VELO Status at Liverpool

T. Bowcock

Prototype Module(1)

Mechanical Design Several different options Reduce complexity “Dead” reckoning

Prototype Module(2)

Similar to TDR

Pipe slides through paddle

Prototype Module(3)

Single (asymmetric) Cooling Pipe

Prototype Module(4)

Base simplified(?)Production in CF

Prototype Module(5)

InvarCTECHE coating

Prototype Module Schedule

Mechanical Module(2-4 weeks) Two separate bases Paddles(2) Substrates(4-6) Bonding SCTa Hybrids to Substrates

Measurements Alignment of two sides

NAS, JC jig and location facility Thermal Tests

Cooling System(1)

Complete awaiting safety clearance !!!

Cooling System(2)

Safety compliant (factor 10!) certified

Leak testedCO2 monitor

Glues

Investigate glue additives Better thermal properties

Carbon Nanotubes(multiwall 20micron) Boron Nitride(1micron ceramic)

Control resistivity

Easily achieve >2WmK Boron Nitride

Ceramic mix and leakage current (MPI) Test 3 micron size

Funding for Prototyping

Despite recent funding crisis are able to buy (at least) one full prototype run that is non Micron.CIS have made offer(GLC) Delivery schedule p-spray technology for n+n Mask set from CIS

Finalize the details – preproduction Review of r.f. foil