Past events
Full listing
The Fermilab seminars are listed at: https://ad.fnal.gov/ADSeminars/
Speaker: Michael Wallbank, University of Cincinnati
Title:Optimizing the MCenter Beamline for the NOvA Test Beam Experiment
Zoom: Provided in weekly newsletter
Abstract:
NOvA is a long-baseline neutrino oscillation experiment designed to study a wide range of outstanding critical questions in neutrino physics. The experiment uses the NuMI neutrino beam and comprises two functionally-identical detectors, placed 1 km and 810 km from the beam source at Fermilab and Ash River, Minnesota, respectively. The NOvA Test Beam experiment uses a scaled-down NOvA detector to analyze well-understood charged particles to improve our understanding of the detector response and data analysis techniques.
A new tertiary beamline deployed at Fermilab can select and identify electrons, muons, pions, kaons and protons with energies from 0.3 to 2 GeV. Using these data, the Test Beam program will provide NOvA with a better understanding of the largest systematic uncertainties impacting NOvA’s analyses, including the detector modeling and simulation, calibration, and hadronic and electromagnetic energy resolution. The NOvA Test Beam experiment is located at the Fermilab Test Beam Facility on the MCenter beamline.
I will overview the program and discuss its current status and plans, including showing preliminary results from data collected between 2019 and 2021. I will also discuss the work done in improving understanding of and optimizing the MCenter beam for NOvA’s use.
The Fermilab seminars are listed at: https://ad.fnal.gov/ADSeminars/
Speaker: Nilanjan Banerjee
Title: Exploring high-intensity and high-quality proton beams at IOTA
Zoom: Provided in weekly newsletter
Abstract:
Three key challenges in accelerator physics critical to the development of future colliders and radiation sources are increasing the beam intensity, phase space density and superior control of the particle distribution. For instance, medium-energy bright electron beams may be used to drive intense light sources.
I discuss my past work at the Cornell BNL ERL Test Accelerator (CBETA), which aims to generate multi-megawatt electron beams through energy recovery. On the other hand, intense proton beams are used in particle colliders, to drive spallation targets, etc. The beam current in these machines is limited by beam loss triggered by space-charge effects and collective instabilities. I describe my current research exploring beam dynamics in the large incoherent tune shift regime, using electron cooling of low energy proton beams.
Finally, I propose to extend my current work at the Integrable Optics Test Accelerator (IOTA) in Fermilab to study the interplay of space-charge with beam cooling, non-linear optics, and collective instabilities through the novel use of diagnostics, numerical models, and data-driven techniques.