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.
Results
Showing 1 to 20 of 52 for “"Experimental Physics"”.
-
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. …
-
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.
-
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 …
-
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 …
-
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 …
-
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 …
-
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 …
-
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 …
-
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 …
-
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 …
-
A Study of the Change in the Temperature of Maximum Density of Water and Aqueous Solutions as a function of Pressure
… water this occurs at a rate of 1 C per 50 bar. Experimentally the shift in the temperature of maximum density of aqueous solutions is tracked over the pressure range 1 to 100 bar. It is found that the temperature of maximum density drops as the pressure rises for all solutes studied, but that …
-
A Study of the Non-linear Variation in the Temperature of the Water Density Anomaly as a Function of Solute Concentration
In this study an experimental technique which permits detailed study of the temperature of maximum density of pure water and aqueous solutions is presented. The density of water as a function of temperature passes through a maximum at 3.98C. This temperature of maximum density (Tmd) changes when …
-
Quasi-Optical Design and Analysis of Bolometric Interferometers for Cosmic Microwave Background Experiments
… has already been built and has been used for experimental observations. The main aim of this prototype has been to prove the concept of bolometric interferometry for measurements of the CMB. In this thesis the optical combiner of MBI-4 is designed and modelled in detail, taking into account …
-
Advanced optical calibration of the Herschel HIFI heterodyne spectrometer
The Heterodyne Instrument for the Far-Infrared (HIFI) was launched aboard the Herschel Space Observatory on the 14th of May 2009. HIFI's frequency range is spread over 7 mixer bands. Bands 1-5 (480-1270 GHz) use Superconducting-Insulator-Superconducting (SIS) mixer technology while bands 6 & 7 …
-
Modal Analysis of Millimetre-wave and Terahertz Imaging Systems
… expansion of conical lenses, and experimental measurements of a conical lens is presented to explore the validity of the use of these optical elements as horn coupled devices in millimetre wave imaging systems. A study of diffractive Fresnel lenses has been undertaken with a …
-
Electron impact excitation of 2p states in atomic hydrogen
This thesis presents the results of experimental investigation of coherence in the excitation of the 2p states of atomic hydrogen through a collision with an unpolarised electron. The polarisation correlation variation of the delayed coincidence method has been employed to simultaneously measure …
-
A Study of Heat Transfer and Heat Flow Asymmetry through Water in the presence of the Density Maximum
… on these changes. These changes are investigated experimentally and numerically. The study of the behaviour of heat transfer and the temperature of maximum density of aqueous solutions revealed that heat transfer is reduced in the vicinity of the density maximum and that the temperature of maximum …
-
The Design and Optimisation of Quasioptical Telescopes
The main focus of this thesis is the analysis and optimisation of systems that operate in the terahertz and submillimetre wavebands. Analysis is carried out on the MBI and ALMA interferometers, and on the HIFI instrument on the Herschel Space Observatory (HSO). MBI is a novel instrument designed to …
-
Development of an Apparatus for the Study of Electron Impact Fragmentation of Molecular Clusters
The aim of the experiment described in this thesis was to generate a beam of molecular clusters and to look at fragmentation processes induced by low-energy electron impact. These processes are studies by time-of-flight detection of ionised and neutral metastable fragments. A beam of molecular …
Page 1 of 3