D. Attié, P. Colas, M. Dixit, Yun-Ha Shin (Carleton and Saclay)
D. Attié, P. Colas, E. Delagnes, M. Dixit, A. Giganon, J-P Martin,
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LCTPC WP Phone Meeting #71 – 26.11.2008 Micromegas module 1 D. Attié, P. Colas, E. Delagnes, M. Dixit, A. Giganon, J-P Martin, M. Riallot, F. Senée, Y-H Shin, S. Turnbull, R. Yonamine (Carleton, KEK, Saclay) LCTPC WP Phone Meeting #71, 26 November 2008 Status of Micromegas Status of Micromegas module(s) data taking module(s) data taking • Large Prototype TPC • Cosmic ray data • First beam events • Schedule
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Status of Micromegas module(s) data taking. D. Attié, P. Colas, E. Delagnes, M. Dixit, A. Giganon, J-P Martin, M. Riallot, F. Senée, Y-H Shin, S. Turnbull, R. Yonamine (Carleton, KEK, Saclay) LCTPC WP Phone Meeting #71, 26 November 2008. Large Prototype TPC Cosmic ray data - PowerPoint PPT Presentation
Transcript of D. Attié, P. Colas, E. Delagnes, M. Dixit, A. Giganon, J-P Martin,
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 1
D. Attié, P. Colas, E. Delagnes, M. Dixit, A. Giganon, J-P Martin,M. Riallot, F. Senée, Y-H Shin, S. Turnbull, R. Yonamine
(Carleton, KEK, Saclay)
LCTPC WP Phone Meeting #71, 26 November 2008
Status of Micromegas Status of Micromegas module(s) data takingmodule(s) data taking
• Large Prototype TPC
• Cosmic ray data
• First beam events
• Schedule
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 2
Large Prototype TPC
Optical fiber
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 3
Beam trigger
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 4
Cosmic ray data
• Vmesh = - 360 V = Vanode
• Vcathode ~ - 12 740 V, Icathode ~ 61 μA
• Gas monitoring (flow, overpressure, 02, H20)
• 02~ 40 ppm, H20 ~ 20 ppm
• Rate ~ 0.7 Hz using the 3 triggers
• Different shaping ( 100 ns < peaking time < 2 μs)
• ~ 400 000 events
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 5
Last night cosmic ray data
• Peaking time : 1 μs• Time bin : 40 ns
• Gas mixture : Ar/CF4/Iso (95:3:2)
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 6
Last night cosmic ray data
Peaking time:
1 μs
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 7
Last night cosmic ray data
Peaking time:
200 ns
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 8
First beam events
• Peaking time : 1 μs Ee- = 5 GeV
• Time bin : 40 ns
• Gas mixture : Ar/CF4/Iso (95:3:2)
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 9
First beam events
0
50
100
150
200
250
300
0 1 2 3 4 5 6
p (GeV)
Rat
e (H
z)
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 10
TPC position for beam test
~7.7°
LCTPC WP Phone Meeting #71 – 26.11.2008
Micromegas module 11
Schedule
• Beam available at 5:30 pm (night shift?)
• Tomorrow (afternoon), replace the standard Micromegas module to resistive Micromegas Module (~ 3h)
• As soon as possible, mount the safety valve and start to cool the PCMAG
• First beam tests with the magnet at B = 0T and then B = 1T should be possible beginning of next week
• Software analysis will continue with the help of Yun Ha Shin (Carleton)
