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Dilepton Production and Synchrotron Radiation in a Magnetized Quark-Qluon Plasma
, M.Sc. Thesis Sharif University of Technology ; Sadooghi, Neda (Supervisor)
Abstract
Relativistic collisions of heavy ions lead to the formation of a new phase of matter called Quark-Gluon Plasma (QGP). In addition, strong magnetic fields generates in these collisions that its direction is perpendicular to the collision axis. This strong magnetic field affects the dynamics of particles in the QGP, and causes the appearance of the Landau levels in the particle’s energy spectrum. In this master thesis, we investigate the impact of the magnetic field on dilepton production and synchrotron radiation. We calculate the scattering probability of quark and anti-quark annihilation and dilepton creation by taking all Landau Levels into account. Then, by assuming that the magnetic...
Evaluation of the Possibility of Diagnosing Female Gynecologic Cancer using X-Ray Fluorescence (XRF)Spectroscopy of Hair and Nail
, M.Sc. Thesis Sharif University of Technology ; Hosseini, Abulfazl (Supervisor) ; Salimi, Ehsan (Supervisor)
Abstract
In recent years, indirect methods of cancer detection that utilize changes in trace element levels in various parts of the body, such as hair and nails, have garnered significant attention from researchers.The primary objective of these methods is to identify alterations in trace element levels that serve as biological markers in the presence of disease. While direct examination of affected organs remains the gold standard for cancer diagnosis, it is often expensive, time-consuming, inconvenient, and associated with potential side effects. Therefore, if the effectiveness of this approach is validated, it could serve as a cost-effective, non-invasive, safe, and early diagnostic method in...
Optimization of the Magnets Arrangement in Insertion Devices and Minimizing the Phase Error Using Genetic Algorithm
, M.Sc. Thesis Sharif University of Technology ; Vousoghi, Naser (Supervisor) ; Saeedi, Farhad (Supervisor) ; Hadad, Mansour (Co-Supervisor)
Abstract
A synchrotron accelerator is a type of charged particle accelerator that uses insertion devices to generate high-intensity X-ray beams. One such insertion device is an undulator, which is made up of an array of magnet blocks. The Halbach method is used to arrange these blocks and create a pure permanent magnet (PPM) undulator. In this study, we used RADIA code to redesign an insertion device named SPEAR. PPMs are unique from one another due to differing remanence levels during construction, impacting their performance and effectiveness in various applications. Therefore, magnet sorting is a method used to reduce the phase error of the synchrotron radiation beam. Decreasing the phase error...