Synergies and Common Issues with 11-T

B. Auchmann for the CERN/FNAL 11-T collaboration

HL-LHC meeting, Nov. 17, 2011

For 11-T design and schedule: see EUCARD meeting talk by M. Karppinen of Nov. 14, 2011

http://indico.cern.ch/conferenceTimeTable.py?confId=152511#20111115

2B. Auchmann TE-MSC-MDT

Conductor Baseline insulation Pole pieces, metallic spacers Ceramic binder/curing matrix End design experience Winding/curing tooling + procedure Handling tooling Reaction tooling + procedure Impregnation tooling + procedure Experience transferred by technicians Mechanical structure experience Length scale-up Lab infrastructure for 2 parallel production lines Credibility for Nb3Sn accelerator magnet projects

LARP and US Core Programs’ Technology used for 11-T

Nov. 17, 2011

3B. Auchmann TE-MSC-MDT

Measurement data of HQ and TQ Exchange on quench simulation and protection

strategies Exchange of ROXIE models

Analysis exchange so far ..

Nov. 17, 2011

4B. Auchmann TE-MSC-MDT

Insulation alternatives Passive compensation of persistent currents Mechanical concepts:

o Integrated pole with new gap control and bending (evolution of TQC and HFD ideas).

o 2-in-1 version with differential contraction between central posts, gap control, bending.

o Pole loading with special care for ends region. Intra-layer heaters

11-T Studies

Nov. 17, 2011

5B. Auchmann TE-MSC-MDT

Tunnel integration: o Heat extraction (more critical for triplet), o Electrical connections in tight space (studied also in HL-

LHC WP 3, Task 2) o Protection systems: what are realistic delays and

thresholds? (currently for nQPS threshold is 800 mV at 3.5 TeV due to electrical perturbations)

o Alignment New conductor generations in PIT an RRP Radiation resistant epoxies (more critical for triplet) Gather more experience with cored cable Study snap back (does it require dedicated

correctors?) Improve analysis capabilities for quench, persistent

currents, …

More Common Issues

Nov. 17, 2011