The SLAC ATLAS Program:
Overview and Budget
David MacFarlane
For the SLAC ATLAS group
The SLAC ATLAS Program: Overview and Budget
Page 1
Outline
• Introduction and overall strategic direction
– Present and future HEP program at SLAC
– Opportunities and ambitions for SLAC/ATLAS program
• Overview of current ATLAS activities
– Activities on pixel and tracking systems, DAQ and high-level trigger
(HLT) systems, simulations, upgrade R&D, and planning for
enlarged computing role
• Budget overview and conclusions
– Challenges and support requirements
The SLAC ATLAS Program: Overview and Budget
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Near-term and ongoing HEP programs
• Play a significant role in ATLAS & LHC accelerator
commissioning, initial science analyses, & computing
• Facilitate optimal exploitation of the BABAR dataset as
scientific payoff for decade of B Factory operations
• Operate the LAT for Fermi GST, and continue to spearhead
scientific discovery with this unique observatory
• Maintain a world-class accelerator-science program,
including enabling role in technology development for the
ILC and leading high-gradient X-band research in the US
• Maintain world-leading theoretical programs in particle
physics and particle astrophysics and cosmology
The SLAC ATLAS Program: Overview and Budget
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Future HEP programs
• Expand ATLAS program to include a major role in the
upgrade of the ATLAS detector and the LHC machine
– ATLAS Phase 1 and 2 upgrades: Tracking and TDAQ systems
– Enhance ATLAS computing for physics exploitation of the LHC data
– Extend LHC machine contributions to include upgrade collimators,
development of PS2 design, & LLRF & feedback improvements
– Exploit synergies between detector and accelerator communities
• Construct and operate FACET for forefront experiments in
beam-driven plasma wakefield acceleration
• Bring LSST into development as a joint NSF-DOE project
• Participate in JDEM construction, development, and
science analyses
The SLAC ATLAS Program: Overview and Budget
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Future HEP programs
• Develop and construct a ton-scale version of EXO for the
initial suite of mid-scale experiments at DUSEL
• Facilitate a significant US role in SuperB in Italy and
participate in Project-X rf power systems R&D
• Perform state of the art experiments in laser dielectric
acceleration and develop high power X-band rf sources
• Initiate and maintain R&D efforts to enable longer-range
future programs such as SiD, GeODM, and AGIS
The SLAC ATLAS Program: Overview and Budget
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Why was it crucial for SLAC to join ATLAS?
• The most compelling questions in particle physics can only
be addressed at the energy frontier
• The best way of sustaining a vibrant energy frontier
community for a future linear collider is to be engaged now
• The energy frontier is the highest priority program for the
national user community & our traditional user base
• ATLAS is the future for our accelerator-based program, and
therefore the glue tying together the HEP program at SLAC
Led to SLAC to become a member
of ATLAS in July 2006
The SLAC ATLAS Program: Overview and Budget
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Initial challenges and opportunities
• Late entry into a major worldwide collaboration with
established players and institutional responsibilities
– Major impact still achieved by operating in a service mode to resolve
many real issues arising during commissioning over the last 3 years
• Core capabilities and unique expertise from constructing &
operating BABAR are now being applied to ATLAS
• Gaining an understanding with OHEP about the level of
growth has been challenging with OHEP programmatic
reorganization
• Our goal is to significantly strengthen the US ATLAS effort
by the infusion of a large and experienced SLAC team
The SLAC ATLAS Program: Overview and Budget
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Who is involved from SLAC?
• Faculty:
– Andy Haas (Panofsky Fellow), David MacFarlane, Ariel
Schwartzman (Asst Prof), Su Dong
• Scientific staff:
– Makoto Asai, Rainer Bartoldus, Mark Convery, Norman Graf,
Philippe Grenier, Jasmine Hasi, Michael Kelsey, Chris Kenney,
Peter Kim, Martin Kocian, Richard Mount, Tim Nelson, Rich
Partridge, Bill Wisniewski, Dennis Wright, Charles Young
• Technical staff:
– Karl Bouldin, Richard Claus, Gunther Haller, Ryan Herbst, Mike
Huffer, Jim McDonald, David Nelson, Marco Oriunno, James
Panetta, Andy Salnikov, Leonid Sapozhnikov, Douglas Smith, Wei
Yang, Matthias Wittgen
The SLAC ATLAS Program: Overview and Budget
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Who is involved from SLAC?
• Postdocs:
– Ignacio Aracena, Sarah Demers, Matthew Graham, Per Hansson,
Claus Horn, Paul Jackson, Silke Nelson, Michael Wilson
• Graduate Students:
– Jim Black, Bart Butler, David Miller, Dan Silverstein
The SLAC ATLAS Program: Overview and Budget
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Presentations on SLAC/ATLAS program
Talk 1: Pixel System and Simulations - Charlie Young
Talk 2: DAQ and trigger - Rainer Bartoldus
Talk 3: Physics tools and physics preparation - Ariel
Schwartzman
Talk 4: Upgrade R&D - Su Dong
Talk 5: ATLAS analysis and planning for a Western Data
Analysis Facility - Richard Mount
The SLAC ATLAS Program: Overview and Budget
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LHC upgrade timeline
Inner b-layer of
pixels begins to
die >300 fb-1
Inner TRT layer
>1034
ATLAS
Phase 1
TDR/MOU
Inner Detector Layout
LoI/iMOU
2009
2010
Total Integrated L~
2011
2012
250pb-1
Installation
of Phase 1
Earliest
Decision on
1035
Phase 2
FY
Inner layer of Si
Strips begins to
die> 700 fb-1
Calorimeter
electronics ~same
2013
50 fb-1
Installation
of Phase 2
2014
2015
2016
200fb-1
2017
400fb-1
2018
700fb-1
U.S.
CD-0
CD-1
CD-3
CD-4
Phase 1
DOE/NSF
Panel
Review
CD-2
CD-0
Phase 2
CD-2
CD-3 and Budget
The SLAC
ATLAS Program: Overview
CD-1
red
LHC running period
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What is the overall long-term SLAC strategy?
06
08
10
12
14
16
18
Development & critical service roles
Pixel
System
Stage 1: new inner layer
Stage 2: full
system upgrade
Development & critical service roles
Trigger/DAQ
System
SLAC a major partner in
ATLAS, broadly supporting
US ATLAS community
Stage 1: new architecture
& incremental upgrades
Stage 2: full
system upgrade
Physics engagement, computing and regional center growth
The SLAC ATLAS Program: Overview and Budget
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What is our strategy for taking on ATLAS tasks?
• Engage in experimental tasks after weighing several
different considerations:
–
–
–
–
–
–
–
Importance and urgency of ATLAS needs
Match to core competence at SLAC
Recognizing and incorporating our own ideas in defining tasks
Connection to our physics interests
Synergy with other areas of SLAC involvement
Synergy with future directions at SLAC
Synergy with local US community interests
• Not narrowly focused on one subsystem, but have tried to
maximize integral impact to best utilize individual expertise
• Establish a broad base to allow future growth
The SLAC ATLAS Program: Overview and Budget
Page 13
Pixel System and tracking
• Motivation
–
–
–
–
Interests on b-tag related physics topics (experience from SLD/D0)
Experience on pixel/silicon detectors (SLD/SiD/MK-II/GLAST/BaBar)
Synergy with future silicon based experiment, e.g. SiD
Strong ATLAS encouragement to couple operational experience at
SLAC into Pixel final assembly, commissioning and operations
Current ATLAS pixel and tracking system activities:
Scientific staff: Martin Kocian, Tim Nelson, Ariel Schwartzman, Charles
Young
Technical staff: Matthias Wittgen
Postdocs: Per Hansson, Claus Horn, Paul Jackson, Michael Wilson
Graduate Students: Bart Butler, David Miller, Dan Silverstein
Project lead, Faculty
The SLAC ATLAS Program: Overview and Budget
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Simulations
• Motivation
– GEANT4 core support coupled to major LHC user community
– Extensive FLUKA experience with Radiation Physics group
– Strong ties to experience in MDI and backgrounds at Mark II, SLD,
and BABAR
– Strong ATLAS encouragement to couple core GEANT4 experience
into simulation performance improvements
Current ATLAS simulation activities:
Scientific staff: Makoto Asai, Norman Graf, Michael Kelsey, Peter Kim,
Charles Young, Dennis Wright
The SLAC ATLAS Program: Overview and Budget
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DAQ and High Level Trigger (HLT)
• Motivation:
–
–
–
–
Connection of trigger to physics strategy
Extensive experience from BABAR in particular
Strong electronics and online software capability at SLAC
Strong ATLAS encouragement to couple BABAR trigger and DAQ
electronics experience into solving key technical problems
Current ATLAS DAQ and HLT system activities:
Scientific staff: Rainer Bartoldus, Philippe Grenier, Andy Haas, Su Dong
Technical staff: Andy Salnikov
Postdocs: Ignacio Aracena, Sarah Demers, Silke Nelson
Graduate Students: David Miller, Dan Silverstein
Current ATLAS CSC ROD system activities
Technical staff: Richard Claus, Gunther Haller, Ryan Herbst, Mike
Huffer, James Panetta, Leonid Sapozhnikov
The SLAC ATLAS Program: Overview and Budget
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Upgrade R&D: Pixel System and tracking
• ATLAS pixel and tracking system R&D related activities
– Phase 1: Pixel Insertable B-Layer (IBL) development
– Phase 2 (but some aspects may become incorporated in phase 1):
• Pixel 3d sensors, mechanical designs, data transmission and stave
electrical design, test stand and DAQ
Future IBL and full pixel upgrade R&D activities:
Scientific staff: Mark Convery, Philippe Grenier, Per Hansson, Jasmine Hasi,
Paul Jackson, Chris Kenney, Peter Kim, Martin Kocian, David MacFarlane,
Su Dong, Bill Wisniewski, Charles Young
Technical staff: Karl Bouldin, Richard Claus, Jim McDonald, David Nelson,
Marco Oriunno
The SLAC ATLAS Program: Overview and Budget
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Upgrade R&D: Simulations
• Pixel and Tracking Systems layout studies
– Basic upgrade layout design decisions for the future Pixel and
Silicon Tracker Systems need simulation support.
– Exploring use of existing ATLAS simulation tool kit in conjunction
with the linear collider framework LCsim (more flexible geometry
variations)
Future ATLAS tracking system simulation activities:
Scientific staff: Richard Partridge, Charles Young
Postdocs: Matthew Graham, Michael Wilson
The SLAC ATLAS Program: Overview and Budget
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Upgrade R&D: DAQ and HLT
• DAQ and HLT upgrade strategy
– Continuous improvements with adiabatic upgrades expected
– Much improved HLT computing resource usage
– Eventually a new DAQ infrastructure will be required to cope with
sLHC data rates
Future ATLAS DAQ and HLT system R&D activities:
Scientific staff: Rainer Bartoldus, Martin Kocian, Andy Haas, Su Dong
Technical staff: Richard Claus, Gunther Haller, Mike Huffer, James
Panetta, Andy Salnikov, Matthias Wittgen
The SLAC ATLAS Program: Overview and Budget
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Evaluating future Analysis Facility needs
• Future computing needs will become clearer with first data
– Tier 1 likely correctly provisioned for reconstruction
– Tier 2s will likely struggle to meet simulation and data-intensive
analysis, alignment, calibration and HLT validation needs leading to
a likely need for Analysis Facilities
– Options for ATLAS Tier 2 & 3 analysis implementation need
clarification and could involve SLAC hosting capabilities
– SLAC brings experience of BABAR data-intensive analysis
Current ATLAS Tier 2 activities:
Scientific staff: Richard Mount, Peter Kim
Technical staff: Wei Yang, Douglas Smith + SCCS personnel
Development of plan for future ATLAS computing role:
Scientific staff: Andy Haas, David MacFarlane, Richard Mount
The SLAC ATLAS Program: Overview and Budget
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The Bay Area as a west-coast ATLAS center
• CERN cannot host major portions of the LHC collaborations
long term
• The Bay Area could play a leading role in supporting LHC
physics
– Concentration of expertise on computing, analysis and detector
systems
– Proximity of physics analysis support centers, capability for hosting
workshops, tutorials and seminars
– Attractive training centers due to a combination of tutorials, available
expertise, & participation in upgrade activities
– Strength of Theory Groups & their strong interest in LHC physics
• Working to create a consensus in the US ATLAS
community for a viable regional center role
The SLAC ATLAS Program: Overview and Budget
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Summary of challenges to SLAC/ATLAS plan
• Migration of core manpower
– Viewed as a budget increase in the national proton research
program, for which a case must be convincingly argued
– Viewed institutionally as a migration of core scientific and technical
manpower with directly relevant skills and capabilities
• Computing role
– Tier 2 computing role relatively minor compared to capability
– Developing arguments for significantly enlarged scope of computing
support anticipating future directions for demand growth
• Scope of US and SLAC role in ATLAS upgrades
– Working with US ATLAS community to characterize and prioritize
upgrade activities and identify appropriate US roles
The SLAC ATLAS Program: Overview and Budget
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Proposed evolution of ATLAS effort
60.0
50.0
FTEs
40.0
30.0
20.0
10.0
FY2008
FY2009
FY2010
FY2011
FY2012
Perm. PhD
Temp. PhD
Graduate Students
Engineer
Comp. Prof.
Technician
Administrative
KA 120102 - Electron
The SLAC ATLAS Program: Overview and Budget
Page 23
Proposed evolution of ATLAS budget
12,000
k$ (Including OH)
10,000
8,000
6,000
4,000
2,000
0
FY2008
FY2009
SWF
FY2010
M&S
Travel
FY2011
FY2012
KA 120102 - Electron
The SLAC ATLAS Program: Overview and Budget
Page 24
What lies within the scope of this review?
• KA11 proton-accelerator research
–
–
–
–
–
Pixel system and simulation activities: Charlie Young
Trigger/DAQ system activities: Rainer Bartoldus
Physics tools and physics preparation: Ariel Schwartzman
Upgrade R&D: Su Dong
Planning for ATLAS computing: Richard Mount
• Other related activities outside scope
– KA11 Tier-2 center support
– KA15 Detector R&D support
The SLAC ATLAS Program: Overview and Budget
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Overall summary and outlook
• SLAC is moving to significantly expand our role on ATLAS
– Motivated by sustaining an energy frontier physics program at the
LHC in the mid-term and eventually the ILC in the future
– Matching core capabilities and operational expertise in areas that
are unique and/or appropriate for a national lab program
– A cornerstone of the future accelerator-based HEP program
• Moving forward with indentifying crucial upgrade roles
– Plan supports some of the crucial system upgrades that are
anticipated to be major future responsibilities for the US community
• Taking on appropriate roles for national lab in support the
highest priority LHC program
– Significantly enlarged ATLAS program will provide a strong anchor
on the west coast for maximizing return on US investment in ATLAS
The SLAC ATLAS Program: Overview and Budget
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Backup material
The SLAC ATLAS Program: Overview and Budget
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What is the origin of the growth?
70
0.90
0.80
60
0.70
0.60
40
0.50
0.40
30
Average FTE
Headcount & Total FTE
50
0.30
20
0.20
10
0.10
0
FY08
FY09
FY10
FY11
FY12
Fiscal Year
Headcount
Total FTE
Avg FTE
The SLAC ATLAS Program: Overview and Budget
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