E. Angelico
A5002026978- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Particle Detector Development and Performance
- Photocathodes and Microchannel Plates
- Astrophysics and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Particle accelerators and beam dynamics
- solar cell performance optimization
- Medical Imaging Techniques and Applications
- Advanced Optical Sensing Technologies
- Superconducting Materials and Applications
- Ga2O3 and related materials
- Quantum, superfluid, helium dynamics
- Gyrotron and Vacuum Electronics Research
- CCD and CMOS Imaging Sensors
- Analog and Mixed-Signal Circuit Design
- Neural Networks and Reservoir Computing
- Spacecraft and Cryogenic Technologies
- Advancements in Semiconductor Devices and Circuit Design
- Particle Accelerators and Free-Electron Lasers
- Parallel Computing and Optimization Techniques
- Engineering Technology and Methodologies
- Analytical Chemistry and Sensors
Stanford University
2021-2025
University of Chicago
2016-2021
Fermi National Accelerator Laboratory
2016-2021
University of Illinois Chicago
2018
Incom (United States)
2017
This paper introduces the neutrinoless double-beta decay (the rarest nuclear weak process) and describes status of research for this transition, both from point view theoretical physics in terms present future experimental scenarios. Implications phenomenon on crucial aspects particle are briefly discussed. The calculations matrix elements case mass mechanisms reviewed, a range these quantities is proposed most appealing candidates. After introducing general concepts—such as choice best...
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...
Liquid xenon time projection chambers are promising detectors to search for neutrinoless double beta decay (0$\nu \beta \beta$), due their response uniformity, monolithic sensitive volume, scalability large target masses, and suitability extremely low background operations. The nEXO collaboration has designed a tonne-scale chamber that aims 0$\nu \beta$ of \ce{^{136}Xe} with projected half-life sensitivity $1.35\times 10^{28}$~yr. To reach this sensitivity, the design goal is $\leq$1\%...
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...
The search for neutrinoless double beta decay is the only practical way to test whether neutrinos are Majorana or Dirac particles. next generation of experiments aim probe effective neutrino mass down few 10 meV, as predicted by oscillation in case inverse hierarchy. According recent nuclear matrix calculations, rates per isotope varying within a factor when comparing them same theoretical model framework. sensitivity upcoming depend therefore primarily on available isotopes and experimental...
Silicon photomultipliers are regarded as a very promising technology for next-generation, cutting-edge detectors low-background experiments in particle physics. This work presents systematic reflectivity studies of Photomultipliers (SiPM) and other samples liquid xenon at vacuum ultraviolet (VUV) wavelengths. A dedicated setup the University Münster has been used that allows to acquire angle-resolved reflection measurements various immersed with 0.45° angular resolution. Four investigated...
We propose to use a higher-frequency rf bunch structure for the primary proton beam on target and precision timing select different energy flavor spectra from wide-band neutrino beam, based relative arrival times of neutrinos with respect structure. This ``stroboscopic'' approach is complementary techniques that angle axis. A timing-based allows selection varying same on-axis detector, applies equally both near far detectors in an oscillation experiment. Energy discrimination produced by...
We have designed and prototyped the process steps for batch production of large-area micro-channel-plate photomultipliers (MCP-PMT) using "air-transfer" assembly developed with single LAPPDTM modules. Results are presented addressing challenges designing a robust package that can transmit large numbers electrical signals pad or strip readout from inside vacuum tube hermetically sealing large-perimeter window-body interface. also synthesized photocathode in low-aspect-ratio volume shown...
Electron-neutrino charged-current interactions with xenon nuclei were modeled in the nEXO neutrinoless double-<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>β</a:mi></a:math> decay detector (<c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mo>∼</c:mo><c:mn>5</c:mn></c:math> metric ton, 90% <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"...
We have designed and tested a robust 20 x cm^2 thin metal film internal anode capacitively coupled to an external array of signal pads or micro-strips for use in fast microchannel plate photodetectors. The anode, this case 10nm-thick NiCr deposited on 96% pure Al_2O_3 3mm-thick ceramic connected HV ground, provides the return path electron cascade charge. multi-channel pickup consists printed-circuit card glass with pickups one side ground plane other. can be put close proximity bottom outer...
Two major challenges in time-of-flight positron emission tomography (TOF-PET) are low spatial resolution and high radioactive dose to the patient, both of which result from limitations detection technology rather than fundamental physics. A new type TOF-PET detector employing low-atomic number (low-Z) scintillation media large-area, high-resolution photodetectors record Compton scattering locations has been proposed as a promising alternative, but minimum technical requirements for such...
We propose PET scanners using low atomic number media that undergo a persistent local change of state along the paths Compton recoil electrons. Measurement individual scattering locations and angles, deposited energies, electron directions allows kinematical constraints 2-body process to perform statistical time-ordering scatterings, with high probability precisely identifying where gamma first interacted in detector. In these cases Line-of-Response is measured resolution, determined by...
LAPPD™ is a photon-detector technology based upon amplification of photoelectrons in large-area microchannel plates and fast waveform-sampling electronics. In the next-generation design, signals will be coupled capacitively through vacuum package, from thin-film metal anode inside enclosure to flexible readout configurations on an external printed-circuit card, improving signal bandwidth, eliminating all but one electric feedthrough. We report here tests this concept [1].