Cryo Update and Power Distribution

Alan BrossTracker Parallel – MICE CM

October 7, 2007

Cryo

Production cryostats 1 and 2 are complete They have been fully characterized However, the AFE backplanes still need to be installed And final AFE electrical/power test (see slide)

Cryostat #3 is nearing completion. Should be ready for first cooldown in about 2 weeks

Cassettes have been released from D0 Cryostat #4 still needs cassettes. We have tentative agreement in place with D0 for the

additional 2 cassettes needed for Cryostat #4 George Ginther asked for a document detailing how the

cassettes will be operated, environmental conditions, fault analysis and safety precautions, personnel training, etc.

The first draft is complete and has been reviewed by George. Some issues were identified (crane operation in MICE Hall for example) and are being addressed. The document is being updated

Cryo-Racks

The Wiener power supplies for the AFE boards have arrived and Bill Luebke and and John Fogelsong have developed a plan for power distribution. The cable runs and lengths for the power and LVDS cables have now been set

Assembly of the final rack(s) has begun LVDS Cables have been ordered (10m length) Components for power cabling (cables, fuse assemblies,

connectors) have been ordered. The plan is to fully test the racks (one for two

cryostats) at Fermilab to make sure that AFE operation is correct.

Power conversion will then have to occur when the equipment arrives in the UK

This is the critical path and will determine when the system can be shipped to RAL

AFEIIt Power Distribution

AFEIIt Power Distribution

Weiner Power Supply(+5.5, +5, 12, +3.3)V

Trunk Line

Fuse Panel

Cryo 2 DropCryo 1 Drop

Schedule

Goal: Test Cryo 1 and 2 electrically as full system at Fermilab

All AFEIIts, LVSBs, Low-voltage power and distribution cables

Crate and ship to RAL Have at RAL by November 5, 2007.