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 107 for “"Energy Resolution"”.
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A Study of High Energy-Resolution and at Low Primary Energies of the Secondary Electron Emission From (100) Tungsten
Made available in DSpace on 2015-05-12T21:41:39Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6706698.PDF: 3471754 bytes, checksum: 55771bb48e63d8dd7ed8d16ef08a4168 (MD5) Previous issue date: 1966
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Multi-pixel charge sharing energy reconstruction (MCSER) algorithm with application in small-pixel semiconductor detectors
… paper, we discuss a multi-pixel charge sharing energy reconstruction (MCSER) algorithm that could be used to enhance the spectral performance of the small-pixel CdTe/CZT semiconductor detectors. This algorithm, by exploiting the patterns of charge sharing between adjacent pixels, allows for an …
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Investigation of the Photoneutron Cross Section in Lead-206 and Lead-208 From 9 to 16 Mev (Photon, Statistical, Decay, Giant Resonance)
… Tagged Photon Facility and had an effective energy resolution of around 400 keV. Neutron energies were determined by time of flight through a 1.5 meter path. The effective energy resolution of the neutrons was between 7.6% at 1 MeV and 12.5% at 5 MeV. Neutron detector efficiency was …
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System-on-chip-based radiation imaging system with pulse shape discrimination capability
… surface conditioning affected its position and energy resolution for image reconstruction. The fully polished crystals achieved the best energy resolution at 8.3% while the fully roughened crystal produced the lowest position uncertainties at 1.7mm and 2.9mm for the linear and sigmoid fits, …
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DESIGN, DEVELOPMENT AND VALIDATION OF NOVEL ELECTRICAL CONTACTING SYSTEMS, MECHANICAL ENCAPSULATION SOLUTIONS AND HIGH-RESOLUTION INTEGRATED CHARGE-SENSITIVE PREAMPLIFIERS FOR ADVANCED HIGH-PURITY GERMANIUM DETECTORS
… experiments due to their outstanding energy resolution and precise position sensitivity. However, detailed technical and manufacturing specifications for these detectors are typically proprietary, as they are provided by commercial manufacturers. To overcome this limitation, the …
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EXPERIMENTAL AND COMPUTATIONAL STUDIES OF NONLINEAR QUENCHING IN MATERIALS USED AS RADIATION DETECTORS
… in security scanning, medical imaging, and high energy physics applications depend on understanding the physical mechanisms that limit intrinsic energy resolution. Nonproportionality between electron energy response and the initial energy of a stopping electron is a significant cause of the …
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Investigation of the photoneutron cross section in 206Pb and 208 Pb from 9 to 16 MeV
… Tagged Photon Facility and had an effective energy resolution of around 400 keY. Neutron energies were determined by time of flight through a 1.5 meter path. The effective energy resolution of the neutrons was between 7.6% at 1 MeV and 12.5% at 5 MeV. Neutron detector efficiency was …
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Hybrid pixel-waveform semiconductor detectors: novel detector readout for semiconductor pet imaging of small animal neurodegenerative models
… common performance criteria such as timing resolution, energy resolution, and spatial resolution with efforts aimed at deconstructing the performance limitations as a PET detector module intended for imaging small animal neurodegenerative models. HPWF CdTe detectors utilize a simplified …
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Calorimetry at a Future Linear Collider
… in contrast to traditional calorimetry, uses the energy measurements for charged particles from the tracking detectors. This can only be realised if calorimetric energy deposits from charged particles can be separated from those of neutral particles. This is made possible with fine granularity …
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Negative ion photoelectron spectroscopy of cobalt tricarbonylnitrosyl
… were obtained at a calculated electronic kinetic energy resolution of 96 meV using a newly constructed fixed-frequency negative ion photoelectron spectrometer, which is described. Electron affinities of 1.72 (±0.03) eV for Co(CO)₃NO and 1.73 (±0.03) eV for Co(CO)₂NO are obtained. The photoelectron …
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Yield, Kinetic Energy, Pairing Effect, and Shell Effect of Light Fission Products for Thermal-Neutron Fission of Uranium-233
… fission of U-233. HIAWATHA has an energy resolution of 0.3%, a mass resolution of 0.5 amu, and an atomic-number resolving power of 38. The yields were measured as a function of mass number, atomic number, and kinetic energy. Detailed comparison shows that the present results are in …
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Investigation of temperature effects on electro mechanically cooled Ge detectors
… that Ge detectors encountered problems with energy resolution when they were located in uncontrolled environmental conditions, in which temperature variations can be as great as 30°�C. This project aims to investigate how much of an effect this temperature variation has on the resolution of …
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Ionization Chamber Design, Development, and Testing for the UNM Fission Fragment Spectrometer
… be a multi-armed spectrometer that will use high resolution measurements and event by-event analysis to add to the library of nuclear fission data. Our group at the University of New Mexico is working as a collaborator on the SPIDER project to achieve a mass resolution of 1 amu with our own UNM …
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Alcator C-Mod soft X-ray pulse height analysis system
… soft X-rays in the 1-30 keV range with an energy resolution on the order of 100eV. A FASTComtec MCA-3 multichannel analyzer allows integration times of ims while the PHA supports counting rates of up to 80kHz. The thermal electron temperature is measured from the energy dependence of the …
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Transition-Edge Sensors for Electron Spectroscopy
… I show that TESs are capable of matching the energy resolution of traditional electron spectrometers whilst providing order of magnitude improvements in measurement efficiency. I then describe the design and testing of a TES electron detection system that I used to perform a set of …
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Radioactive source measurements in a liquid xenon time projection chamber
… such research with a study of charge-collection energy resolution, with radioactive source measurements in a liquid xenon time projection chamber (TPC).
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Untersuchung neutraler pi-Mesonen mit dem elektromagnetischen Kalorimeter des BABAR-Detektors
… was developed to take into account the different energy losses between the edges and centres of the crystals. An improvement of the energy resolution of photons was achieved by 15%, depending on the energy. For Y(4S) and continuum events a momentum spectrum of inclusively produced neutral pions …
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Production of cold electron beams for collision experiments with stored ions
… have been performed on this device. Longitudinal energy spreads where studied in dependence of several parameters using the installed retarding field energy analyzer. The operation of the ETS together with the existing electron cooler device could be demonstrated in a storage ring experiment. An …
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MAPS calorimetry for a future linear collider
… saturation as a function of reset time, and energy resolution for single electrons. The energy resolutionσ (E)/E was found to be (0.1147±0.0004)/E\(^{1/2}\)(GeV\(^{1/2}\)). The remaining studies describe part of the calibration process for prototype MAPS sensors and how those sensors were …
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Deuteron compton scattering below pion threshold
… spectrometers. These detectors have sufficient energy resolution ($\sim$2$\%$ at 100 MeV) to separate the elastically and inelastically scattered photons. The extracted scattering cross section for this experiment was found to have angular distributions that matched prior experiments but needed …
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