Cryo Capture Cavity II Progress

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Cryo Capture Cavity II Progress

• Mike McGee
• April 6, 2005

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DESY will Provide

• 1.3 GHz cavity

• Helium vessel

• Magnet shielding (short)

• 2 VAT valves

• Input coupler assembly

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Status at Fermilab

• Finalizing US AND DS warm-to-cold transition and
  VAT valve to cavity spool design

• 316 L bellows specified and ordered (to arrive
  4/24)

• 316 LN material and tube ready to order

• Designing VAT valve supports, shipping/installatio
  n fixture (to be made of 316 L)

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US warm-to-cold transition
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DS warm-to-cold transition
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Fermilab will Provide

• To be send to DESY
• Cleaned US and DS warm-to-cold transitions
  (w/isolation flanges on ends and slight positive
  Ar pressure)

• Cleaned spool between cavity and VAT valve (also
  capped on ends)

• Cleaned helium vessel support clamps

• Cleaned VAT valve supports

• Shipping/installation fixture

• Drawing and procedure for assembly with fixture
  to be shipped

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Fermilab will Provide

• Currently at Fermilab
• Vacuum vessel and instrumentation
• 80 K shielding
• 5 K manifold
• Tuner
• 2 Spare VAT valves

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Process

• Send to DESY (May 2005)

• Cleaned US and DS warm-to-cold transitions and
  spool

• Under argon positive pressure

valve w/filter
blank flange
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Process cont

• 2 helium vessel support clamps

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Process cont

• VAT valve supports

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Process cont

• Shipping/installation fixture with temporary
  supports for bellows with crate

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Process cont

• Work at DESY (May-June 2005)

• Clean US and DS warm-to-cold transitions

• Assemble

• Cavity and helium vessel

• Spool between VAT valve and cavity

• VAT valves with supports

• Warm-to-cold transition

• Magnet shielding

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Process cont

• Send to Fermilab (July 2005)

• Assembled cavity with VAT valves, shielding,
  spool and transitions

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Process cont

• Work at Fermilab (July-August 2005)

• Pressure test helium vessel

• Modify helium return

• Install cavity assembly into vacuum vessel

• Make up cryogenic connections

• Test fit feedcan and leak check circuits

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Process cont

• Install cavity assembly into vacuum vessel

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Layout
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Layout
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Process cont

• Make up cryogenic connections

• Test fit feedcan and leak check circuits

• Commission Cryo Capture Cavity II

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Questions and Requests
Need DESY cleaning procedure
Need to confirm critical measurements
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Schedule