K. McMichael
A5040245001- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Particle physics theoretical and experimental studies
- Radioactivity and Radon Measurements
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Radioactive contamination and transfer
- Astrophysics and Cosmic Phenomena
- Planetary Science and Exploration
- Astro and Planetary Science
- Isotope Analysis in Ecology
Rensselaer Polytechnic Institute
2020-2025
Carnegie Mellon University
2024
Lawrence Livermore National Laboratory
2023
Abstract The nEXO neutrinoless double beta (0 νββ ) decay experiment is designed to use a time projection chamber and 5000 kg of isotopically enriched liquid xenon search for the in 136 Xe. Progress detector design, paired with higher fidelity its simulation an advanced data analysis, based on one used final results EXO-200, produce sensitivity prediction that exceeds half-life 10 28 years. Specifically, improvements have been made understanding production scintillation photons charge as...
Neutrinoless double beta decay is one of the most sensitive probes for new physics beyond Standard Model particle physics. One isotopes under investigation <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mmultiscripts><a:mi>Xe</a:mi><a:mprescripts/><a:none/><a:mn>136</a:mn></a:mmultiscripts></a:math>, which would into <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"><b:mmultiscripts><b:mi>Ba</b:mi><b:mprescripts/><b:none/><b:mn>136</b:mn></b:mmultiscripts></b:math>. Detecting...
Abstract We demonstrate the capabilities of radiative transfer theory with packed media correction (RTT-PM) in analyzing spectral data planetary surfaces by modeling to first order shape and band depths spectra icy satellites Saturn acquired Cassini Visual Infrared Mapping Spectrometer (VIMS). The RTT-PM is an efficient physically strict numerical method that employs a packing density correction, static structure factor, single-scattering properties particles simulate light scattering...
Abstract The projected sensitivity of the effective electron neutrino-mass measurement with KATRIN experiment is below 0.3 eV (90 % CL) after 5 years data acquisition. affected by increased rate background electrons from KATRIN’s main spectrometer. A special shifted-analysing-plane (SAP) configuration was developed to reduce this a factor two. complex layout electromagnetic fields in SAP requires robust method estimating these fields. We present paper dedicated calibration using conversion...
Abstract We study a possible calibration technique for the nEXO experiment using 127 Xe electron capture source. is next-generation search neutrinoless double beta decay (0 νββ ) that will use 5-tonne, monolithic liquid xenon time projection chamber (TPC). The xenon, used both as source and detection medium, be enriched to 90% in 136 Xe. To optimize event reconstruction energy resolution, calibrations are needed map position- time-dependent detector response. 36.3 day half-life of its small...