1. I Wilmut CCLRC1 End-cap Engineering 8 September 2004 Ian Wilmut, RAL

2. I Wilmut CCLRC2 Where we are l Disk 9 is finished and dispatched to Liverpool (April 04) l Disk 8 is finished and dispatched to Liverpool (Aug 04) l Disk 7 is almost finished, and will be dispatched this month l Disk 6 and 5 are in progress, »Disk 6 is 60% complete »Disk 5 is 10% complete l Disk 4 is due to begin this week. l As of this week we have 3 full time technicians building disks. l NIKHEF has all services for disk 9A and 8A. They have started both. l NIKHEF is soon to receive services for 7A

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5. I Wilmut CCLRC5 Cooling circuit production l We go through lows and highs with circuit production! l Circuit production rate is sufficient…. Just. l Problems encountered and resolved include:- »Incorrect pipes delivered »Huge difficulty bending pipe from UTI (new pipe due soon) »Block supply complicated and intermittent. »Block reaming proved very problematic »Various cleaning problems. l Presently we have 3 contactors, 1 DL lab tech, making circuits and circuit components. We also have money for 1 more contractor if we start to fall behind schedule.

6. I Wilmut CCLRC6 Grounding and Shielding l Everything on disk is grounded accept opto harness wrap, these will be grounded once opto harnesses have passed testing. l Pipe to foil joints will be finally made after precise placement. This is proved to work on top of pipe sleeves. l Grounding finger makes disk assembly more difficult, but not impossible. l Patch panels grounded with foil fingers. l Disk grounded to support cylinder via foil tabs. l Foil plating varies in quality, Foils are only used if they can be easily tinned.

7. I Wilmut CCLRC7 Tapes and Opto l Oxford and Glasgow are ahead in tape supply. l Recent problem with w2 tapes, looks like it has been solved l NIKHEF is having problems with tape failiures (new cover layer) this is yet to be resolved. l Opto harness supply looks very good. RAL has harness ready down to disk 3C. l Tapes for spare disks ordered l No real worries with tapes any more.

8. I Wilmut CCLRC8 Bottom line l We are quite close to meeting the sheadule laid down by SH in May this year. l The final stages of disk assembly take longer than the schedules suggest. l Very few new problems are presenting them selves.

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