1. Adding New Volumes to G4 geometry Baseline Alexander Sharmazanashvili, GCCEC

2. Requirements for Adding New Volumes  Development of G4 geometry Baseline is multidirectional activity  Requirements for Adding:  Missing parts in G4  Detectors updates  CATIA tolls should be used for this activity  We know CATIA well  We now how to integrate in CATIA both “as built” geometry and G4  We can use power of this tool itself

3. Models Anatomy  ST models in many of cases describing just outer envelops  ST models don’t have descriptions of materials As-Built SmarTeam ST G4 / XML Blue Print  “As-built” geometry and G4 using different sources

4. ST Outer Envelops ST Model Reproduced Model in CATIA Using Manufacturing Drawings for Reproduction

5. ST vs G4 Comparison and Reproduction ST Model ST XML G4 Volume CATIA Comparison Identification of Missing Parts Models Repro- duction in CATIA

6. Simplification and XML coding CATIA Simplification XML Coding Detailed Volume: ~4418cm 3 Simplified Volume: ~4485cm 3 XML Coding

7. Loop for XML Overlaps Checking XML ATHENAVP1.iv.WRL CATIA Crosscheck Simplified Model

8. New Volumes Adding Life Cycle ST Model ST XML G4 Volume CATIA Comparison Identification of Missing Parts Models Repro- duction in CATIA Simplification in CATIA CATIA Crosscheck XML Coding ATHENA VP1 Update G4 with new XML Ok Nok

9. Consideration Services and Supports  For the moment detector components are well described in G4

10. Consideration of Supports  Feets and Rails

11. Consideration of Supports  Access Structures

12. Consideration of Services  Barrel Services

13. Consideration of Services  Racks, Cable Trays

14. Consideration of Services  Extended Calorimeter Services

15. Consideration of Services  Gas Services

16. Consideration of Services  Services of Muon Spectrometer

17. Consideration of Services  Cooling