Beam
IRRAD Beam parameters
momentum: 24 GeV/c
Beam dimensions
standard size: ~12x12 mm2 (FWHM)
spot size from ~6x6 mm2 to ~20x20 mm2 (FWHM)
Beam intensity
protons are delivered in spills of ~5×1011 p
number of spills/frequency depends on CPS
Typical CPS : 30-37s
Typical figures: 3 spills per CPS, standard size
~0.7-1 x 1014 p cm-2 h-1 (on 5x5 mm2 sample)
~1.6-2.4 x 1015 p cm-2 d-1
~0.8-1.2 x 1016 p cm-2 5days-1
On 10x10 mm2 sample: figures reduced by ~30%
More information
© L. Gatignon, preliminary calculations (EDMS 1270807) Here dimensions are mm (RMS)
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:
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