IBBelle Original plan copy ATLAS IBL system two

IBBelle Original plan: copy ATLAS IBL system (two redundant cooling units) assemble complete unit in a 40’ container, ship to KEK and connect it However: no space in Tsukuba hall, extra building too expensive => Use only one unit which fits in 20’ container and in Tsukuba hall ATLAS Belle II H. -G. Moser, Trieste, September 2015 Sven. Vogt Tel. : +49 8932354336 E-Mail: vog@mpp. mpg. de 1

IBBelle H. -G. Moser, Trieste, September 2015 2

IBBelle for VXD Use only one unit Assemble on a platform Fits in a 20’ container No redundancy (ATLAS needs 100% up time in order to prevent reverse annealing of irradiated detectors. We don’t) Option: assemble 2 nd unit later and add it (budget available) 3 H. -G. Moser, Trieste, September 2015

Location at KEK Old PS, will be removed Ok for IBBelle New PS Can these pillars/tubes be removed for 2 nd unit? 4 H. -G. Moser, Trieste, September 2015

Schedule IBBelle assembled: December 2015 Comissioning, TÜV, shipping: June 2016 (First discussion with TÜV Sept. 30 2015) H. -G. Moser, Trieste, September 2015 5

Akku Unit Frame produced Akku delivered Next: plumbing 6 H. -G. Moser, Trieste, September 2015

However… Dirt (metal) and corrosion inside at welding lines found Cleaning and chemical treatment needed Check with company and NIKHEF what to do best H. -G. Moser, Trieste, September 2015 7

Chiller Unit Chiller in production Delivery scheduled 18. 9. 2015 8 H. -G. Moser, Trieste, September 2015

CO 2 Unit All parts delivered (except one heat exchanger; next week) Assembly ongoing 9 H. -G. Moser, Trieste, September 2015

Control Cabinet ready Next: cabling 10 H. -G. Moser, Trieste, September 2015

IBBelle base frame Adjustable feet Can be put on wheels (bogies) H. -G. Moser, Trieste, September 2015 11

IBBelle base frame Base frame assembled Control cabinet mounted Cabling started (e. g. grounding) 12 H. -G. Moser, Trieste, September 2015

Weight: ~ 4 t ca. 600 kg ca. 400 kg ca. 800 kg ca. 500 kg ca. 1000 kg Crane at KEK: max load 4. 5 t + 25% (include support lever!) H. -G. Moser, Trieste, September 2015 13

Manifold Boxes (2 x) - Manifold Boxes In work 14 H. -G. Moser, Trieste, September 2015

Junction Box - Junction box In work 15 H. -G. Moser, Trieste, September 2015

Components for flex tubes Dismountable & rotatable concentric joint (at manifold) - Parts produced Split (in-flow and return) at Belle side - Parts produced 16 H. -G. Moser, Trieste, September 2015

Flex Lines Need to decide where to produce CERN willing to help But need manpower To be discussed DESY agreed to do it Material can be ordered once exact length is known (12 m? ) 17 H. -G. Moser, Trieste, September 2015

Beast II / VXD integration Beast II and commissioning/cosmic ray test of the VXD will run (for some time) in parallel It may be difficult if not impossible to cool both systems with IBBelle (regulation, stability) Possible solution: use MARCO for one system MARCO for Beast II MARCO for PXD commissioning + no transfer line needed + Fits on B 4 + Small cooling load, better matched to MARCO + VXD commissioned with IBBelle (final system) - MARCO does not fit in B 1 (nearby? ) - Larger load on MARCO (should be ok) - VXD not commissioned with final system - Long additional transfer line needed (different operation conditions for IBBelle) H. -G. Moser, Trieste, September 2015 18

Thanks 19 H. -G. Moser, Trieste, September 2015