Difference between revisions of "CPP-NPP Experimental Controls"
From GlueXWiki
(→Power HV/LV) |
(→Power HV/LV) |
||
| Line 4: | Line 4: | ||
* HV for muon chambers: 6 HV channels for the 6 wire chambers (+1765V nominal) | * HV for muon chambers: 6 HV channels for the 6 wire chambers (+1765V nominal) | ||
** Use CAEN HV SY4527 Chassis, A1550P (positive) voltage with a converter box for 1 Radiall multi-pin -> 6 SHV connectors | ** Use CAEN HV SY4527 Chassis, A1550P (positive) voltage with a converter box for 1 Radiall multi-pin -> 6 SHV connectors | ||
| + | ** Location is D2-8-MID | ||
* LV for muon chambers: 12 times +5V and 12 times -5V (nominal current 1 mA per side per +/- 5V -> 4 A/ MWPC). | * LV for muon chambers: 12 times +5V and 12 times -5V (nominal current 1 mA per side per +/- 5V -> 4 A/ MWPC). | ||
** Require 1 MPV8008L module/2 MWPC -> 3 MPV8008L modules total. | ** Require 1 MPV8008L module/2 MWPC -> 3 MPV8008L modules total. | ||
| Line 9: | Line 10: | ||
* HV for 4 scintillator paddles: 8 HV channels for PMTs (-1800V nominal) | * HV for 4 scintillator paddles: 8 HV channels for PMTs (-1800V nominal) | ||
** Use CAEN HV SY4527 Chassis and 8 SHV connectors to A1535N (negative) voltage. | ** Use CAEN HV SY4527 Chassis and 8 SHV connectors to A1535N (negative) voltage. | ||
| + | ** Location is D2-8-MID | ||
== Chamber Gas == | == Chamber Gas == | ||
Revision as of 17:24, 9 November 2021
CPP requirements
Power HV/LV
- HV for muon chambers: 6 HV channels for the 6 wire chambers (+1765V nominal)
- Use CAEN HV SY4527 Chassis, A1550P (positive) voltage with a converter box for 1 Radiall multi-pin -> 6 SHV connectors
- Location is D2-8-MID
- LV for muon chambers: 12 times +5V and 12 times -5V (nominal current 1 mA per side per +/- 5V -> 4 A/ MWPC).
- Require 1 MPV8008L module/2 MWPC -> 3 MPV8008L modules total.
- Location of LV is D2-5-MID
- HV for 4 scintillator paddles: 8 HV channels for PMTs (-1800V nominal)
- Use CAEN HV SY4527 Chassis and 8 SHV connectors to A1535N (negative) voltage.
- Location is D2-8-MID
Chamber Gas
- Ar/CO2 (90%/10%) premixed in bottles
- gas line from gas shed to downstream platform
- gas manifold on downstream platform
- gas flow control though manual rota-meter (flow meter): nominal flow 300 sccm
- gas flow exhaust protected with oil bubblers
Chamber cooling
- under discussion, potentially with dry nitrogen
- no sensory foreseen, neither for flow nor for temperature.
DAQ readout
- CDC VXS crate \#1 is used with all fADC125s, moved to downstream platform
- needs new ROC (never used before in Gluex == new/unknown to GlueX mac/ip address)
- needs 2 Ethernet connections one for the fan-tray (slow control network) one for the ROC (DAQ network)
- needs 1 fiber optics connection to TI
- One fADC250 for scintillator digitization. Added to TOF crate?
Software
- GUI for HV/LV control, values to EPICS data base, for muon chamber and scintillators
- low level monitoring histograms, scaler display, for muon chamber and scintillators
