10–15 Aug 2025
SAFE Credit Union Convention Center
America/Los_Angeles timezone

Calculating beam extinction in a pulsed proton beam using FPGA-based peak detection

MOP037
11 Aug 2025, 16:00
2h
Ballroom A (SAFE Credit Union Convention Center)

Ballroom A

SAFE Credit Union Convention Center

Poster Presentation MC6 - Beam Instrumentation, Controls, AI/ML, and Operational Aspects Monday Poster Session

Speaker

Ryan Hensley (University of California, Davis)

Description

The Mu2e experiment at Fermilab imposes stringent requirements on the elimination of out-of-time beam in its pulsed proton beam, a requirement known as “extinction”. Utilizing a new μTCA-based FPGA data acquisition system, we recorded live particle data from scattered particles incident on an array of quartz Cherenkov radiators and photomultiplier tubes to measure the extinction in the inter-pulse gaps in the pulsed proton beam. Minuscule errors in the derived signal period can make a measurement of the extinction impossible, so after taking a Fourier transform, further optimizations on the period were done based on the assumption that the signal period is stable over the full time of the beam spill while it is being resonantly extracted. After these optimizations, the beam extinction was shown to be on the level of $10^3$.

Funding Agency

Department of Energy grant DE-SC0009999

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Author

Ryan Hensley (University of California, Davis)

Co-authors

Andrei Gaponenko (Fermi National Accelerator Laboratory) Eric Prebys (University of California, Davis)

Presentation materials

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