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D. Dąbrowski, M. Peryt, K. Rosłon
Gas system for MPD Time-of-Flight detector
3-7 November 2015 NICA DaysD. Dąbrowski
Tracking: TPC, IT, ECT
T0, Triggering: FFD
Centrality, Event plane: ZDC
Particle ID: TOF, ECAL, TPCFFD
MultiPurpose Detector (MPD)
3-7 November 2015 NICA DaysD. Dąbrowski
Time-Of-Flight (TOF) detector
MPD TOF TDR 2015
MPD TOF TDR 2015
MPD TOF TDR 2015
3-7 November 2015 NICA DaysD. Dąbrowski
4
Particle IDentification (PID):
How does it work ?
MPD TOF TDR 2015
0.5<p<1 GeV/c
3-7 November 2015 NICA DaysD. Dąbrowski
5
Gas mixture requirements:
- Low threshold of avalanches
- Fast (high electrons drift velocity)
- No secondary effects, like photon feedback
- Cheap, Eco-friendly, safe, not ageing 3-7 November 2015 NICA Days
D. Dąbrowski
6
Gas Mixture
90% C2H2F4 + 5% i-C4H10 + 5% SF6
3-7 November 2015 NICA DaysD. Dąbrowski
7
Purity
O2 content: < 1000 ppm
H2O content: < 100 ppm
Two effects: - modification of transport parameters- electron loss by capture due to
electro-negative pollutants
3-7 November 2015 NICA DaysD. Dąbrowski
8
Gas system
3-7 November 2015 NICA DaysD. Dąbrowski
3-7 November 2015 NICA DaysD. Dąbrowski
Gas supply system
Mixer
3-7 November 2015 NICA DaysD. Dąbrowski
Purification
3-7 November 2015 NICA DaysD. Dąbrowski
Control system
3-7 November 2015 NICA DaysD. Dąbrowski
3-7 November 2015 NICA DaysD. Dąbrowski
Thank you for your attention !