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 12 of 12 for “"energy calibration"”.
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X-ray emission spectroscopic study of chloride solid compounds using synchrotron radiation
… materials in gas, liquid and solid phases with energy, angle and polarization dependence. A two-dimensional position-sensitive detector system with data acquisition software is developed for the spectrometer that allows collecting a complete x-ray emission spectrum simultaneously. Mechanical …
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Internal Radioactive Source Calibration of the Borexino Solar Neutrino Experiment
A measurement of solar neutrinos below 1 MeV of energy will further our knowledge of the neutrino's mass and mixing properties and will provide a probe to possible physics beyond the standard model of particle physics, as well as advance our understanding of energy production in the Sun. Borexino …
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Monochromator studies of nuclear resonance fluorescence in carbon, silicon, and magnesium
… the first experimental studies of isolated energy levels with the aid of the University of Illinois bremsstrahlung monochromator. The studies had as objectives both the development of techniques needed to make the monochromator a better tool for studying nuclear levels and the investigation …
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Neutron Measurements and Reactor Antineutrino Search with the SNO+ Detector in the Water Phase
… the detector volume to calibrate the detector's energy response and its response to neutrons. The $^{241}$Am$^{9}$Be source emits a unique coincidence signal with the prompt event being a 4.4 MeV $\gamma$ and the delayed a neutron capture signal (2.2 MeV $\gamma$). A novel, minimalistic, …
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PHENOMENOLOGY OF THE STANDARD MODEL AND BEYOND
… (including possible BSM effects therein) and jet energy calibration. In the second part of this dissertation, we propose a new method for measuring mt that reduces these sources of systematic uncertainty while involving complementary systematics. If implemented, this approach could significantly …
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Multi-photon decay mode spectroscopy of positronium
… detectors, each of which combines good energy resolutions (5% and 10% at 511 keV for the signals from the eighth dynode and anode of the photomultiplier tube, respectively) with an excellent timing resolution (∼ 300 ps). These energy resolutions were minimised through an optimal …
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Interactions of neutrons with silicon CCD chips
Dark matter makes up approximately 22% of the energy density of the universe and as much as 83% of its matter composition. Despite its ubiquitous nature, it remains incredibly difficult to detect due to the weakness of its interaction with the regular matter. The Dark Matter Time Projection Chamber …
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Assessment of Uncertainty In Planning and Dose Delivery of Proton Therapy In An Iroc- Houston Qa Phantom Due to Variable Ct Technique and Proton Energy
… due to variations in CT technique and proton energy. It was hypothesized that variations in CT technique and proton energy will alter the delivered dose distributions of typical proton treatments by reducing the percent of passing pixels by 10% using a gamma analysis criteria of ±3%/5mm as …
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Quantifying Uncertainty In A Measurement-Based Assessment of Relative Biological Effectiveness In Carbon Ion Radiotherapy
… (TEPC).</p> <p>Microdosimetric spectra, kinetic energy spectra, and dose fragment contributions were calculated using Monte Carlo (GEANT IV) for monoenergetic and SOBP carbon beams of clinical energy. From microdosimetric spectra, lineal energy values were calculated as functions of beam energy …
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PROBING THE HIGGS BOSON WITH THE ATLAS DETECTOR: PRECISION MEASUREMENTS OF THE MASS AND SEARCH FOR RARE DECAYS TO A LOW-MASS DILEPTON SYSTEM AND A PHOTON IN PROTON-PROTON COLLISIONS AT THE LHC
… between 2015 and 2018 at a centre-of-mass energy of $\sqrt{s} = 13$~TeV, corresponding to an integrated luminosity of 140~fb$^{-1}$, and data recorded during the first part of Run~3 between 2022 and 2024 at $\sqrt{s} = 13.6$~TeV, corresponding to 165~fb$^{-1}$. The analyses focus on a …
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Measurement of the ultra high energy cosmic ray flux from data of very inclined showers at the Pierre Auger Observatory
This work describes the derivation of the energy dependent flux of ultra-high energy cosmic rays from data of very inclined air showers observed with the Pierre Auger Observatory. The Pierre Auger Observatory measures extensive air showers initiated by interactions of ultra-high energy cosmic rays …