1. 1 Update on Power Supplies TB 16.3.06 L.Jirden u LV u Concerns u Orders & deliveries u Maintenance u HV u Overview u purchasing

2. 2 LVPS overview Wiener PL500/F12 TPCCERN contract? TRDCERN contract? PHOS CPV MU TRK MU TRG Arem Pro SDDnon-CERN contract Caen EASY SPD FMD PMD ACORDE SSDnon-CERN contract HMPIDnon-CERN contract Caen SASY TOFnon-CERN contract Caen SY1527 T0non-CERN contract? V0

3. 3 230 VAC 1ph Ethernet 3U UX CR4 2-8V: 10A 25A 50A 100A 5-15V: 10A 20A MAIN CONCERNS: - OPC Server not yet ready - Long delivery delays Wiener PL500/F12 water cooled USERS: No PS TPC20 TRD50 PHOS 6 CPV3 MU-TRK30 MU-TRG 6 TOTAL ~ 115

4. 4 Caen EASY UX CR4 2-8V: 9A 25A 50A 100A MAIN CONCERNS: - Power factor + harmonic rejection too low - Efficiency too low - Radiation tolerance too low - Connectors & mechanical issues - long delivery delays 5-15V: 20A 3U 6U A3486 Ethernet 4U 1527LC A1676 380 VAC 3ph 48 VDC FILTER 3U USERS: No crates SPD6 FMD 1 PMD6 ACORDE 1 HMPID3 SSD 18 TOF36 TOTAL ~70

5. 5 u Test Samples u TPC, MTG, MTK ordered 7 units in Aug/Sept 05 u Not yet delivered – not before 24 March 06 u Bulk order u MTK, and PHOS ordered in Jan 06, TPC & TRD ? u CERN negotiating production & delivery plan u All empty bins asked to be delivered mid May u Patch panel mounted and cabled by CERN u Rack mounting prototype being prepared in demonstrator rack Bldg 4 u Installation in UX racks June/July u 1 PS of each type to each detector to be delivered July u To enable commissioning to start u Bulk delivery end September u Final installations November u Reception + tests u Delivery to CERN ESS group (if wished) u Unpacking, entry into support dBase u Reception tests with semi-automatic tester Orders and delivery - Wiener

6. 6 u Test samples u None ordered u Bulk order u SPD,FMD,PMD,ACORDE, HMPID ordered all, TOF & SSD ? u Caen need to finalize the systems before production and delivery u Filter unit to be tested by CERN next week u Radiation tests no good; very tedious, but not critical for ALICE u Deliveries (on CERN contract) earliest end September 06 u Installation: earliest November u Commissioning: other devices to be found u Reception u Delivery to CERN ESS group (if wished) u Unpacking, entry into support dBase u Reception tests Orders & delivery - Caen

7. 7 Maintenance u On-site maintenance and repair foreseen u To avoid possible problems due to INB u Done by Caen & Wiener u Organized and handled by CERN ESS group

8. 8 CAENordered SPD1yes SSD1yes TOF4? HMPID1yes CPV1? T0 + V01? PMD1? FMD1yes ZDC1? MTK2? MTG2? ACORDE1? TOTAL17 ISEGordered SDD6? TPC3no TRD3no PHOS1no TOTAL13 HVPS overview

9. 9 HVPS purchasing u No common purchasing done u Each detector to take care of their own orders u Order via Institute or via CERN u Via CERN: contact D.Gregorio, CERN Purchasing u Time to order now u Common effort and support for control part u OPC server, Framework components, etc