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Published byAutumn Brady Modified over 11 years ago
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SiTPC status in Saclay David Attié SiTPC Phone Meeting,
P. Colas; X. Coppolani; E. Delagnes; J. Derre; E. Ferrer Ribas; Y. Giomataris; A. Giganon; M. Riallot SiTPC Phone Meeting, NIKHEF – 20 February 2008 SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
News Second Micro-TPC available soon TimePix works with USB1.1 readout (but Clock < 7 MHz) First measurements in Helium 55Fe source 90Sr source Preliminary data analysis The TimePix panel with a matrix of 2x4 chips have been designed and will be delivered next Tuesday official release planned for March 17th EUDET SC meeting The Micromegas panel designed at Saclay fits to the endplate SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
Micro-TPC prototype A second detector will be available next week, for the community? But, we need an extra readout system (MUROS or USB1.2) SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
Melted bonding wires The first one appears after an all-night standing sparking state The second, probably during a powering down After reparation, the first chip (mesh tested in air up to 650 V) did not recover and the second works fine SiTPC Phone Meeting, NIKHEF –
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Micro-TPC TimePix/Micromegas : mode Time
Puce Timepix + SiProt 20 μm + Micromegas 55Fe Ar/Iso (95:5) Mode Time z ~ 40 mm Vmesh = -340 V SiTPC Phone Meeting, NIKHEF –
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Micro-TPC TimePix/Micromegas : mode Time
Puce Timepix + SiProt 20 μm + Micromegas 90Sr Ar/Iso (95:5) Mode Time z ~ 40 mm Vmesh = -340 V SiTPC Phone Meeting, NIKHEF –
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Micro-TPC TimePix/Micromegas : mode Time
Puce Timepix + SiProt 20 μm + Micromegas 90Sr Ar He Mode Time z ~ 40 mm Vmesh = -340 V SiTPC Phone Meeting, NIKHEF –
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Micro-TPC TimePix/Micromegas : mode Time
Puce Timepix + SiProt 20 μm + Micromegas 90Sr He/Iso (80:20) Mode Time z ~ 40 mm Vmesh = -430 V SiTPC Phone Meeting, NIKHEF –
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Micro-TPC TimePix/Micromegas : mode Time
Puce Timepix + SiProt 20 μm + Micromegas 55Fe He/Iso (80:20) Mode Time z ~ 60 mm Vmesh = -430 V SiTPC Phone Meeting, NIKHEF –
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Drift velocity measurement using TimePix
sx sy st Fitted with a gaussian x y t Fitted with ft Ar/Iso (95:5) Edrift~500 V/cm Example: Histo x σx Histo y σy Histo time σt Example: σr = cm σt = us Vdrift = 2.98 cm/μs Simulation GARFIELD : Edrift (500 V/cm) ~ 3.2 cm/μs SiTPC Phone Meeting, NIKHEF –
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Drift velocity measurement using TimePix
Argon/Isobutane (95:5) Clock = 40 Mhz Clock = 67 Mhz SiTPC Phone Meeting, NIKHEF –
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Pixel cluster multiplicities
Multiplicity = 1 Multiplicity = 3 Multiplicity = 5 Multiplicity = 2 Multiplicity = 4 Multiplicity = 6 SiTPC Phone Meeting, NIKHEF –
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Histogram of the pixel cluster multiplicities
Example: Mean ~ 2.5 Pixel cluster multiplicity SiTPC Phone Meeting, NIKHEF –
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Histogram of all events for 55Fe
SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
TimePix panel SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
TimePix panel Bottom side SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
TimePix panel Top side SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
TimePix panel Bottom side SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
TimePix panel Top side SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
TimePix panel Top side SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
TimePix panel Bottom side SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
Micromegas panel Saclay Cornell SiTPC Phone Meeting, NIKHEF –
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SiTPC Phone Meeting, NIKHEF – 20.02.2008
Micromegas panel Saclay Cornell SiTPC Phone Meeting, NIKHEF –
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