Wrap Up for Discussion

The need for a 450 GeV beam test area on thermal shock waves for the LHC is well established and accepted at the technical level.

We propose the WANF area for setting up a facility for testing close-beam devices with beam-induced thermal shock waves, prior to installation into sensitive accelerator environments.

This safe test bed will address all needs for the nominal/upgraded LHC : beam tests on collimators, absorbers, cables, SC magnet modules, instrumentation, windows … Radiation and safety aspects have been considered: strong support to move into WANF instead of irradiating a new tunnel area (e.g. TT61)!

Cost: 3.3 MCHF

(TL, base facility)

+

0.5 MCHF

(clean-up WANF)

+

0.6 MCHF

(upgrade)

Our goal was

2.0 – 2.5 MCHF

. No cheaper solution found! Some cost should not be paid by us (WANF clean-up)!? Possibilities to get additional budget?

Reminder budget phase II collimation total :

5.1 MCHF

(CERN) +

0.7 MCHF

(EU).

This must cover the collimator prototyping work and the beam test facility! Was defined top-down. Less than originally hoped from EU.

R. Assmann, 26.1.2009

•

Strategic input required

before we can invest more work.

Can the accelerator sector top management support:

– The approach taken (test risky elements before installation into the LHC, one common beam test facility for qualification and analysis of different near beam devices).

– The proposed solution (WANF).

• If not supported:

What alternatives should be considered?

• If our proposal is supported, then we suggest to move ahead:

– Define detailed work packages and budgets for various groups.

– Start procurement procedures (orders, MS, call for tender, …).

– Agree with SLAC formally on deliverables (pending DOE support).

– Present details in March/April 2009 collimation phase II project review for final approval.

Candidate dates for review: March 19/20 – Mar 31/Apr 1 – Apr 28/29 R. Assmann, 26.1.2009