Integration of CLIC TBM in CLEX Electronics allocation and cables tracing Wilfrid Farabolini (CEA/IRFU) 16 October 2013

Cables and racks request TBM Cabling Summary System Racks for electronics Cable Type Quanti ty Ø (mm) Starting (S) and End (E) Points A Shielded bunkerCTF3 galleryTBMShielded bunkerOutside Shelter Pre- alignment Sensor conditioning crates (19"x 3U x 380mm) 3 x 43 U (3 racks) Rad-hard Muller MULRAD2404 S E 640 x Rad-hard Muller MULRAD264 S E 96 x MCA S E x MCA867.7 S E x MCA S E x NG S E 3267 x RF LDF x ethernet15 25 command for stepping motors control and Limit switch BI 1 rack 210 S E 200 x Vacuum 6 rows NG4 (4 conducteurs de 1mm2)28.7 S E x TCA3 (triaxial haute tension)27 S E 98 x DIODE: SVA3 (triaxial haute tension + 2 conducteurs 0.25mm2 basse tension)69.7 S E x NEG: PH3SJ (3x1.5mm2) 6A/10V max612.5 S E Magnet Cooling 2 x 43 U (2 racks) Temperature sensors305 E S 750 Supply pipe - SAS#1115 E S 225 Supply pipe - SAS#2115 E S 225 Supply pipe - PETS115 E S 225 Supply pipe - DBQ#1115E S 225 Supply pipe - DBQ#21 15 E S 225 Return pipe - SAS#1115 S E 225 Return pipe - SAS#2115 S E 225 Return pipe - PETS115 S E 225 Return pipe - DBQ#1115S E 225 Return pipe - DBQ#2115S E 225 Collected by Alexander Summarized by Dmitry mm 2 6 racks + 1 spare 5 holes + 1 spare Cables separation due to EMC constraints

1 st idea: additional drills on the ceiling Pros: - Minimum changes to the building Cons:- Delicate drilling (present cable tray and TBL line to be removed, dust inside) - Cables length > 20 m if to follow present cable trays - Problem to install new racks in the gallery - Staff in the gallery during operations CLIC Module TBL CALIFES

Shortest path from Module to Gallery Drill only on same rows as the present pits - building structure to be preserved – drilling the ceiling is problematic (GS/SE)

Problem to install the drilling machine Cable tray to be removed TBL equipments to be removed Protection from dust and water to be installed

Even more problems for cable path Cable trenches are full on this side Nothing authorized below air ducts level (transport vehicles) Any other path is very long (40 m for last installed RF cables)

Lack of space in the above gallery 2.5 crates available in the vacuum alley (to be negotiated) 3 crates available in the signals acquisition alley (after some rearrangement) Pits positions

2 nd solution: drill the wall towards CTF2 Pros: Simple drilling (Clear area, enough space for dust confinement) Possibility to install racks where are the disused 30 GHz racks Operations from a safer gallery (but still close to the X-Box1) Cons:Long cable length (>> 20 m, inside CLEX electronics required) Radioprotection of the CTF2 area to be investigated CLIC Module TBL CALIFES

Cables path towards CTF2 Possible drills More clearance but iron wall to be moved Possibility to add a cable tray under the ceiling but long path to reach the module (13 m to the wall) Only 3 crates available in the gallery above CTF2 if disused 30 GHz electronics is removed

Best choice: dedicated shelter on the car park Pros: Easiest drilling solution (from outside, minimum dust, clear area inside) Shortest possible cables length (< 20 m) Sufficient place to host the new racks Safe and comfortable operations inside the shelter (outside of the controlled area) Cons:New construction (Algeco 1 kCHF/m 2 ) with all services (air conditioning ?) Radioprotection of the car park to be investigated by RP CLIC Module TBL CALIFES Shelter 3 x 5 m

From Module to car park wall - Easy drilling of 6 holes (diam. 160 mm) with slope for RP - Still 2 m of trench to be cut to reach the wall x m fully available trench m to the wall (2.8 m thick) Alternatively use of the ventilation window chicane instead of drilling new holes (to be investigated)

A shelter on car park side 5 x 3 m available Example of a present shelter (high voltage electronics for TL2 tail clipper) Ventilation window

Possible shelter arrangements Dmitry Gudkov 4 x 3 m shelter

Conclusion The shelter on car park solution allows: -Minimal cable length and easy cables pulling (also a cost issue for “good” RF cables) -Easy crates installation and safe operations (outside controlled area) -Easy drilling of the holes (less building structure concern, drill from outside) -Alternatively possible use of the ventilation window (under investigation by Y. Body – EN-CV) -Possibility to displace some electronics cabinet inside for Rad- Hard tests -Requires cable trench extension (feasibility checked with (GS/SE) ) -RP to give the green light (G. Dumont contacted) -Decision to be taken by March 2014