masters Theses
Relativistic heavy-ion collisions are an integral component in studying the small-scale structure of the universe and a probe for nuclear processes. Measurements are an important part of confirming any theory that plans to accurately describe the fundamental processes of the universe. One such measurement of these interactions is the Nuclear Modification Factor (R[subscript AA]). This thesis presents the measurement of R[subscript AA] as a function of transverse momentum for hadrons in Cu + Cu collisions at forward angles. The experiment was performed with the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) from data recorded in 2005 by …
Patient-Specific Quality Assurance For Imrt, Michelle Lynn Neeley
Patient-Specific Quality Assurance For Imrt, Michelle Lynn Neeley
Masters Theses
In radiation therapy, QA is an integral part of the IMRT treatment process. This study evaluated two different QA modalities, a heterogeneous RANDO phantom and the MatriXX Detector. The RANDO phantom study evaluated the dosimetric accuracy of a helical TomoTherapy system which resulted in a benchmark being established for dosimetric accuracy in heterogeneous materials. The MatriXX study evaluated the performance of the MatriXX Detector to determine if it could be used as a substitute for radiographic film in rotational IMRT delivery techniques. At least twenty test cases were selected for each study, and treatment plans were created using the Hi-Art …
Magnetoelastic Coupling In A Quantum Spin Ladder, Jessica Lynn White
Magnetoelastic Coupling In A Quantum Spin Ladder, Jessica Lynn White
Masters Theses
In this thesis, I present magnetic and optical property studies of a S = 1/2 Heisenberg antiferromagnetic quantum system. The compound under investigation is a copper halide spin ladder, (2,3-dmpyH)₂CuBr₄. This material is attractive not only because of its rarity as a spin ladder with strong magnetic exchange along the rail, but because copper halides are good model materials for the copper oxide systems. Both temperature and magnetic field were used to tune the system. Magnetization was performed, allowing us to observe the experimental critical fields. These critical fields were in reasonable agreement with the theoretical models we extrapolated from …