KLF beamline meeting - November 21, 2024

Agenda

• Announcements

• FLUKA simulations with 20% CPS radiator (Pavel)

• GEANT4 simulations (Richard)

• W-plug temperature estimates for 20% radiator (Hovanes)

• Any other business

Minutes

Present: Vitaly, Eugene, Moskov, Hovanes, Pavel, Alex, Beni, Lubomir, Marshall, Richard, Sashi, Edy, Mikhail

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• Pavel simulated KLF beam using 20% CPS radiator. He uses 6cm OD beam pipe after KPT, but he used 4cm OD beampipe at the cryo-target.

• The beam spot at the KPT is wider, still fits in 6cm reasonably well. K-long rate at the cryo-target is consistent with factor of two increase. Statistics is still low due to CPU unavailability last week.

• Eugene asked about radiation backsplash in front of CPS. Pavel says that neutron backsplash increased. Pavel expects that the temperature in the CPS will decrease. The magnet coil dose rate increased by about factor of four.

• Pavel is already running higher statistics and also the low thresholds simulations.