MDI-related information

Lau Gatignon

MDI meeting 17-12-2010

Contents

Post-collision line and dumps Cost of MDI+BDS+PCLD TDR CDR Discussion

Post-collision line and Dumps

The Post-Collision line sub-WG has developedinto a sizeable team

There is synergy between the final beam dumps, tune-up dumps and various intermediate and drive beam dumps

Therefore a separate working group for Dumps and Post-Collision Line has been formed, chaired by Edda Gschwendtner. This group reports directly to CTC, but also (as in the past) to MDI for matters related to MDI.

PCLD Mandate (1)

PCLD Mandate (2)

PCLD Mandate (3)

PLCD Membership Chairperson: Gschwendtner Edda

Other members: being defined, including some MDI members

CLIC Cost Estimate An internal CLIC Cost Review took place last Friday. The results are strictly

confidential. The cost reports for MDI, BDS and PCLD are combined. There are still

missing inputs, in particular for the dumps and for the BDS. The BDS magnets will be pre-designed and costed starting in January. The

specifications of the magnets (I, V, dI, time constants, etcetera) will serve as input for the rectifier and cabling estimates (including for QD0 and PCL).

Also collimators, (optional) muon sweepers, etcetera are still missing The topics done are listed in the next slide. Discussion of technical issues in

the next QD0 meeting. Thanks to Ray and Thibaut for valuable new input.MDI+BDS+PCL is still only representing a tiny fraction of the total.

An external CLIC Cost Review is scheduled for April.

Cost SummaryItem PBS kCHF Comments4 QD0 magnets 4.2.2.5 But replaceable item!

IP feedback system 4.2.2.7 Preliminary

Pre-alignment system (BDS+MDI) 4.1.1.9, 4.1.2.9, 4.2.2.9

Stabilization 4.2.2.14

Pre-isolation (2 systems) 4.2.2.8 CE uncertainties significant

IR vacuum 4.2.2.3

Post-collision line magnets 4.3.1.5

Post-collision line vacuum 4.3.1.3

QD0 support tubes 4x) 4.2.2.8

BDS vacuum 4.1.1.3. 4.1.2.3

BDS instrumentation, … 4.1.1.7, 4.1.2.7

Total so far Excl. dump & missing items

Confidential

Towards the ‘TDR’ Following the new MTR (reduced increase of resources for CLIC),

the TDR phase has been split in two parts:1) A project preparation phase from 2011-20162) A project implementation phase from 2016 onward

See details in a few selected slides from Roberto Corsini’s talk at the CLIC Meeting on Friday 19 November

The ACE (Advisory Committee) in February 2011 will be dedicated to the preparations for the next phase

We must thus use the month of January to converge on our ideas and plans for this next phase,

CDR Status The CDR has been officially submitted on December 8th.

The final version is available from today’s MDI agenda.

It includes a list of valuable corrections by Lucie (discussed on a Monday mtg).

A preliminary author list for the MDI chapters has been established and can

still easily be modified.

Comments and corrections to this list are most welcome.

The chapters themselves can also be modified but only for very good reasons –

and therefore only once (if at all).

E.g. pre-alignment or pre-isolator results to be added.

And an additional curve on the luminosity spectrum plot?

I consider the existence of the TDR chapter a remarkable collective

achievement of the is working group (very late start!) and I wish to thank and

congratulate all that have contributed!

Discussion