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Determination of the energy spectra of clinical x-ray beams using dose-depth data sets
(2018-05)
A method to determine the energy spectra of clinical x-ray beams based on dose-depth datasets measured in the absorber of known composition and thicknesses was developed, implemented by a computer and tested. An iterative ...
Comparison of plastics used in tissue equivalent proportional counters (TEPC) and development of a balloon borne TEPC
(2012-12)
This study investigates alternatives to A-150 tissue equivalent plastic for use in the construction of tissue equivalent gas-filled detectors for the measurement of dosimetric quantities. This study looks at four different ...
Fermion masses and mixings, Leptogenesis and baryon number violation in unified theories
(2017-07)
In this dissertation, we study physics beyond the Standard Model (SM) of particle physics to incorporate some of its unexplained phenomenon. Grand Unified Theories (GUTs) are natural extensions of the SM, since gauge ...
Role of cosmic rays in lightning initiation
(2014-07)
From electric field measurements, the maximum electric fields typically found within a thunderstorm are an order of magnitude too weak to initiate a lightning discharge. Relativistic electrons produced in galactic cosmic ...
Atomic force microscopy methods for the analysis of high-let tracks in CR-39 plastic nuclear track detector
(2009-07)
Scope and Method of Study: Proton- and neutron-induced target fragmentation reactions generate short-range (~1-10 µm), high-linear energy transfer (LET) heavy nuclear recoil (HNR) particles that contribute to total radiation ...
Disorder effect in graphene and topological insulator
(2012-07)
Scope and Method of Study:
Study of secondary neutrons from uniform scanning proton beams by means of experiment and simulation
(2013-07)
Proton radiotherapy is becoming popular as an effective modality to treat cancer. However the advantages of the proton radiotherapy could be offset due to the effect of secondary neutrons. Secondary neutrons are an undesired ...
State dependence of quantum ratchets
(2017-05)
This dissertation reports on the experimental investigation of quantum state evolution using the atomic-optical quantum delta kicked rotors (AOQDKR) with a Bose- Einstein condensate (BEC) of 87Rb atoms. To achieve the ...