HPTF

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HPTF CRYOGENICS
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HPTF CRYOGENICS

• Design scope
• Heat load and capacity requirements
• Cryogenics at Meson Detector Building (MDB)
• Cryogenics at New Muon Lab (NML)
• Schedule
• Conclusions

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DESIGN SCOPE

• Source of refrigeration
• Distribution system
• Cryogenics controls

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HEAT LOAD CAPACITY
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DESIGN SOLUTIONS
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CRYOGENICS AT MDB

• Meson Cryogenic Test Facility (CTF) cryogenic
  plant ?
• Meson tunnel transfer line ?
• Vacuum pump ?
• Helium recovery and purification system ?

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CRYOGENICS AT NML

• Temporary Cryogenic System
• Option 1 - Dewar Based System ?
• Option 2 - TeV Satellite ?
• New Cryogenic System
• Option 1 - Modified SSC plant
• Option 2 - New Hybrid Type Plant

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SCHEDULE

• MDB
• Cap Cav II 4K Operation - October '05
• Cap Cav II 2K Operation - December '05
• 8 cavity 1.3 GHz ILC CM - Spring '07
• PD Test Area - Fall '07
• NML
• Decision on Phase I option - June '05
• Decision on Phase II option - August '05

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CONCLUSIONS

• Phased approach is taken to construct HPTF
  cryogenic systems
• Test area cryogenic distribution systems are user
  specific
• New cryogenic plant is the critical path

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DEWARS BASED SYSTEM
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TeV SATELLITE
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CTF
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CTF UPGRADE

• Refurbish gas storage
• Move oil removal vessels outside CTF
• Add PS-1 Mycom compressor and its controls
• Upgrade refrigerator controls
• Modify compressor piping
• Install tunnel side bayonet can w/ LN2 subcooler

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TUNNEL TRANSFER LINE
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TUNNEL TRANSFER LINE

• Isolate unused header and transfer line (TL)
  branches
• Fix existing expansion box _at_ 1000' West
• Transition to Pbar/Muon style TL
• Reuse muon expansion box
• Install 350' TL and headers
• Refurbish existing instrumentation
• New bayonet can with He and N2 subcoolers

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TUNNEL TRANSFER LINE
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TUNNEL TRANSFER LINE
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VACUUM PUMP

• Manufactured by Tuthill Kinney
• Roots Blower - Model KMBD 10000
• Liquid Ring - Model KLRC 2100
• Skid was assembled by JLab
• Capacity is 10 g/sec at 12 torr
• Being modified at PAB for He service

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HELIUM RECOVERY

• PS-1 compressor is used to recover helium from
  the MDB
• Full flow inline purifier
• Connections to mobile purifier