Secondary Beam Lines of the CERN North Area

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Secondary Beam Lines of the CERN North Area

• Rebecca Lamb
• Under the guidance of
• Adrian Fabich and Ilias Efthymiopoulos

Outline The Accelerator complex The H8 beam
line Parasitic and Dedicated Muons mode Modeling
of H2 VLE beam Effect of VLE beam Muon
offset Analysis of 2004 VLE data
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My tasks

• Theory of secondary beam lines
• Simulation
• H2 and H8 beam lines with HALO
• Graphical Presentation
• PAW
• Beam Tuning
• Setting up the beam
• Measuring beam properties
• Comparison of simulation with data
• Interact with Users
• Compare ATLAS muon data with simulation

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The H2 and H8 beam lines
North Area
Accelerator Complex
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H2 beam line
VLE setup
Prim. p selection
CMS
from SPS
wobbling
H4
T2
Target T22
Converter
momentum/ generation
1-9 GeV/c tertiary hadrons/electrons
400 GeV/c
10 GeV/c lt p lt 400 GeV/c secondary
hadrons/electrons
primary protons
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Parasitic vs. dedicated muons mode
VLE
B3/B4
B6
C6
Parasitic
Absorber at C6
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Simulation of VLE beam setup at 9GeV/c
Y
X
Spec 1
Spec 3
Experiment
Spec 4
p
X
Y
Spec3
Spec4
Spec1
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Muon offset at experiment due to VLEH8 beam
line 80GeV/c
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Analysis of VLE beam
1GeV/c
2GeV/c
3GeV/c
Slope1.05
p
p
p
?p/p 4.5
p
p
p
4GeV/c
7GeV/c
6GeV/c
p
p
9GeV/c
8GeV/c
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Questions?