Anna Erickson
A5038015917- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Particle physics theoretical and experimental studies
- Nuclear reactor physics and engineering
- Astrophysics and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Dark Matter and Cosmic Phenomena
- Advanced X-ray and CT Imaging
- Nuclear Materials and Properties
- Particle Detector Development and Performance
- Radioactive contamination and transfer
- Radiation Therapy and Dosimetry
- Pulsed Power Technology Applications
- Nuclear physics research studies
- Semiconductor materials and devices
- Occupational and Professional Licensing Regulation
- Gyrotron and Vacuum Electronics Research
- Graphite, nuclear technology, radiation studies
- Academic and Historical Perspectives in Psychology
- Nuclear and radioactivity studies
- Radioactivity and Radon Measurements
- Boron Compounds in Chemistry
- Ga2O3 and related materials
- Silicon Nanostructures and Photoluminescence
Georgia Institute of Technology
2016-2025
State Street (United States)
2015-2021
Georgia State University
2019
Lawrence Livermore National Laboratory
2011-2018
Massachusetts Institute of Technology
2011
RTX (United States)
2011
Apple (United States)
2011
Los Alamos National Laboratory
2004
Transitions Optical (United States)
2002
The PROSPECT Collaboration presents their improved results with new limits on the oscillation of electron antineutrinos to light sterile neutrinos and energy spectrum measurements several short baselines.
This Letter reports the first scientific results from observation of antineutrinos emitted by fission products $^{235}\mathrm{U}$ at High Flux Isotope Reactor. PROSPECT, Precision Reactor Oscillation and Spectrum Experiment, consists a segmented 4 ton $^{6}\mathrm{Li}$-doped liquid scintillator detector covering baseline range 7--9 m reactor operating under less than 1 water equivalent overburden. Data collected during 33 live days operation nominal power 85 MW yield detection $25\text{...
The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to make a precise measurement of the antineutrino spectrum from highly-enriched uranium reactor probe eV-scale sterile neutrinos by searching for neutrino oscillations over meter-long distances. PROSPECT conceived as 2-phase experiment utilizing segmented $^6$Li-doped liquid scintillator detectors both efficient detection antineutrinos through inverse beta decay reaction excellent background discrimination....
If dark matter has mass lower than around 1 GeV, it will not impart enough energy to cause detectable nuclear recoils in many direct-detection experiments. However, if is upscattered high by collisions with cosmic rays, may be both experiments and neutrino We report the results of a dedicated search for boosted rays using PROSPECT reactor antineutrino experiment. show that such flux would display characteristic diurnal sidereal modulation, use this set new experimental constraints on sub-GeV...
We present a search for Lorentz violation with 8249 candidate electron antineutrino events taken by the Double Chooz experiment in 227.9 live days of running. This analysis, featuring sidereal time dependence events, is first test invariance using reactor-based source. No variation data and disappearance results are consistent independent oscillations. Under Standard-Model Extension, we set limits on 14 violating coefficients associated transitions between tau flavor, two competitive muon flavor.
This Letter reports the first measurement of $^{235}$U $\overline{\nu_{e}}$ energy spectrum by PROSPECT, Precision Reactor Oscillation and Spectrum experiment, operating 7.9m from 85MW$_{\mathrm{th}}$ highly-enriched uranium (HEU) High Flux Isotope Reactor. With a surface-based, segmented detector, PROSPECT has observed 31678$\pm$304 (stat.) $\overline{\nu_{e}}$-induced inverse beta decays (IBD), largest sample HEU fission to date, 99% which are attributed $^{235}$U. Despite broad agreement,...
This Letter reports one of the most precise measurements to date antineutrino spectrum from a purely 235U-fueled reactor, made with final dataset PROSPECT-I detector at High Flux Isotope Reactor. By extracting information previously unused segments, this analysis effectively doubles statistics previous PROSPECT measurement. The reconstructed energy is unfolded into and compared both Huber-Mueller model commercial reactor burning multiple fuel isotopes. A local excess over observed in 5–7 MeV...
Abstract Weapons-grade uranium and plutonium could be used as nuclear explosives with extreme destructive potential. The problem of their detection, especially in standard cargo containers during transit, has been described “searching for a needle haystack” because the inherently low rate spontaneous emission characteristic penetrating radiation ease its shielding. Currently, only practical approach uncovering well-shielded special materials is by use active interrogation using an external...
There are no efficient Eu2+ doped glass neutron scintillators reported due to low doping concentrations of and the amorphous nature matrix. In this work, an CaF2:Eu ceramic scintillator was prepared by forming nanocrystals in a 6Li-containing Through appropriate thermal treatments, scintillation light yield transparent increased factor at least 46 compared as-cast glass. This improvement attributed more energy transfer from CaF2 crystals emitting centers. Further is expected if refractive...
A joint determination of the reactor antineutrino spectra resulting from fission ^{235}U and ^{239}Pu has been carried out by Daya Bay PROSPECT Collaborations. This Letter reports level consistency spectrum measurements two experiments presents new results a analysis both data sets. The are found to be consistent. combined reduces degeneracy between dominant isotopes improves uncertainty spectral shape about 3%. energy unfolded jointly deconvolved using Wiener-SVD unfolding method, providing...
The PROSPECT and STEREO collaborations present a combined measurement of the pure ^{235}U antineutrino spectrum, without site specific corrections or detector-dependent effects. spectral measurements two highest precision experiments at research reactors are found to be compatible with χ^{2}/ndf=24.1/21, allowing joint unfolding prompt energy into energy. This ν[over ¯]_{e} spectrum is provided community, an excess events relative Huber model in 5-6 MeV region. When Gaussian bump fitted...
The PROSPECT experiment is designed to perform precise searches for antineutrino disappearance at short distances (7–9 m) from compact nuclear reactor cores. This Letter reports results a new neutrino oscillation analysis performed using the complete data sample PROSPECT-I detector operated High Flux Isotope Reactor in 2018. uses multiperiod selection of inverse beta decay interactions with reduced backgrounds and enhanced statistical power set limits on electron caused by mixing sterile...
This paper describes the design and performance of a 50 liter, two-segment $^{6}$Li-loaded liquid scintillator detector that was designed operated as prototype for PROSPECT (Precision Reactor Oscillation Spectrum) Experiment. The constructed according to specifications experiment. It features low-mass optical separators, an integrated source calibration system, materials are compatible with $^{6}$Li-doped developed by PROSPECT. We demonstrate high light collection 850$\pm$20 PE/MeV, energy...
We present a cost-effective new approach for generating denser depth maps Autonomous Driving (AD) and Vehicles (AVs) by integrating the images obtained from deep neural network (DNN) 4D radar detectors with conventional camera RGB images. Our introduces novel pixel positional encoding algorithm inspired Bartlett's spatial spectrum estimation technique. This transforms both into unified image subspace called Spatial Spectrum, facilitating effective learning based on their similarities...
We present initial results on nuclear recoil detection based the fluorescence of color centers created by recoils in lithium fluoride. use gamma rays, fast and thermal neutrons, study difference responses they induce, showing that this type detector is rather insensitive to rays. light-sheet microscopy image tracks from neutron interactions deep inside a cubic-centimeter sized crystal demonstrate automated feature extraction three dimensions using machine learning tools. The number, size,...
Double Chooz is unique among modern reactor-based neutrino experiments studying $\bar \nu_e$ disappearance in that data can be collected with all reactors off. In this paper, we present from 7.53 days of reactor-off running. Applying the same selection criteria as used reactor-on oscillation analysis, a measured background rate 1.0$\pm$0.4 events/day obtained. The model for accidentals, cosmogenic $\beta$-$n$-emitting isotopes, fast neutrons cosmic muons, and stopped-$\mu$ decays analysis...
An approach for determining the optimal laser parameters (i.e., pulse energy, focused spot size, wavelength, and duration) correlating single-event transients induced via two-photon absorption (TPA) heavy ions is presented. The focuses on identification extraction of waveform characteristics, or "features," minimizing error between features produced by TPA ions. Modifying optical can directly impact TPA-induced transients. Consequently, that minimize extracted laser- ion-induced waveforms be...
This work reports the production and characterization of lithium-loaded liquid scintillator (LiLS) for Precision Reactor Oscillation Spectrum Experiment (PROSPECT) . Fifty-nine 90 liter batches LiLS (6Li mass fraction 0.082%±0.001%) were produced samples from all characterized by measuring their optical absorbance relative to air, light yield a pure reference, pulse shape discrimination capability. Fifty-seven passed quality assurance criteria used PROSPECT experiment.
The Non-Proliferation Treaty and other non-proliferation agreements are in place worldwide to ensure that nuclear material facilities used only for peaceful purposes. Antineutrino detectors, sensitive reactor power fuel changes, can complement the tools already at disposal of international agencies safeguard verify States' compliance with agreements. Recent advancement these detectors has made it possible leverage them reduce likelihood an undetected diversion irradiated material. Here we...
Abstract The precision reactor oscillation and spectrum experiment, PROSPECT, has made world-leading measurements of antineutrinos at short baselines. In its first phase, conducted the high flux isotope (HFIR) Oak Ridge National Laboratory, PROSPECT produced some strongest limits on eV-scale sterile neutrinos, a measurement antineutrino from 235 U, demonstrated observation in an aboveground detector with good energy resolution well-controlled backgrounds. collaboration is now preparing...
Recent measurements of reactor-produced antineutrino fluxes and energy spectra are inconsistent with models based on measured thermal fission beta spectra. In this paper, we examine the dependence production neutron energy. particular, variation product yields has been considered as a possible source discrepancies between observations models. simulations low-enriched highly-enriched reactor core designs, find substantial fraction fissions (from 5% to more than 40%) caused by non-thermal...
AbstractThe conceptual design of the subcritical advanced burner reactor (SABR), a 3000-MW(thermal) annular, modular sodium pool–type fast reactor, fueled by metallic transuranic (TRU) fuel processed from discharged light water and driven tokamak D-T fusion neutron source based on ITER physics technology, has been substantially upgraded. Several issues related to integration fission technologies have addressed, e.g., refueling pool located within magnetic coil configuration tokamak,...
Plastic scintillators based on thermoplastics, such as polystyrene and poly(vinyl toluene) (PVT), are capable of neutron γ radiation detection via pulse shape discrimination (PSD) when overdoped with select fluorescent molecules. This class plastic scintillator has been extensively studied but is limited to applications suitable for thermoplastics. For requiring flexibility, composed elastomers, polysiloxanes, offer an alternative PVT scintillators. Polysiloxane inherently flexible have a...