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• Re-gas compressors to 2.20 Mpa - Me• New oil mist adsorbers in compressors at 20k hrs - Me• Service cold heads - Sumitomo• Replace broken insulating vac valve – Alan & Me• Service ITC503’s and MKS937’s? - Me• Service CCG’s - Me• Service turbos – Dave Hands ex DL

Repairs and maintenance of cryostats and compressors before hall installation

Cryo, Electronics and other installation issues • Computers, interfaces & VME crate topology – Caen VME x2• Which computers in what racks • Another Vesda and commissioning – Fire suppression Ltd• New Dry pumps instead of oil based backing pumps –

Alan/Me• 4 x new Turbo controllers - Me• Magnetic shielding for turbos and ??? – Mike C.• Helium bottle & pipework for cassettes• Chilled water for compressors – sorted?• Rack smoke detectors like old system?

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Cable and fibre installation plans

• Ruggedised fibres from 3 PC’s in MLCR to 3x VME Crates in hall • Slow controls crate in Tr1 rack holds both 1553, 10M cable to Tr2• VLSB readout crates in both Tr1&Tr2 racks • Tracker1 rack already has 3 fibres laid in place• Tracker2 needs doing

• Timing/triggering cables – Speak to Paul, uses few VME modules • VLSB cables limited to 9.8 metres in length (AFE’s to VME crate)• Get latest rack positions from Ian – needs minor update

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Rack layout for ground floor by Q7,8,9,

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Rack layout for North Mezz extension platform

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Hall – Ground floor

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Hall – Mezz level