FLUKA simulations of tertiary halo in IR1 and IR5
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starting conditions in both planes produced with SixTrack simulations
- Machine conditions as in 2010 run: 3.5 TeV, beta*=3.5m, TCTs at 15 sigma
- Cut-off at 20 MeV or 20 GeV
- No biasing used
- FLUKA geometry by F. Cerutti, V. Boccone and A. Mereghetti, modified by R. Bruce
Data files with particles entering interface plane
With analytic magnetic field in the D1, 20 MeV cutoff
- IR5, right side, B2
- SixTrack conversion factor: 4.85938e-6 TCT hits / hit on primary collimator
- IR5, left side, B1
- SixTrack conversion factor: 4.61563e-5 TCT hits / hit on primary collimator
- IR1, left side, B1
- SixTrack conversion factor: 1.02813e-5 TCT hits / hit on primary collimator
- IR1, right side, B2
- SixTrack conversion factor: 2.25625e-5 TCT hits / hit on primary collimator
With a full field map in the D1, 20 MeV cutoff
- IR5, left side, B1
- Data file
- 2 395 200 primary events
- SixTrack conversion factor: 4.61563e-5 TCT hits / hit on primary collimator
- IR1, left side, B1
- Data file
- 2 383 200 primary events
- SixTrack conversion factor: 1.02813e-5 TCT hits / hit on primary collimator
- IR1, right side, B2
- Data file
- 2 344 800 primary events
- SixTrack conversion factor: 2.25625e-5 TCT hits / hit on primary collimator
With a full field map in the D1, 20 GeV cutoff
- IR1, left side, B1
- Data file
- 298 080 000 primary events
- SixTrack conversion factor: 1.02813e-5 TCT hits / hit on primary collimator
- IR1, right side, B2
- Data file
- 297 600 000 primary events
- SixTrack conversion factor: 2.25625e-5 TCT hits / hit on primary collimator
Data columns in files:
- FLUKA run number (between 1 and 3000)
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ID of primary particle (between 1 and 100 in each run)
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FLUKA particle type (an explanation of the numbers can be found here)
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kinetic energy (GeV)
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statistical weight (should be 1 for all particles)
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X (cm)
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Y
(cm)
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directional cosine w.r.t X-axis
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directional cosine w.r.t Y-axis
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time (s) since start of primary particle
- total
energy (GeV)
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X_start (cm) : starting position of primary particle
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Y_start (cm)
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Z_start (cm)
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t_start (s) : starting time of primary particle where t=0 is at the entrance of the TCTH
Plots
download histograms of particles entering interface plane
download histograms comparing particles at interface plane with and without the D1 field map for IR5 Left side
download histograms comparing IR1 beam-halo with 20 MeV and 20 GeV cutoffs