Browsing by Subject "Physics"
Now showing items 1-20 of 265
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(0,2) hybrid models
(Journal of High Energy Physics, 2018-09-01)© 2018, The Author(s). We introduce a class of (0,2) superconformal field theories based on hybrid geometries, generalizing various known constructions. We develop techniques for the computation of the complete massless ... -
A CG-FFT Based Fast Full Wave Imaging Method and its Potential Industrial Applications
(2015)This dissertation focuses on a FFT based forward EM solver and its application in inverse problems. The main contributions of this work are two folded. On the one hand, it presents the first scaled lab experiment system ... -
A Convolutional Neural Network for SPECT Image Reconstruction
(2022)Purpose: Single photon emission computed tomography (SPECT) is considered as a functional nuclear medicine imaging technique which is commonly used in the clinic. However, it suffers from low resolution and high noise because ... -
A Deep-Learning-based Multi-segment VMAT Plan Generation Algorithm from Patient Anatomy for Prostate Simultaneous Integrated Boost (SIB) Cases
(2021)Introduction: Several studies have realized fluence-map-prediction-based DL IMRT planning algorithms. However, DL-based VMAT planning remains unsolved. A main difficult in DL-based VMAT planning is how to generate leaf sequences ... -
A Dosimetric Characterization of Novel Formulations of Presage 3D Dosimeters
(2014)<bold>Purpose:</bold> The purpose of this work is to characterize three novel formulations of a radiochromic material Presage and identify optimal imaging procedures for accurate 3D dosimetry. The dosimetric qualities of ... -
A High Precision Measurement of the Proton Charge Radius at JLab
(2020)The elastic electron-proton ($e-p$) scattering and the spectroscopy of hydrogen atoms are the two traditional methods to determine the proton charge radius ($r_{p}$). In 2010, a new method using the muonic hydrogen ... -
A hybrid ion-atom trap with integrated high resolution mass spectrometer
(Review of Scientific Instruments, 2019-10-01)© 2019 Author(s). In this article, we describe the design, construction, and implementation of our ion-atom hybrid system incorporating a high resolution time of flight mass spectrometer (TOFMS). Potassium atoms (39K) in ... -
A Measurement of the Proton Structure Function g2p at Low Q2
(2016)Experiments at Jefferson Lab have been conducted to extract the nucleon spin-dependent structure functions over a wide kinematic range. Higher moments of these quantities provide tests of QCD sum rules and predictions of ... -
A Measurement of the Radiation Environment Around Prompt J/ψ Events at ATLAS
(2017)The J/ψ particle has been the source of much research since itsdiscovery in 1974. It provides an important probe of quantumchromodynamics and has lead to many important insights into theinteractions of quarks and gluons ... -
A Measurement of The Response of A High Purity Germanium Detector to Low-Energy Nuclear Recoils
(2022)The Standard model process of Coherent Elastic Neutrino-Nucleus Scattering (CEvNS), which was first predicted by Freedman in 1974, has recently been observed by the COHERENT collaboration on CsI and liquid argon targets. ... -
A microscopic model of the Stokes-Einstein relation in arbitrary dimension.
(The Journal of chemical physics, 2018-06)The Stokes-Einstein relation (SER) is one of the most robust and widely employed results from the theory of liquids. Yet sizable deviations can be observed for self-solvation, which cannot be explained by the standard ... -
A New Method to Investigate RECA Therapeutic Effect
(2020)Introduction: RECA (Radiotherapy Enhanced with Cherenkov photo- Activation) is a novel treatment that induces a synergistic therapeutic effect by combining conventional radiation therapy with phototherapy using the anti-cancer ... -
A novel technique to irradiate surgical scars using dynamic electron arc radiotherapy
(2017)Purpose: The usage of conformal electron beam therapy techniques in treating superficial tumors on uneven surfaces has often lead to undesired outcomes such as non-uniform dose inside the target and a wide penumbra at boundary ... -
A Precision Measurement of Neutral Pion Lifetime
(2018)The neutral pion decays via chiral anomaly and this process historically led to the discovery of the chiral anomaly. The $\pi^0$ decay amplitude is among the most precise predictions of quantum chromodynamics (QCD) at low ... -
A Search for a New Particle Decaying to Pairs of Weak Gauge Bosons with the ATLAS Detector
(2016)A search for new heavy resonances decaying to boson pairs (WZ, WW or ZZ) using 20.3 inverse femtobarns of proton-proton collision data at a center of mass energy of 8 TeV is presented. The data were recorded by the ATLAS ... -
A Search for Supersymmetry in Multi-b Jet Events with the ATLAS Detector
(2019)A search for supersymmetry in pair-produced gluinos decaying via top squarks to the lightest neutralino is presented. Events with multiple hadronic jets, of which at least three must be identified as originating from b-quarks, ... -
A Search for tt ̄ Resonances in the Lepton Plus Jets Channel from Proton-Proton Collisions at √s = 8 TeV with the ATLAS Detector
(2014)A search for the resonant production of top quark pairs inproton-proton collisions at a center-of-mass energy of 8~TeV ispresented.The Large Hadron Collider delivered 14 inverse femtobarns of collisiondata which were collected ... -
A Semi-Empirical Monte Carlo Method of Organic Photovoltaic Device Performance in Resonant, Infrared, Matrix-Assisted Pulsed Laser Evaporation (RIR-MAPLE) Films
(2015)Utilizing the power of Monte Carlo simulations, a novel, semi-empirical method for investigating the performance of organic photovoltaics (OPVs) in resonant infrared, matrix-assisted pulsed laser evaporation (RIR-MAPLE) ... -
A stochastic-Lagrangian particle system for the Navier-Stokes equations
(Nonlinearity, 2008-11-01)This paper is based on a formulation of the Navier-Stokes equations developed by Constantin and the first author (Commun. Pure Appl. Math. at press, arXiv:math.PR/0511067), where the velocity field of a viscous incompressible ... -
A Tool for Approximating Radiotherapy Delivery via Informed Simulation (TARDIS)
(2020)Purpose: The multi-leaf collimator (MLC) is a critical component in intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT). The MLC discrepancies between planned and actual position directly ...
