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Summary from the Secondary Beam working group meeting ( link ) CENF meeting 6 th June 2013

Summary from the Secondary Beam working group meeting ( link ) CENF meeting 6 th June 2013. M. Calviani for the SBWG. Integration. S . Girod. S . Girod. Transport items. Detailed assessment of requirements with HE ongoing 40 ton crane Redundant , but at which level?

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Summary from the Secondary Beam working group meeting ( link ) CENF meeting 6 th June 2013

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  1. Summary from the Secondary Beam working group meeting (link)CENF meeting 6th June 2013 M. Calviani for the SBWG

  2. Integration S. Girod M. Calviani - CENF PTM

  3. S. Girod M. Calviani - CENF PTM

  4. Transport items • Detailed assessment of requirements with HE ongoing • 40 ton crane • Redundant, but at which level? • Issue when hot object are removed form the trench to move into the morgue • Ideas of modify the support structure (*) to allow for a “flask/bell”-like configuration • factor of ~50x attenuation with 4 cm Pb + 2 cm Fe (1 Sv/h  20 mSv/h) • … but ~25 ton shielding • 5 ton crane for “small” manipulation • Possible need for a “crane” to move material inside the cooling station rooms (manual?) • ~2 ton (CV input!) M. Calviani - CENF PTM

  5. “Croquis” N. Baddams/K. Kershaw M. Calviani - CENF PTM

  6. CE drawings b.755 • Ongoing modifications: • Modification for access to the service galleries • Personnel access • Control room and proximity EL equipment space reservation (Jura-side) CATIA MODEL ST0517376_01 L. Faisandel M. Calviani - CENF PTM

  7. “Croquis” N. Baddams M. Calviani - CENF PTM

  8. Target brainstorming • Target design/brainstorming ongoing to try to solve the issue of target bending • Design with a max acceptable sagitta of 1 mm, with 3 mm clearance between external target container and inner conductor • One idea is to have Be stiffeners to sustain the weight of the graphite • max thickness of the Ti-body shall be ~0.5 mm M. Calviani - CENF PTM

  9. VSC sector valves principle • First ideas with TE/VSC for the sectorization of the primary line • Further discussions needed for the primary/secondary beam interface G. Vandoni M. Calviani - CENF PTM

  10. M. Calviani - CENF PTM

  11. RP: primary/secondary beam interface C. Strabel, Hei. Vincke M. Calviani - CENF PTM

  12. C. Strabel, Hei. Vincke M. Calviani - CENF PTM

  13. M. Calviani - CENF PTM

  14. RP: air activation M. Calviani - CENF PTM

  15. Comments • Reduction of upstream shielding will be considered • 1.6 m pure Fe • Investigate the possibility to reduce the aperture • Depends on the design of the primary beam line and the effect of losing an MB • Installation of a passive “mask” should be considered • DGS/SEE will perform a thorough analysis of the ventilation/extraction requirements with the RP input • He-vessel flush every shutdown  3H release • Ventilation requirements underground area M. Calviani - CENF PTM

  16. Follow-up • EN/CV = requirements, loads, space, accessibility, etc. • EN/EL = configuration/requirements as soon as loads are ready • Max 50 m between switchgear and HV transformer • DGS/RP/RW = possible reuse of CERN waste • GS/ASE = first discussions on access system requirements • TE/VSC (TBC) = primary/secondary beam interface and He pumping • PH/DT (TBC) = Horn/reflector electrical configuration CNGS experience M. Calviani - CENF PTM

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