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 88 for “"Proton Beam"”.
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Control and characterization of a cyclotron proton beam
The cyclotron proton beam accelerator at the University of Missouri Research Reactor (MURR) is used for positron emission tomography (PET) applications. Pharmaceutical radioisotopes are produced and delivered to local hospitals for cancer diagnosis and nuclear imaging. The proton beam's energy is …
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Searching for new physics with Fermilab’s proton beam
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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External proton beam analysis of plasma facing materials for magnetic confinement fusion applications
… study of surfaces (CLASS). At CLASS, an external proton beam set-up was designed and constructed to perform in-air ion beam analysis on plasma facing divertor tiles from the Alcator C-Mod tokamak. A Particle Induced Gamma Emission (PIGE) technique was developed for boron depth profiling. In …
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FABRICATION OF POLYMER NANOFLUIDIC CHIPS WITH PROTON BEAM WRITING AND NANOIMPRINTING FOR DNA LINEARIZATION
… devices are discussed with focusing on proton beam lithography, Ormostamp mold casting, nanoimprinting on PMMA and bonding procedures. Among various nanofabrication methods and chip substrate material, several type of polymer substrates are evaluated on throughput and functionality. The …
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PROTON BEAM WRITING OF MICRO/NANO FLUIDIC DEVICES FOR DNA ANALYSIS AND PARTICLE SEPARATION
… PDMS and PMMA fluidic devices molding through proton beam writing (PBW). The fluidic devices were further used for the study of DNA configuration using a nanochannel confinement and particle separation using a ratchet structure. PBW is a direct write technique can be focused down to sub 30 nm …
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Towards patient selection for cranial proton beam therapy – Assessment of current patient-individual treatment decision strategies
Proton beam therapy shows dosimetric advantages in terms of sparing healthy tissue compared to conventional photon radiotherapy. Those patients who are supposed to experience the greatest reduction in side effects should preferably be treated with proton beam therapy. One option for this patient …
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Measurement of inclusive Lambda / Antilambda hyperon polarisation in proton nucleus collisions at 920 GeV proton beam energy
… of the HERA-B detector at HERA, DESY, using the proton beam of 920 GeV energy to collide with fixed target wires of different materials. A sample of approximately 2900 Lambdas was obtained in a kinematical region of transverse momentum p_t in [0.2,2.2] GeV/c and Feynman variable x_F in …
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Proton beam steering control system for high precision radiotherapy at iThemba LABS : an investigation on actuator saturation constraints
… with constraints with special application to the Proton beam steering control at iThemba LABS. The steering of charged particles occurring in research plants is one of the interests of control systems. In this work an investigation of the algorithm for the control of the proton beam steering …
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Measurements of gamma-ray production cross sections of proton beam at energies of 66 to 125 MeV with calcium target
… Primary cosmic rays are composed mainly of protons, alpha particles and nuclei of many heavier elements. Secondary cosmic rays including neutrons, pions, positrons, and muons are created following the interaction of primary cosmic rays with atmo- sphere. A lot of radioisotopes are formed by …
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Development and Implementation of A Dynamic Heterogeneous Proton Equivalent Anthropomorphic Thorax Phantom For The Assessment of Scanned Proton Beam Therapy
… AND IMPLEMENTATION OF A DYNAMIC HETEROGENEOUS PROTON EQUIVALENT ANTHROPOMORPHIC THORAX PHANTOM FOR THE ASSESSMENT OF SCANNED PROTON BEAM THERAPY</p> <p>by</p> <p><em>James Leroy Neihart, B.S.</em></p> <p>APPROVED:</p> <p><br />______________________________<br />David Followill, Ph.D.<br /><br …
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Measurement of high-mass dimuon production for p+p and p+d collisions with 120 GeV proton beam at Fermilab
… experiment at Fermilab using 120 GeV proton beam from the Main Injector. High-mass muon pairs from the interaction of proton beam with various liquid and solid targets were detected in a newly constructed spectrometer. The primary goal of the experiment is to study the sea quark …
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Measurement of the analyzing power in inclusive, high-x(F) charged pion production with a 200 GeV/c polarized proton beam
… and $\pi{-}$ production by a 200 GeV/c polarized proton beam was found to have a striking $x\sb{F}$ dependence in which the magnitude of A$\sb{\rm N}$ increases from 0 to 0.42 for the $\pi\sp{+}$ data and decreases from 0 to $-0.38$ for the $\pi\sp{-}$ data for increasing $x\sb{F}$ over the …
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Probing parton distributions in proton using Drell-Yan and charmonium production in p + p and p + d interactions with 120 GeV proton beam at Fermilab
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Probing parton distributions in proton using Drell-Yan and charmonium production in p + p and p + d interactions with 120 GeV proton beam at Fermilab
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Assessment of the use of prompt gamma emission for proton therapy range verification
PURPOSE: Prompt gamma rays emitted from proton-nucleus interactions in tissue present a promising non-invasive, in situ means of monitoring proton beam based radiotherapy. This study investigates the fluence and energy distribution of prompt gamma rays emitted during proton irradiation of phantoms. …
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Risk of Second Malignant Neoplasms Following Proton Arc Therapy and Volumetric Modulated Arc Therapy For Prostate Cancer
… at diagnosis. It is known that parallel-opposed beam proton therapy carries a lower risk than photon IMRT. However, a comparison of SMN risk following proton and photon arc therapies has not previously been reported. The purpose of this study was to predict the ratio of excess relative risk …
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Feasibility of microwave radar system for proton emission therapy control.
… implemented specifically for cancer treatment is proton therapy. However, to safely implement this procedure on the thorax or abdomen, it is important to monitor lung and heart motion, as these organs displace local tissues. Conventional methods used for measurement of a patient's vital signs …
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