Simulation of the LHC beam collimation -------------------------------------------- Four points along the ring were considered: BC - crystal SCOL – secondary collimator TCOL – tertiary collimator RF – accelerating system voltage • • • • BC SCOL TCOL RF Four linear 6-D transfer matrices M(6,6) were used to transport particles between BC → SCOL SCOL → TCOL TCOL → RF RF → BC Particle coordinates – (x, x′, y, y′, l, δ)
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Simulation of the LHC beam collimation --------------------------------------------
Simulation of the LHC beam collimation --------------------------------------------. RF. •. Four points along the ring were considered: BC - crystal SCOL – secondary collimator TCOL – tertiary collimator RF – accelerating system voltage. •. •. •. BC. TCOL. SCOL. - PowerPoint PPT Presentation
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Simulation of the LHC beam collimation --------------------------------------------
Four points along the ring were considered:
BC - crystal SCOL – secondary collimatorTCOL – tertiary collimatorRF – accelerating system voltage•
••
•
BC
SCOL
TCOL
RF
Four linear 6-D transfer matrices M(6,6) were used to transport particles between
BC → SCOLSCOL → TCOL
TCOL → RFRF → BC
Particle coordinates – (x, x′, y, y′, l, δ)
Simulation of the LHC beam collimation (horizontal) --------------------------------------------
BC positions: TCP.A6L7.B1, s= 19795.1844 xbc=6σx=1.557 mm (7 TeV/c) → 5.949 mm (0.45 TeV/c)
SCOL positions: TCSG.6R7.B1, s=20140.5234, xscol=7σx=2.88 mm (7 TeV/c) → 10.01 mm (0.45 TeV/c)
TCOL position: TCLA.B6R7.B1, s=20178.4634
RF position: in the middle of the cavities, s=9996.79with lattice parameters interpolated
with voltage summed
LHC beam emittance ε=0.5×10-9 m·rad for 7 TeV/cε=7.3×10-9 m·rad for 0.45 TeV/c