17–22 May 2026
C.I.D
Europe/Zurich timezone

Real Time Longitudinal Beam Measurements in the Crocker Nuclear Laboratory Isochronous Cyclotron

SUP6306
17 May 2026, 14:00
4h
C.I.D

C.I.D

Poster Presentation MC6.T03: Beam Diagnostics and Instrumentation Student poster session

Speaker

Logan Knudson (University of California, Davis)

Description

The UC Davis Crocker Nuclear Laboratory (CNL) operates a 76-inch isochronous cyclotron dating to the 1960s, with limited internal beam diagnostic instrumentation. Direct measurements of the Cyclotron beam are challenging due to the harsh environment, including high radiation, strong magnetic fields, RF interference, and spatial constraints. A novel beam probe has been developed for longitudinal bunch structure and phase measurements in a 15 mm square transverse profile with 16 independent pixels. The probe consists of a segmented fast plastic scintillator array coupled via fiber optics to external Silicon Photomultipliers (SiPMs), mounted on a radially translating probe. Bunch length and phase information are measured and analyzed in real time, with continuously updating visualizations available to operators and to downstream real-time analysis tools. Additionally, the collected data are archived for offline analysis, supporting the development of simulations for the CNL Cyclotron. The Fast Beam Probe opens the door to improved beam stability, more accurate modeling, and future integration with automated control systems at CNL.

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Author

Logan Knudson (University of California, Davis)

Co-authors

Eric Prebys (University of California, Davis) Mr Michael Backfish (University of California, Davis)

Presentation materials

There are no materials yet.