Beam
IRRAD Beam parameters
momentum: 24 GeV/c
Beam dimensions
spot size from ~6x6 mm2 to ~20x20 mm2 (FWHM)
spot in 2026 is ~11-12 mm (FWHM) on both directions. Refer to the BPM Page
Beam intensity
PS delivers ~7-7.5×1011 protons per spill
spill frequency depends on PS supercycle (CPS)
Typical CPS : 30-37s
Typical figures: 3 spills per CPS
~2.6 x 1016 POT
~1.0-1.4 x 1016 p cm-2 week-1
on 10x10 mm2 surface during run 2025
© L. Gatignon, preliminary calculations (EDMS 1270807) Here dimensions are mm (RMS)
Standard beam optics developed for the run 2026 (parallel along the facility):
Average time required to integrate a proton fluence of 1016 p/cm2 calculated based on data from irradiation run 2017:
Standard beam as seen on BPM1
Standard beam as seen on BPM2
Standard beam as seen on BPM3
Standard beam as seen on BPM4
Standard beam as seen on the BTV02 screen
Standard beam as seen on the T8 MWPC
Focused beam as seen on BPM1
Focused beam as seen on BPM2
Focused beam as seen on the T8 MWPC
Vertical and Horizontal profiles of Blown-Up Beam as compared with standard Spill recorded by BPM:
More:
