The SLAC ATLAS Program: Overview and BudgetPage 1 The SLAC ATLAS Program: Overview and Budget David MacFarlane For the SLAC ATLAS group.

The SLAC ATLAS Program: Overview and Budget Page 1

The SLAC ATLAS Program: Overview and Budget

David MacFarlane

For the SLAC ATLAS group


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


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


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


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


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


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


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


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


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


LHC upgrade timeline

ATLAS

U.S.

2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

CD-0

Phase 1

Phase 2

Phase 1

Phase 2

DOE/NSF Panel

Review

CD-1

CD-2

CD-3

TDR/MOU

LoI/iMOU

Earliest Decision on

1035

CD-2

Inner Detector Layout

FY

CD-0CD-3

CD-1

Total Integrated L~

CD-4

Installation of Phase 1

Installation of Phase 2

250pb-1 50 fb-1 200fb-1 400fb-1 700fb-1

LHC running period red

Inner b-layer of pixels begins to die >300 fb-1 Inner TRT layer >1034

Inner layer of Si Strips begins to die> 700 fb-1 Calorimeter electronics ~same


What is the overall long-term SLAC strategy?

Trigger/DAQ System

Development & critical service roles

Stage 1: new architecture & incremental upgrades

Stage 2: full system upgrade

Pixel System

Development & critical service roles

Stage 1: new inner layer

Stage 2: full system upgrade

Physics engagement, computing and regional center growth

SLAC a major partner in ATLAS, broadly supporting

US ATLAS community

06 08 10 12 14 16 18


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


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

Project lead, Faculty

Current ATLAS pixel and tracking system activities:Scientific staff: Martin Kocian, Tim Nelson, Ariel Schwartzman, Charles

YoungTechnical staff: Matthias WittgenPostdocs: Per Hansson, Claus Horn, Paul Jackson, Michael Wilson

Graduate Students: Bart Butler, David Miller, Dan Silverstein


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


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 DongTechnical staff: Andy SalnikovPostdocs: Ignacio Aracena, Sarah Demers, Silke NelsonGraduate Students: David Miller, Dan Silverstein

Current ATLAS CSC ROD system activitiesTechnical staff: Richard Claus, Gunther Haller, Ryan Herbst, Mike

Huffer, James Panetta, Leonid Sapozhnikov


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


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 YoungPostdocs: Matthew Graham, Michael Wilson


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 DongTechnical staff: Richard Claus, Gunther Haller, Mike Huffer, James

Panetta, Andy Salnikov, Matthias Wittgen


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 KimTechnical staff: Wei Yang, Douglas Smith + SCCS personnel

Development of plan for future ATLAS computing role:Scientific staff: Andy Haas, David MacFarlane, Richard Mount


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


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


Proposed evolution of ATLAS effort

-

10.0

20.0

30.0

40.0

50.0

60.0

FY2008 FY2009 FY2010 FY2011 FY2012

FT

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Perm. PhD Temp. PhD Graduate Students Engineer

Comp. Prof. Technician Administrative KA 120102 - Electron


Proposed evolution of ATLAS budget

0

2,000

4,000

6,000

8,000

10,000

12,000

FY2008 FY2009 FY2010 FY2011 FY2012

k$

(In

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SWF M&S Travel KA 120102 - Electron


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


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


Backup material


What is the origin of the growth?

0

10

20

30

40

50

60

70

FY08 FY09 FY10 FY11 FY12

Fiscal Year

Hea

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To

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0.10

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0.80

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Ave

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Headcount Total FTE Avg FTE

The SLAC ATLAS Program: Overview and BudgetPage 1 The SLAC ATLAS Program: Overview and Budget David MacFarlane For the SLAC ATLAS group.

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