1-dec-06 hepap univ. subpanel global design effort 1 ilc report barry barish caltech / gde 1-dec-06...
Post on 15-Jan-2016
215 Views
Preview:
TRANSCRIPT
1-Dec-06 HEPAP Univ. Subpanel
Global Design Effort 1
ILC Report
Barry Barish
Caltech / GDE
1-Dec-06RDR Design Freeze
1-Dec-06 HEPAP Univ. Subpanel
Global Design Effort 2
Progress toward RDR
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 3
Baseline to a RDR
Jan July Dec 2006
Freeze ConfigurationOrganize for RDR
Bangalore
Review Design/Cost Methodology
Review InitialDesign / Cost Review Final
Design / CostRDR Document
Design and Costing PreliminaryRDR
Released
Frascati Vancouver Valencia
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 4
System July 18, 2006 - Cost Estimates received for Regionaldescription common e- e+ DR RTML ML BDS Exp Am Asia Eure- Source √e+ Source √DR √RTML √Main LinacBDS √Com, Op, ReliabControl System √ √ √ √ √ √ √Cryogenics √ √ √ * √ √ √ *Convent. Facilities √ √ √ √ √ √ √ * √ √ √ √Installation √ √ √ √ √ √ √Instrumentation √ √ √ √ √ √ √Cavities √ √ √Cryomodules √ √ √ √ √ √ √RF √ √ √ √ √ √ √ √ √Magnets & PS √ * √ *Dumps & Collim √ √ √ √ √Vacuum √ √ √ √ √ √Accel Phys
√ = complete, √ * = almost complete, missing something minor
Vancouver Cost Data
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 5
ILC Estimate by Area Systems -17july06
Main Linac DRs Beam Deliv RTML e+ Source Exp. Halls e- Source General
Costs by Area System
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 6
ILC Estimate by Technical & Global Systems - 22july06
Conventional Facilities
Dumps & Collimators
CM & Cavities
Instrumentation
RF
Vacuum
Installation
Magnets
Cryogenics
Controls
Costs by Technical & Global System
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 7
Optimizing Cost to Performance
RDR MB CCB
214mr IRs supported central injectors supported Removal of service tunnel rejected
conventional e+ source rejected
RF unit modifications (24 26 cav/klys) supported submitted
reduced RF in DR (6 9mm z) supported in prep
DR race-track lattice (CFS) supported in prep
reduced static cryo overhead supported in prep
removal linac RF overhead supported in prep
single-stage bunch compressor rejected
e- source: common pre-accelerator supported in prep
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 8
Vancouver Costs for BDS
• Cost drivers– CF&S– Magnet
system– Vacuum
system– Installation– Dumps &
Collimators
Total Cost
Additional costs for IR20 and IR2
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 9
2/20 mrad 14/14 mrad
• Motivation – Reduce costs
• 2 mrad beam line expensive, risky, especially extraction line• Common collider hall
– Advantages• Improved radiation conditions in the extraction lines• Better performance of downstream diagnostics• Easier design and operation of extraction optics and magnets• Reduced back scattering from extraction line elements
– Disadvantages• Impact on physics (appears minor at present). • Simpler incoming beam optics
• R&D on small crossing angles will continue as alternative
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 10
On-surface Detector Assembly• Vancouver WBS considered the underground halls
sized at 32m (W) x 72m (L) each to allow underground assembly of the largest considered detector.
• Conventional Facilities Schedule gives detector hall is ready for detector assembly 5 yrs from project start– If so, cannot fit our goal of “7years until first beam” and
“8years until physics run”
• Surface assembly allows to save 2-2.5 years and allows to fit into this goal– The collider hall size may be smaller (~40-50%) in this
case – A building on surface is needed, but savings may be
still substantial
• Optimization needs to be done
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 11
CMS assembly approach• Assembled on the surface in parallel with underground work• Allows pre-commissioning before lowering• Lowering using dedicated heavy lifting equipment• Potential for big time saving• Reduce size of underground hall required
On-surface assembly
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 12
Cost details of new 14/14 baseline
Total cost
1.000
0.3680.316 0.316
0
0.2
0.4
0.6
0.8
1
1.2
Total Common add for IR A add for IR B
a.u.
Updates from CF&SMagnets to be included
Should we go to a single IR and push
pull system and save 30% of BCD costs?
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 13
Push-Pull Evaluation
• Initiated by GDE & WWS at the end of September• Detailed list of questions to be studied developed:
• Large group of accelerator and detector colleagues, from ILC and other projects, is participating in design and discussion of these question
• The task force of detector experts was formed to contribute to detailed evaluation of the whole set of technical issues
http://www-project.slac.stanford.edu/ilc/acceldev/beamdelivery/rdr/docs/push-pull/
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 14
Cost Reductions Logged
Our efforts at Valencia identified another 4.91%!
05
10
152025
initia
l
BDS
14/1
4 + m
uon
1 e+ r
ing
ML RF
DR 9m
m +
e+ so
urce
RTML
CF&S
Sha
fts+
Centrariz
ed D
R
BDS
1IR
Cooli
ng+M
isc
Energy
?
Lumino
sity?
%
Accumulated Cost Savings Each Cost Savings
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 15
ILC Documents
• Several reports for different audiences
• Brochure – non-technical audiences, ready now• “Quantum Universe” level booklet ~30 pages
• Executive Summary ~ 30 pages • Physics motivation, accelerator and detectors
• RDR Report ~ 300 pages• high level description of the accelerator
• DCR Report ~ 250 pages• physics and detectors
•
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 16
RDR Report
• RDR is a high level description of the accelerator, CFS, sites and costs
• A snapshot of what we propose to build– not a history of R&D, design evolution, and
alternatives
• Editors: – Nan Phinney (SLAC), Nobu Toge (KEK), Nick Walker
(DESY)
• Original schedule was complete draft now, but has been pushed back because of cost iterations
1-Dec-06 HEPAP Univ. Subpanel
Global Design Effort 17
Reviewing RDR & Costs
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 18
Plans until Beijing (Feb. '07)
November December January February
Valencia
Further cost consolidationCCR preparation & submission
Cost & Design Freeze 30/11
Prepare for Full Cost Review
SLAC Cost Review 14-16/12
MAC 10-12/01/07
Final cost corrections and documentation
Agency cost briefings
Beijing: RDR draft published
RDR final editing
RDR prepare 1st drafts
2006 2007
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 19
Charge for MAC Review
• On Wednesday 10, Thursday 11 and Friday 12 (until noon) January 2007, there will be an ILC MAC meeting at the Cockcroft Institute, Daresbury, UK. The major item for the meeting is the ILC cost and overall design, with specific MAC tasks:
– Review the soundness of the overall RDR concept, identify any areas of concern, note what R&D is still needed, and comment on whether the performance parameters can be met.
– Review the cost methodology and identify any areas of concern.
• This will be the first occasion at which costs will be presented outside of the GDE.
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 20
What Happens after Beijing?
• Public Release of Draft RDR and Preliminary Costing at Beijing– Cost Reviews, etc– Finalize RDR by Summer 2007?
• Enter into Engineering Design Phase– Planning underway internally– Design will evolve through value engineering
and R&D program– General Goal is to have Construction Proposal
ready by 2010
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 21
Proposed RDR Review Process
1-Dec-06 HEPAP Univ. Subpanel
Global Design Effort 22
Siting Aspects of RDR&
Candidate Sites
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 23
Site Aspects of RDR
• Three Samples Sites– ILC Conventional Facilities Group: Jean-Luc Baldy (CERN), Vic
Kuchler (Fermilab) and Atsushi Enomoto (KEK) + Support Group
– Sample Site Analysis - Europe (CERN); Japan (?); US (Fermilab) also, TESLA for reference and Russia unsolicited
– Conventional Facilities are expensive! Make narrow definition for “host costs” - goal ~ 25% of total.
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 24
ILC Estimate by Technical & Global Systems - 22july06
Conventional Facilities
Dumps & Collimators
CM & Cavities
Instrumentation
RF
Vacuum
Installation
Magnets
Cryogenics
Controls
Costs by Technical & Global System
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 25
Site Aspects of RDR
• Three Samples Sites– ILC Conventional Facilities Group: Jean-Luc Baldy (CERN), Vic
Kuchler (Fermilab) and Atsushi Enomoto (KEK) + Support Group
– Sample Site Analysis - Europe (CERN); Japan (?); US (Fermilab) also, TESLA for reference and Russia unsolicited
– Conventional Facilities are expensive! Make narrow definition for “host costs” - goal ~ 25% of total.
• Costing Regional – Best estimates in “own” system of costing. They are close to equal, meaning the RDR siting chapter can concentrate on requirements, technical features, cost drivers, safety issues, other issues etc.
• Need “true” candidate sites within ~ 1-2 years for realistic engineering design. How do we solicit candidate sites
1-Dec-06 HEPAP Univ. Subpanel
Global Design Effort 26
CoordinatingGlobal R&D
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 27
The ‘S’ R&D Task Forces
S0High-Gradient Cavities
S1High-Gradient Cryomodule
S2Test Linac
S3Damping Ring
S4Beam Delivery
S5…Sn
To address priority R&D items, RDB has convened several ‘task forces’.
S0-S3 will report on Friday AM GDE plenary
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 28
The ‘S’ R&D Task Forces
• Addresses current ‘poor’ yield for EP cavities
• Primary goal: establish parameters for routinely producing 35 MV/m EP’d cavities– required 80% yield
S0High-Gradient Cavities
S1High-Gradient Cryomodule
S2Test Linac
S3Damping Ring
S4Beam Delivery
S5…SnH. Hayano, T. Higo, L. Lilje, J. Mammosser, H. Padamsee, M. Ross, K. Saito
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 29
Summary
• Status of Costing– First costing available at Vancouver (July)– Cost to performance optimization
• Status & Plans for design modifications– Several proposals accepted and some rejected– Changes having physics impact (Valencia)– Complete RDR by Beijing Meetings
• Global planning for critical R&D beginning– Formation of ‘S’ task forces
1-Dec-06 HEPAP Univ. Subpanel Global Design Effort 30
Some Key Issues
• The RDR– The RDR is a snapshop of the concept and scope of
the costs; NOT A MATURE DESIGN– It is an “optimized concept” for the physics scope
(ILCSC parameters) without doing detailed engineering (value engineering) and future R&D (demonstrations and alternatives)
– Engineering Design will be more cost effective, lower risk and maintain the physics scope.
• Next Phase – Expensive– Resources and Organization ???– Involve University Community in Acc Design/ R&D– Detector R&D Road map - collaborations/detectors
top related