Leveraging the SLAC ExpertiseOutlook and Strategy

Tor Raubenheimer

May 4, 2011

Introduction

• SLAC has broad accelerator expertise– Accelerator and accelerator systems design– Beam physics and computing– Advanced accelerator concepts– High power rf

• Historically funded on HEP– HEP funding for accelerator research is decreasing while BES

funding is increasing although less quickly

• In this era of declining research funding, can we use WFO to support the research infrastructure and personnel leveraging our capabilities?

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Programmatic Elements and Future Directions

Adv. Accelerator R&D: Microwave accelerationPlasma accelerationLaser acceleration

FEL relatedR &D; FEL operationStorage rings

InstrumentationHigh rep rate, ultrafast

Accelerator Computations

Pulsed PowerModulators

BEAM DynamicsHigh Power RF

Fully aligned with SLAC mission

DOE fully funds100%

Unique capability @SLAC. DOE will partially fund

Very useful for SLACLargely funded through grants

NC Linac Design & Construction

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WFO – What does it mean for us?

• SLAC Accelerator research consists of two components:– Fundamental research (PWFA, DLA, beam theory, …)– Accelerator design (LCLS-I/II, ILC, Super-B, LHC, …)

• Have focused on projects in which we have physics interest and frequently leadership and have focused research on concepts that might advance the mission physics

• Will need to apply our skills to a wider set of projects, some of which will expand the SLAC mission– Need to develop a PI culture and support the development of

proposals while balancing resources between WFO and main program

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Present Funding Distribution

• Present ARD funding is roughly 40M$ with 2.5M$ in WFO at present. WFO includes Project-X, MAP, BNL, LLNL, CERN, SBIRs, US-Japan, …

FY11 Accelerator Research Funding

HEP ILC

HEP AccSci

HEP AccDev

HEP LARP

HEP FACET Ops

BES Echo

BES LCLS

WFO

• OHEP funding is expected to decrease significantly: ILC

• BES funding for Accelerator R&D will likely increasebut not to coverthe OHEP portion

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Accelerator Research Organization

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FEL & Beam Physics

Yunhai CaiDept. Head

Accelerator Computation

Kwok KoDept. Head

Advanced Accelerator Research

Eric ColbyDept. Head

Accelerator Design

Nan PhinneyDept. Head

Linac Systems

Chris AdolphsenDept. Head

Test Facilities

Carsten HastDept. Head

SLAC Accelerator Expertise

• Technical expertise across accelerators:– RF structures, power sources and pulsed power– Diagnostics, feedback and timing/synchronization

• Innovative acceleration concepts– High gradient linacs with rf, lasers and plasma

• Systems design– Beam dynamics– Rf design and modeling– Linac systems design and modeling

• Component fabrication and test facilities to verify prototypes

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Fabrication Capability & Test Facilities

• SLAC’s ability to conceive, design, build and test should be attractive to collaborators and WFO agreements– Experienced shops able to build desired components– Extensive rf test capabilities and multiple accelerator bunkers

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Linacs & Rf Components

• High gradient linacs– Being built with LLNL for MEGa-ray and may be proposed for ELI-NP

gamma source, MARIE XFEL, ZFEL in Holland, ….

• Ultra-fast Electron diffraction– New designs may offer high resolution imaging capability

• Rf guns– LCLS S-band gun is world leading– Developing X-band guns for higher brightness & compact sources

• Rf specialty components– Harmonic rf linearizers are being built into LCLS-II, BNL ATF, Trieste

FERMI, PSI XFEL and likely PAL XFEL and SINAP soft x-ray source– Deflecting mode cavities provide longitudinal phase space

diagnostics for short bunches: LCLS, NLCTA, likely PAL XFEL, …

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LLNL 250 MeV X-band Linac forCompton Gamma Ray Production

Collaboration started in 2010:XL4’s, structures, gun & BD

Subject of DARPA AXiS Proposalsubmitted by LLNL and SLAC

Largely based in 2003 X-bandtechnology

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X-Band Gun Development(Supported by MEGa-ray Collaboration and LDRD)

• Three times the LCLS gun brightness with higher gradients at X-band (200 MV/m cathode fields already demonstrated)– Will be used for ultra-fast electron diffraction (UED) source

– Supported on SLAC LDRD to establish technology

– Developing DOE BES proposal; will start looking elsewhere as well

– To be tested at new beamline in NLCTA

UED & XTA schematic

Electron Gun

100 MeV

Linac

Transverse deflecting cavity

Screens High Gradient X-band Rf Gun

200 MV/m at Cathode

Spectrometermagnet

LANL MaRIE Project: 50 keV XFEL

20 GeV, 50+ MV/m Linac(space limited)

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Structure Optimizations for MARIE

• X-band structures are very efficient for short-pulse FEL’s

• MARIE requireslong-pulseoperationwith 1~1.5ms beams

• Studyingdifferentoptions

SLAC Annual Budget Briefing for OHEPPage 13

Hadron Radiation Facility

• A new proton/ carbon ion radiation therapy center is being developed as a Stanford/SLAC/UCSF/LBNL proposal– 200 M$ facility to be proposed as therapy and R&D center– Leverage SLAC accelerator expertise in the design, procurement

and operation of the facility

Presentation TitlePage 14

Schematic

Advanced Technology Opportunities

• Industrial and Medical accelerators– Opportunities exist to apply new concepts to industrial or medical

accelerators, e.g. high power L-band linac for sterilization or high gradient X-band proton linac for hadron therapy

• 3 DARPA proposals have been submitted in last few months– A Direct Laser Acceleration Compton source with Stanford Univ.– A compact X-band Compton source with LLNL– An all optical radiation source with UCLA

Presentation TitlePage 15

Optical UndulatorA Grating-based DLA

A compact X-band ICS

Existing Collaborations (I)

• Working with Fermilab on Project-X– Funding for rf cavity design, rf power system design, kicker systems– 400 k$ in FY11 on rf power but expect this to grow in FY12– Focused on solid-state rf technology which will have broad

application to high power linacs, light sources and rings

• Working on Muon Accelerator Program– 260 k$ in FY11 for rf cavity design and fabrication– Future work on collider ring & MDI and linac design & dynamics– Grow program to 2~3 M$/year

• Working with US LARP and CERN on LHC and HL-LHC– Many tasks: collimators, crab cavities, feedback, ring design– Funding probably remains constant as tasks evolve

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Existing Collaborations (II)

• Working with CERN on X-band structure design & testing– Will help drive commercialization of X-band rf technology– Provide partial support SLAC test facilities (~200 k$/yr)

• Collaborating with LLNL on MEGa-ray Compton source– Building a test stand with rf gun in FY12– Buying components for 250 MeV linac (6 structures, 2 klystrons)– Working on accelerator physics, rf gun, rf systems– Roughly 1.2 M$ in FY11; expect to increase in FY12– Wrote DARPA proposal with LLNL with 7.2 M$ SLAC

• LANL on MARIE, a 50 keV XFEL– Initial studies of options for high gradient acceleration (S, C, X-

band)– Possible funding to continue studies in FY11 (~300k$)– Possible funding for design and hardware in FY12 and beyond

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Existing Collaborations (III)

• PSI XFEL and Trieste FERMI– Working on X-band linearizers (~600 k$ apiece in FY11)– Helping them understand high gradient upgrades (~10 M$ / GeV)

• Shanghai, Pohang and IHEP– All have expressed interest in high gradient linacs for XFELs,

deflecting cavities for diagnostics, and linearizers

• SciDAC– Modeling rf cavities, breakdown, dark current, etc for different

groups around the world (~200 k$ / year)

• ILC GDE– Been leading Linac System Design and Rf Power Sources since

2005 (~5 M$ / year); expecting this to drop to zero.– May be opportunities to continue efforts in some form

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Examples of Possible External Funding

# = funding may be split between SLAC and industry

Lab Topic TimeFundingScale

FundingRisk

CERN Ongoing structure design, fabrication & testing 2010-11 ~300k None

LLNL First phase of MEGa-ray construction 2010-11 ~1200k None

FNAL Project-X solid-state rf system development 2011 ~400k None

LANL Design studies for MARIE 2011 ~300k Low

LCLS SLED pulse compressor upgrade 2011-12 ~600k Low

LLNL Complete MEGa-ray 250 MeV linac 2011-12 ~2400k Low

LLNL Joint LLNL/SLAC DARPA AxIS Prop. 2011-14 ~7200k Med

CERN Additional CLIC structure testing at SLAC 2012-13 ~800k Med

CERN Three additional klystron-based test stands (SATS) 2012-14 ~2200k# Low

LANL R&D for MARIE on high grad. long-pulse linacs 2012-14 ~5000k High

LCLS X-band deflector (klystron, waveguide, …) 2013 ~2000k Med

LCLS-II Bunch compressor linearizer 2013 ~1200k Low

LCLS Energy dither (600 MeV w/ 4 XL4’s & 16 struct.) 2014-15 ~6000k High

ELI-NP High gradient 600 MeV linac for gamma ICS 2014-16 ~8000k# Med

PSI Energy dither / energy upgrade (0.4 ~ 2 GeV) 2016 ~10M$ per GeV# High

Additional Funding Opportunities

• Known opportunities:– DOE science labs and NNSA– International science labs– DARPA, DHS, NIH/NCI and industry

• Need to create program office to:– Help identify opportunities– Support proposal development and approval– Track performance and balance priorities across lab

• Need to establish a funding mechanism that supports program and allows development of new concepts– LDRD, WFO tax, OHEP core support, BES core support

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Challenges of a Multi-program Effort

• Gain experience developing proposals across AD– Early Career Awards– SciDAC proposals– DOE reviews and supplemental funding

• Changing SLAC culture to pursue external funding– PI-ship options exist and will grow with encouragement– Opens new set of opportunities for research– Increase rewards for successful proposals

• WFO is a commitment by the laboratory– WFO programs need to be fully supported by laboratory– Commit to support for PI’s between proposals

• Developing a risk management plan for WFO

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Summary

• A strong WFO program is possible– Have technology and expertise that is recognized and needed– Scale of topics identified thus far is ~60M$ over 5 years

• Must develop processes to identify opportunities and track performance– Use LDRD and other funding sources to help develop opportunities

• To be successful this must become primary focus many members of laboratory– Have the option of PI-ship now and will further develop the culture of

pursuing independent proposals

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