1. LEA 01 October 2008D.LACARRERE1 Level 1 Level 2 SX8 - Emergency Exit – Schematic Side View (from inside building) NO SCALE OPTION 1 Point 8 – Barrack inside SX8 Building Emergency exit

2. LEA 01 October 2008D.LACARRERE2 SX8 - Emergency Exit – Schematic Top View (levels 1&2) GAP ~ 750 mm GAP ~ 700 mm OUTSIDE BARRACK Level 1 BARRACK Level 2 Lab. 2-006 Outer Tracker Lab. 2-005 LHCb RICH Lab. 1-003 LHCb Calos Lab. 1-004 Silicon Tracker NO SCALE 800 mm

3. LEA 01 October 2008D.LACARRERE3 List of the main tasks to be done (option 1) 1 - Level zero : Creation door - access behind barrack 2 - Level 1 : Creation passage 1.0 m – zone 1-004 (Silicon Tracker) 3 - Level 1 : Fabrication & installation platforms (2) – Recovery from DELPHI 4 - Level 2 : Fabrication & Installation platform (1) – Recovery from DELPHI 5 - Level 1 : Installation stairs (from 1 to zero) – Recovery from DELPHI 6 - Level 2 : Installation of stairs (from 2 to 1) – Recovery from DELPHI 7 - General Cleaning 8 - Emergency panels 9 - Cost (estimates) : ~ …… kCHF (Price Enquiry on going)

4. LEA 01 October 2008D.LACARRERE4 SX8 - Emergency Exit – Schematic Side View (from inside building) Level 1 Level 2 NO SCALE OPTION 2 Stairs

5. LEA 01 October 2008D.LACARRERE5 SX8 - Emergency Exit – Schematic Top View (levels 1&2) 800 mm OUTSIDE BARRACK Level 1 BARRACK Level 2 Lab. 2-006 Outer Tracker Lab. 2-005 LHCb RICH Lab. 1-003 LHCb Calos Lab. 1-004 Silicon Tracker NO SCALE 800 mm Stairs

6. LEA 01 October 2008D.LACARRERE6 Level 2 Level 1 SX8 - EAST SIDE - OUTSIDE NO SCALE Stairs SX8 - Emergency Exit – Side View (East)

7. LEA 01 October 2008D.LACARRERE7 List of the main tasks to be done (option 2) 1 - Level 1 : Creation passage (1.0 m) – zone 2-005 (RICH) 2 - Level 2 : Creation passage (1.0 m) – zone 1-003 (Calorimeters) 3 - Level 1 : Creation door 4 - Level 2 : Creation door 5 - Outside : Fabrication & Installation stairs tower 6 - General Cleaning 7 - Emergency panels 8 - Cost (estimates) : ……..kCHF (price enquiry on going)

8. LEA 01 October 2008D.LACARRERE8 Advantages & Disadvantages Comparison Emergency way to outside Longer pathShorter path Width700 – 750 mm800 mm Structure Recovery from DELPHI New Doors12 Passage1 (lab.1-004)2 (lab.1-003 & 2-005) Cost?? ITEMSOPTION 1OPTION 2