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Hall B Gas System Proposal
Physics Detector Support Group
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Detectors Requiring A Gas System
Drift Chambers LTCC HTCC MicroMegas RICH 9/20/2018
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Using Current Equipment
Analog Out Analog In 647B OBSOLETE $31,416 Liability 1359C OBSOLETE Analog RS232 Ethernet Ethernet EPICS
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Using New Equipment Analog Out Analog In GE50 Ethernet Switch Ethernet
EPICS
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Pro’s and Con’s of Using Existing Equipment
Total initial system cost ~ $25,000 cheaper Increased downtime projected MKS 647B Mass Flow Programmer No longer supported by manufacturer cannot acquire spares Not Required with new flow controllers ($31,416) RS232 Serial communication MKS 1359C Mass Flow Control Valve Repair no longer supported by manufacturer Calibration ~ $7,000 for current supply
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Pro’s and Con’s of Using New Equipment
Total initial system cost ~ $25,000 more High reliability projected MKS 647B Mass Flow Programmer Not required MKS GE50 Mass Flow Control Valve Controlled with LabVIEW directly Each controller has it own web server and individual IP address for configuration Communicates via Ethernet
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Gas System Controls Cost
New Flow Controller Equipment without 647C Programmers Item Location Detector Description Part Number Qty Cost 1 Gas Shed ALL NI cRIO-9030 $6,824.48 3 Drift Chambers Mass Flow Control Valve (MKS) GE50 7 $9,396.45 4 MicroMegas 5 $6,711.75 LTCC 2 $2,684.70 Gas Shed Subtotal $25,617.38 6 Hall B All 8 Drift Chamber Process Control Valve ? $500.00 9 10 $8,054.10 11 SVT $1,342.35 12 HTCC 13 14 RICH Hall B Subtotal $20,405.63 Total $46,023.01 Existing Flow Controller Equipment Mass Flow Control Valve (MKS) Calibration $4,200.00 $2,700.00 $20,548.96 Difference $25,474.05
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Gas Shed Drift Chambers RS232 MKS 647C Mass Flow Display Analog
MFC 1359C MFC 1359C MFC 1359C MFC 1359C MFC 1359C MFC 1359C MFC 1359C RS232 MKS 647C Mass Flow Display Analog MicroMegas NI cRio PAC MFC 1359C MFC 1359C MFC 1359C MFC 1359C MFC 1359C MKS 647B Mass Flow Display Analog RS232 LTCC MFC 1359C MFC 1359C Analog
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Gas Shed Drift Chambers RS232 MKS 647C Mass Flow Display Analog
MFC 1359C MFC 1359C MFC 1359C MFC 1359C MFC 1359C MFC 1359C MFC 1359C RS232 MKS 647C Mass Flow Display Analog MicroMegas NI cRio PAC MFC GE50 MFC GE50 MFC GE50 MFC GE50 MFC GE50 Ethernet Switch Ethernet Ethernet LTCC MFC GE50 MFC GE50 Ethernet
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Mixing new valves with old controllers
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