Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 51 for “"Experimental Physics"”.
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Implementation of the Fizeau aether drag experiment for an Undergraduate Physics Laboratory
… aether drag experiment in an undergraduate physics laboratory setting. The implementation is optimized to be inexpensive and reproducible in laboratories that aim to educate students in experimental physics. A detailed list of materials, experimental setup, and procedures is given. …
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Compton polarimeter for Qweak Experiment at Jefferson Laboratory
… be used to calculate preliminary values of experimental physics asymmetries and also the electron beam polarization. These preliminary results are promising indications that Qweak will be able to meet its stated precision goals.
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Two leptons, jets, and missing transverse momentum in ATLAS: yet more non-evidence for supersymmetry
… for new phenomena is an essential endeavour of experimental physics, and is helped by guidance from plausible theoretical predictions. This thesis presents such a search for signals of high-energy protons scattering to massive resonances with dramatic decays, which are predicted by …
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The cosmic ray muon energy spectum via Čerenkov radiation
… of cosmic ray muons for use in the graduate experimental physics courses, 8.811/2. The apparatus consists of a light-tight central volume with a phototube to detect the Cerenkov radiation of muons whose speed is higher than the speed of light in the medium with which the volume is filled. The …
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Rethinking laboratory activities with digital technologies and developments in physics education
… and active learning methodologies in physics education, focusing on both high school and introductory undergraduate laboratory courses. The research is motivated by the need to move away from traditional, teacher-centered approaches and embrace methods that actively engage students in …
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The Development of Quasi-Optical Techniques for Log Wavelength Imaging
… by the THz Optics group of the Department of Experimental Physics at NUI Maynooth, the aim of which was to extend existing quasi-optical techniques through experimental measurements and the development of simulation tools necessary for efficient design and analysis of long-wavelength optical …
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Seeing the Forest Through the Trees: Knowledge Retrieval for Streamlining Particle Physics Analysis
… long-running scientific collaborations. Within experimental particle physics, such structured knowledge bases could expedite methodological and editorial review. Complementarily, within the broader scientific community, generative LLM systems grounded in published work could make for reliable …
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Quasi-Optical Design and Analysis of a Bolometric Interferometer for Cosmic Microwave Background Radiation Experiments
… the optical combiner here at the Department of Experimental Physics in Maynooth University. This thesis describes the analysis techniques used for the characterisation of the operation of the QUBIC instrument. These techniques: TE/TM mode matching, Gaussian beam mode analysis and physical optics …
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Optimisation of a Near-Field Scanning System
… and a movable receiver, is in use in the Experimental Physics Department at NUI Maynooth. The position of the receiver is controlled by a two axis mechanical actuator. The function of the near field scanning system is to characterise and verify different optical components in the W-Band …
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Fluctuating surface currents : a new algorithm for efficient prediction of Casimir interactions among arbitrary materials in arbitrary geometries
… to a position of central importance in modern experimental physics. Dramatic progress in the measurement of Casimir forces since 1997 has created a demand for theoretical tools that can predict Casimir interactions in realistic experimental geometries and in materials with realistic …
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Electromagnetic Techniques for Analysis and Design of Ultra Sensitive Receivers for Far-Infrared Astronomy
… (Space Infrared Telescope for Cosmology and Astrophysics). The computational methods required for modelling SAFARI-like receivers are described, and sophisticated conical waveguide mode matching theory is derived. Generic far-IR systems are investigated, including analysis of SAFARI-like …
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Investigation of Horn Optimisation, Simulation and Measurement Techniques, with Application to Integrating Cavity Based Pixel Design
… (SPace Infrared telescope for Cosmology and Astrophysics), which contains an instrument known as SAFARI, a far infrared Fourier transform spectrometer that makes use of a Mach- Zehnder optical configuration. Such missions require high performance focal plane antennas, a position traditionally …
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Computational Modelling and Experimental Verifcation of Quasioptical Components at Millimetre Wavelengths
… relate to both computational simulation and experimental measurements carried out at NUI Maynooth. The majority of the analysis is centred around a frequency of 100 GHz, or a corresponding wavelength of 3 mm. Experimental measurements were performed on diffractive optical elements known as …
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Analysis of Quasi-Optical Components for Far-Infrared Astronomy
This thesis is concerned with the development and analysis of quasi-optical components used in experiments to measure of the CMB in the terahertz and submillimetre wavebands. I have concentrated on corrugated horn structures in the Planck and QUBIC experiments. A precise analysis of the …
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Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR
… geometries are modelled using the NUI Maynooth Experimental Physics departments in-house waveguide mode-matching soft- ware called SCATTER, and these are then used in the analysis of the telescope system. Further use of SCATTER is illustrated in work on ultra-Gaussian horns for STEAMR, and here …
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Design and analysis of a quasi-optical beam combiner for the QUBIC CMB interferometer
In winter 2009 a number of physicists met in Paris to discuss the prospect of observing the CMB B-mode polarization using a novel technique called bolometric interferometry. This was the first meeting of what would later become the QUBIC collaboration. In this thesis we discuss the scientific …
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Study of Electron-Impact Induced Fragmentation of Thymine
The aim of the experiment described in this thesis was to generate a molecular beam of thymine and to investigate the fragmentation processes induced by low-energy electron impact. A molecular beam of thymine is generated by placing thymine in powder form inside a resistively heated oven. The beam …
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Development of a scanning system for use in the Terahertz region of the Electromagnetic Spectrum
This thesis concerned the development of a scanner system for use in the Terahertz region of the Electromagnetic spectrum. The approach used by the prototype developed, utilises two tilting mirrors for the purposes of scanning a target under investigation. An object is scanned by tilting an …
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Electromagnetic Analysis of Horn Antennas in the Terahertz region
… later chapters. These effects are analysed both experimentally using a vector network analyser and within appropriate computational models.
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