Emily Draeger
A5052571778- Advanced Radiotherapy Techniques
- Radiation Therapy and Dosimetry
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Muon and positron interactions and applications
- Nuclear Physics and Applications
- Effects of Radiation Exposure
- Particle Detector Development and Performance
- Radiation Dose and Imaging
- Dark Matter and Cosmic Phenomena
- Radiomics and Machine Learning in Medical Imaging
- Radiopharmaceutical Chemistry and Applications
- Advanced X-ray and CT Imaging
- Superconducting Materials and Applications
- Lung Cancer Diagnosis and Treatment
- Chemical and Physical Properties of Materials
- Brain Metastases and Treatment
- Particle accelerators and beam dynamics
- Advanced Fluorescence Microscopy Techniques
- Ultrasound and Hyperthermia Applications
- Scientific Research and Discoveries
- Diverse Scientific and Economic Studies
Yale University
2018-2024
University of Maryland, Baltimore
2016-2020
University of Maryland Medical Center
2016-2020
Illinois Institute of Technology
2012-2016
Institute of High Energy Physics
2012-2015
University of Minnesota System
2014
Nanjing University
2014
University of Minnesota, Duluth
2013
The Daya Bay Reactor Neutrino Experiment has measured a nonzero value for the neutrino mixing angle ${\ensuremath{\theta}}_{13}$ with significance of 5.2 standard deviations. Antineutrinos from six 2.9 $\mathrm{G}{\mathrm{W}}_{\mathrm{th}}$ reactors were detected in antineutrino detectors deployed two near (flux-weighted baseline 470 m and 576 m) one far (1648 underground experimental halls. With $43\text{ }000\text{ }\text{ }\mathrm{ton}--\mathrm{G}{\mathrm{W}}_{\mathrm{th}}--\mathrm{day}$...
A measurement of the energy dependence antineutrino disappearance at Daya Bay reactor neutrino experiment is reported. Electron antineutrinos (ν¯(e)) from six 2.9 GW(th) reactors were detected with detectors deployed in two near (effective baselines 512 and 561 m) one far (1579 underground experimental halls. Using 217 days data, 41 589 (203 809 92 912) candidates hall (near halls). An improved oscillation amplitude sin(2)2θ(13)=0.090(-0.009)(+0.008) first direct ν¯(e) mass-squared...
We report an improved measurement of the neutrino mixing angle $\theta_{13}$ from Daya Bay Reactor Neutrino Experiment. exclude a zero value for $\sin^22\theta_{13}$ with significance 7.7 standard deviations. Electron antineutrinos six reactors 2.9 GW$_{\rm th}$ were detected in antineutrino detectors deployed two near (flux-weighted baselines 470 m and 576 m) one far (1648 underground experimental halls. Using 139 days data, 28909 (205308) electron candidates at hall (near halls). The ratio...
This Letter reports a measurement of the flux and energy spectrum electron antineutrinos from six 2.9~GW$_{th}$ nuclear reactors with detectors deployed in two near (effective baselines 512~m 561~m) one far (1,579~m) underground experimental halls Daya Bay experiment. Using 217 days data, 296,721 41,589 inverse beta decay (IBD) candidates were detected halls, respectively. The measured IBD yield is (1.55 $\pm$ 0.04) $\times$ 10$^{-18}$~cm$^2$/GW/day or (5.92 0.14) 10$^{-43}$~cm$^2$/fission....
We report a new measurement of electron antineutrino disappearance using the fully constructed Daya Bay Reactor Neutrino Experiment. The final two eight detectors were installed in summer 2012. Including 404 days data collected from October 2012 to November 2013 resulted total exposure 6.9×10^{5} GW_{th} ton days, 3.6 times increase over our previous results. Improvements energy calibration limited variations between 0.2%. Removal six ^{241}Am-^{13}C radioactive sources reduced background by...
The MINERvA experiment is designed to perform precision studies of neutrino-nucleus scattering using $\nu_\mu$ and ${\bar\nu}_\mu$ neutrinos incident at 1-20 GeV in the NuMI beam Fermilab. This article presents a detailed description \minerva detector describes {\em ex situ} techniques employed characterize monitor its performance. comprised finely-segmented scintillator-based inner tracking region surrounded by electromagnetic hadronic sampling calorimetry. upstream portion includes planes...
We report a study of muon neutrino charged-current quasi-elastic events in the segmented scintillator inner tracker MINERvA experiment running NuMI beam at Fermilab. The were selected by requiring {\mu}^- and low calorimetric recoil energy separated from interaction vertex. measure flux-averaged differential cross-section, d{\sigma}/dQ^2, particle content final state. Deviations are found between measured d{\sigma}/dQ^2 expectations model independent nucleons relativistic Fermi gas. also...
We have isolated muon anti-neutrino charged-current quasi-elastic interactions occurring in the segmented scintillator tracking region of MINERvA detector running NuMI neutrino beam at Fermilab. measure flux-averaged differential cross-section, d{\sigma}/dQ^2, and compare to several theoretical models scattering. Good agreement is obtained with a model where nucleon axial mass, M_A, set 0.99 GeV/c^2 but vector form factors are modified account for observed enhancement, relative free case,...
We tested the ability of a single Compton camera (CC) to produce 3-dimensional (3D) images prompt gammas (PGs) emitted during irradiation tissue-equivalent plastic phantom with proton pencil beams for clinical doses delivered at dose rates. PG measurements were made small prototype CC placed three different locations along beam path. evaluated each location two scenarios: (1) delivery 2 Gy from hypo-fractionated treatment (~9 × 108 protons), and (2) standard (~1 protons). Additionally, data...
A search for light sterile neutrino mixing was performed with the first 217 days of data from Daya Bay Reactor Antineutrino Experiment. The experiment's unique configuration multiple baselines six 2.9~GW$_{\rm th}$ nuclear reactors to antineutrino detectors deployed in two near (effective 512~m and 561~m) one far (1579~m) underground experimental halls makes it possible test oscillations a fourth (sterile) $10^{\rm -3}~{\rm eV}^{2} < |\Delta m_{41}^{2}| 0.3~{\rm eV}^{2}$ range. relative...
A new measurement of the ${\ensuremath{\theta}}_{13}$ mixing angle has been obtained at Daya Bay Reactor Neutrino Experiment via detection inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen are distinct from those gadolinium with largely different systematic uncertainties, allowing a determination independent gadolinium-capture result and an improvement precision measurement. With 217-day data set six detectors $2.9\text{...
EBT-XD model of Gafchromic
Abstract Objective A newly developed Gafchromic TM EBT4 film model was released recently. According to the vendor‐stated specifications, this new maintains major features of its more recent predecessor, EBT3, but has a great improvement in signal‐to‐noise ratio (SNR). The purpose study fully characterize by testing dose response dependence on beam energy using clinical photon and electron beams validating SNR. Methods In experiments, 6 MV 15 beams, MeV, 12 MeV 20 120 kVp two 250 x‐ray (with...
A Compton imaging method for medical applications that includes new energy determination and data filtering techniques has been tested using several point sources with known emission lines. Using a prototype camera, distance-of-closest approach technique employed to determine the initial of incoming γs ensure reconstructed source position is within an acceptable distance from γ location. Further analysis done by implementing line technique, keeping only those interactions whose deposited in...
The Daya Bay reactor antineutrino experiment is designed to make a precision measurement of the neutrino mixing angle θ13, and recently made definitive discovery its non-zero value. It utilizes set eight, functionally identical detectors measure flux spectrum at baselines ∼ 300–2000 m from Ling Ao Nuclear Power Plants. were built in an above-ground facility deployed side-by-side three underground experimental sites near far nuclear reactors. This configuration allows disappearance over...
Abstract Purpose In vivo dosimetry is a common requirement to validate dose accuracy/uniformity in total body irradiation (TBI). Several detectors can be used for dosimetry, including thermoluminescent dosimeters (TLDs), diodes, ion chambers, optically stimulated luminescent (OSLDs), and film. TLDs are well established use but required expertise clinical system availability may make them impractical multifractionated TBI. OSLDs offer quick readout, recalls have restricted their use. The...
The Daya Bay Reactor Neutrino Experiment has measured the neutrino mixing angle θ 13 to world-leading precision.The experiment uses eight antineutrino detectors filled with 20-tons of gadolinium-doped liquid scintillator detect antineutrinos emitted from nuclear power plant through inverse beta decay reaction.The precision measurement sin 2 2θ relies on relative interaction rates between at near (400 m) and far (roughly 1.8 km) distances reactors.The rate in each detector is directly...
Jackson,. I. L., Gibbs, A., Poirier, Y., Wathen, Eley, J., Draeeger, E., Gopalakrishnan, M., Benjamin, B. and Vujaskovic, Z. Hematological Effects of Non-Homogenous Ionizing Radiation Exposure in a Non-Human Primate Model. Radiat. Res. 191, 428–438 (2019).Detonation radiological or nuclear device major urban area will result heterogenous radiation exposure, given to the significant shielding exposed population due surrounding structures. Development biodosimetry assays for triage treatment...