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Power plant

Power plant. Intervention done by Lngs All short term interventions Repair and deeper maintenance of UPS (Dec 08) Removal of diff sensor in output of Opera UPS (Jan 09) Intervention still to be done Switch on local/cabin ground: to be removed

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Power plant

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  1. Power plant • Intervention done by Lngs • All short term interventions • Repair and deeper maintenance of UPS (Dec 08) • Removal of diff sensor in output of Opera UPS (Jan 09) • Intervention still to be done • Switch on local/cabin ground: to be removed • Exchange BAM/Control room UPS’s (after BAM stop) • Automatic alarm to Opera when under UPS • News on the static UPS • static 200 KW machine (50 K€): Coccia is starting buying it • similar machine for Borexino: no problem in 10 years • Improvement on switchboard in hall C • To protect Opera from any failure/maintenance of the UPS we could install in the switchboard a switching system which withoutservice interruption commutes from UPS to Enel • cost of the system ~22 k€ (including tax and installation) Spinetti

  2. Borexino • Refrig. system: • Installed in Dec • lt lowers the top temperature of 3-4 °C • to be tested with switching on/off the magnets. Works on rs side • Floor and ULS zone: • Installation completed • BMS safety fence completed • Also safety barriers around magnets • BMS impacts twice against these barriers on Tue 13/1 • Dominique was not aware of the barriers installation Spinetti

  3. Shifts needs • CNGS run : • from 27/4 up to 15/11, 30 weeks Loc sh + Rem sh • ED on site: 3 people (RC, Sh, Mag) • ED remote: 4 people (Daq TT,HPT, RPC) 90 + 120 • TOTAL Shifts • BMS, BH, Developments: • all the year but with different effort, 48 weeks • BMS single shift in Jan and in May-Ago 101 + 33 • double shift Feb-Apr (CS repl) and Sep-Dec (reinforce extr.) • BH 2-3 people/day according to n of bricks 126 + …. • Dev single shift in Jan-May 192 + 48 • CS Scanning: • all the year,constant effort, 48 weeks • 3 shifts/day + 1 expert 192 + 48 • Total shifts (in weeks) 701 + 249 • shifts / sign ~ 6 weeks Spinetti

  4. Shifts sharing and organizer Sharing table rearranged for an optimal filling of the needs: contacts with Inst Rap. Bern+ETH, NA, LNF,SA, RM, IPCH,NGY contacted. Ham, IPNL guess from past Spinetti

  5. new system for booking shifts • Very preliminary draft by Meschini. • 1 page for each kind of shifts • Institution codes in a menu • Coordinators can update it for the final accounting Spinetti

  6. CS & Bricks • Production of CSD envelopes: • In Dec CSD production completed (Jp+Rus teams) : • 17000 CS replacing, 4000 new bricks, ~2000 reinserted bricks • CS replacement in hall C: • area needed already completely free • tables, tools, network and computers in preparation • brick extraction for ‘08 data concentrated in some Mondays • big effort: 2 teams of 2 people + supervisor • double shifts for BMS • 3 months (Feb-Apr) • ~ 50 week shifts • BAM Production of 3200 new bricks: • Jan 12th BAM has switched on • 3-4 days for alignment • production starteat increasing rate • for Jan 26 about 1800 bricks will be produced • end of production for middle Feb • BAM shifts not in the tables above. Spinetti

  7. Brick Handling • Improvements in tooling: • Automatic system for rotating bricks in Cosmic pit: • prevents errors in positioning the bricks for exposure • For the CS X-machine a simplier system for handling lead shielding: speed and safety Spinetti

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