J. Howell

ORCID: 0000-0002-6436-5821
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About
Contact & Profiles
Research Areas
  • Particle Detector Development and Performance
  • Particle physics theoretical and experimental studies
  • Dark Matter and Cosmic Phenomena
  • Neutrino Physics Research
  • Radiation Detection and Scintillator Technologies
  • Astrophysics and Cosmic Phenomena
  • Particle Accelerators and Free-Electron Lasers
  • High-Energy Particle Collisions Research
  • Distributed and Parallel Computing Systems
  • Microfluidic and Bio-sensing Technologies
  • Trypanosoma species research and implications
  • Research on Leishmaniasis Studies
  • Superconducting Materials and Applications
  • CCD and CMOS Imaging Sensors
  • Particle accelerators and beam dynamics
  • Radiation Therapy and Dosimetry
  • Medical Imaging Techniques and Applications
  • 3D Printing in Biomedical Research
  • Cellular Mechanics and Interactions
  • Radiation Effects in Electronics
  • Scientific Computing and Data Management
  • Electron and X-Ray Spectroscopy Techniques
  • Computational Physics and Python Applications
  • Astronomical Observations and Instrumentation
  • Photonic and Optical Devices

University of Glasgow
2020-2024

University of Strathclyde
2024

University of Alabama
2023

University of California, Los Angeles
2023

Glasgow Life
2020

Fermi National Accelerator Laboratory
1995-2018

Austrian Academy of Sciences
2012

Institute of High Energy Physics
2012

Argonne National Laboratory
2002

Cleveland State University
1981

A Short-Baseline Neutrino (SBN) physics program of three LAr-TPC detectors located along the Booster Beam (BNB) at Fermilab is presented. This new SBN Program will deliver a rich and compelling opportunity, including ability to resolve class experimental anomalies in neutrino perform most sensitive search date for sterile neutrinos eV mass-scale through both appearance disappearance oscillation channels. Using data sets 6.6e20 protons on target (P.O.T.) LAr1-ND ICARUS T600 plus 13.2e20...

10.48550/arxiv.1503.01520 preprint EN other-oa arXiv (Cornell University) 2015-01-01

Event-based sensing offers unique advantages in terms of cost, sensitivity and compatibility with standard microscopes for high-throughput particle imaging microfluidic systems.

10.1039/d0lc00556h article EN cc-by Lab on a Chip 2020-01-01

The SVX vertex detector has been very successful in heavy flavor physics at CDF, playing a significant role both top and bottom analyses. SVX′, radiation hard version of SVX, is presently taking data. In 1998 the Main Injector upgrade to accelerator complex Fermilab will provide increase luminosity, require new detector, II. specifications design considerations for this are discussed.

10.1016/0168-9002(94)01230-x article EN cc-by-nc-nd Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 1995-06-01

Precision tracking and vertex reconstruction play a crucial role in heavy flavor physics at CDF, reconstructing the charm beauty decay vertices top events. A significant upgrade to CDF detector, including new silicon tracker, will support an extensive program with high luminosity provided by Main Injector accelerator upgrade. The specifications design considerations for this tracker/vertex detector are discussed.

10.1016/s0168-9002(96)00688-2 article EN cc-by-nc-nd Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 1996-12-01

Abstract Inertial microfluidics has demonstrated tremendous potential to impact biological - and notably medical fields, by offering a highly versatile, portable cost-effective approach cell focusing sorting. While the range of applications inertial devices spans diagnostics, bioprocessing or water engineering mention few, translation is still impeded lack clear understanding interactions in such devices. This often leads bespoke designs that take years development characterisation for one...

10.1101/2024.05.16.594321 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2024-05-19

Promastigote Leishmania mexicana have a complex cell division cycle characterised by the ordered replication of several single-copy organelles, prolonged S phase and rapid G2 cytokinesis phases, accompanied stage-associated morphological changes. Here we exploit these changes to develop high-throughput semi-automated imaging flow cytometry (IFC) pipeline analyse in live L. mexicana. Firstly, demonstrate that, unlike other DNA stains, Vybrant™ DyeCycle™ Orange (DCO) is non-toxic enables...

10.1371/journal.pone.0311367 article EN cc-by PLoS ONE 2024-10-03

Abstract Promastigote Leishmania mexicana have a complex cell division cycle characterised by the ordered replication of several single-copy organelles, prolonged S phase and rapid G2 cytokinesis phases, accompanied stage-associated morphological changes. Here we exploit these changes to develop high-throughput semi-automated imaging flow cytometry (IFC) pipeline analyse L. in live cells. Firstly, demonstrate that, unlike other DNA stains, Vybrant™ DyeCycle™ Orange (DCO) is non-toxic enables...

10.1101/2023.07.24.550259 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2023-07-25

A LTHOUGH the American Institute of Electrical Engineers often is referred to by some its most ardent supporters as an ''organi zation young men/' and correctly so on basis membership analysis, here a list members that have been Institute's rolls for total 35 50 years each, with average tenure 317 them amounting more than 40 years!Although bulk burden leadership development may fall upon younger members, wealth experience represented in professional careers these other long-time one greatest assets.

10.1109/ee.1934.6541641 article EN Electrical Engineering 1934-05-01

Low energy, low rate experiments, such as searches for neutrinoless double beta decay and dark matter, require unprecedentedly levels of background in order to deliver their full science potential. $^{210}$Po driven, neutron induced background, caused by nuclear $(\alpha, n)$-reactions on low-Z materials, direct contributions the $\alpha$-radiation desorption $^{210}$Pb progeny $^{210}$Bi from surfaces into detector medium are particular concern. These backgrounds depend details components'...

10.1103/physrevc.107.065802 article EN Physical review. C 2023-06-05

The pulsed dipole magnet used at the antiproton source target station to bend path of 8-GeV secondary antiprotons from residual primary proton beam has had a history failure due intensely radioactive environment in which it must operate. A new radiation-hardened been designed replace this magnet. unique water-cooled single-turn utilizes radiation-resistant materials while exhibiting uniform field characteristics 1.573 T over 1 m.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML"...

10.1109/pac.1991.164966 article EN 2002-12-09

10.1016/s0168-9002(97)01264-3 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 1998-05-01
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