of 38/38
PIP and PIP-II Status and Plans Sergei Nagaitsev Fermilab PAC meeting 24 July 2014

PIP and PIP-II Status and Plans

  • View
    167

  • Download
    13

Embed Size (px)

DESCRIPTION

PIP and PIP-II Status and Plans. Sergei Nagaitsev Fermilab PAC meeting 24 July 2014. Fermilab after the Tevatron. Fermilab operates the largest accelerator complex in the U.S., 2 nd largest in the world (even after termination of the Tevatron ) Also part of operations : - PowerPoint PPT Presentation

Text of PIP and PIP-II Status and Plans

PIP and PIP-II Status and Plans

PIP and PIP-II Status and PlansSergei NagaitsevFermilab PAC meeting24 July 2014

Fermilab after the TevatronFermilab operates the largest accelerator complex in the U.S., 2nd largest in the world (even after termination of the Tevatron)Also part of operations:Proton Improvement Plan (PIP)Muon Campus projectsTest facilities (magnets, SRF cavities)Projects: Muon g-2, Mu2e, LBNF, MicroBooNE, LCLS-II (at SLAC), PIP-IIPrograms: MAP, LARP, ILCResearchCommercialization of our accelerator technologies.S. Nagaitsev | PIP and PIP-II Status and Plans27/24/2014Accelerator OperationsFermilab operates a total of 16 km of accelerators and beamlinesA 400-MeV proton linear accelerator (0.15 km)An 8-GeV Booster synchrotron (0.5 km)An 8-GeV accumulator ring (3.3 km)A 120-GeV synchrotron (3.3 km)A Muon Campus Delivery ring (0.5 km)Soon: Muon g-2 ringTransfer lines and fixed target beam lines (8 km)Two high power target stations, several low-power targetsAnd maintains130 buildings, structures, service bldgs,

S. Nagaitsev | PIP and PIP-II Status and Plans37/24/2014Fermilab Accelerator Complex

Linac: NTF, MTABNB: MicroBooNENuMI: MINOS+, MINERvA, NOvAFixed Target: SeaQuest, Test Beam Facility, M-CenterMuon: g-2, Mu2e (future) Also, test and R&D facilities:ASTA PXIECMTFVarious cryo test standsS. Nagaitsev | PIP and PIP-II Status and Plans4

7/24/2014Present NuMI performance (protons on target)FY14 performance metric: 3.2e20 POT7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans5

Recycler is now part of operations7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans6

Fermilab Booster S. Nagaitsev | PIP and PIP-II Status and Plans7Booster is a resonant machine running at 15 Hz RF is pulsed, limited to ~7.5 Hz at higher frequencies the cavities sparkat higher frequencies the tuners overheatRefurbishment plan to achieve 15 Hz is part of PIPThere is an RF pre-pulse associated with beam cyclesIt means that the beam pulse rate is less than 7.5 Hz

7/24/2014Proton Improvement Plan (PIP)S. Nagaitsev | PIP and PIP-II Status and Plans8The PIP campaign has several goals:Increased reliability of the Linac/Booster complexControl of beam lossesIncreased proton flux (15 Hz)

Main challenge: keep beam losses constant while increasing the protons on targetBeam loss limits are set at levels for personnel safety (ALARA) and equipment serviceability

7/24/2014Booster RF cavitiesJuly 1970 Flatbed semi delivering Booster RF cavity pair

Cavities built by GES. Nagaitsev | PIP and PIP-II Status and Plans9

7/24/2014Booster rf cavitiesBooster has 22 slots for rf cavitiesWe can not run (4.3e12) beam with fewer than 17 cavities.We have 19 cavities on handAt any given time: 17 are installed, 2 are out for repaireach cavity requires 3 tuners. Tuners require 3 weeks to rebuild during the 10-week refurbishment process. Cavity #20 is an old 1st prototype cavity. It was restored and equipped with new tuners, and ready for testingS. Nagaitsev | PIP and PIP-II Status and Plans10

7/24/2014Booster PIP - Refurbishment of 40 year old cavities (facelift) S. Nagaitsev | PIP and PIP-II Status and Plans11

Cavity RemovalCool-downRemove TunersRebuild - Cones & TunersRebuild Stems/FlangesRe-AssembleTestingWeeks010Cavity Removal - Stripping

Tuners Rebuild

Rebuild and Test

7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans12

Booster PIP - Cavity Refurbishment Timeline

Refurbishment: Fun facts and beyondAll cavities in tunnel need to be refurbished before higher rep rate (15 Hz) is possibleAfter refurbishment is completed higher flux will require timeAfter refurbishment is completed the cavities will still be OLDThere is likely to be failures as cavities are run harderEven if we have 20 cavities installed in the ring, this leaves us with no spares.The plan is to procure 3 more cavities in FY16,17same type as present cavitieslarger boreinstall 2 in ring as hot sparesS. Nagaitsev | PIP and PIP-II Status and Plans13

7/24/2014PIP and PIP-II interaction PIP original goals were:Achieve 15 Hz Booster operation with beamOperate Linac and Booster until 2025, then replace with Project X (8 GeV).Several reliability issues were ignored because of the 2025 end date.PIP-II is not replacing the Booster, only the linacNeed to reassess the PIP scopeNeed to set a new end-date for the Booster (2030?)Started regular meeting to coordinate PIP and PIP-II7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans14PIP-II Physics OpportunitiesLBNF1.2 MW of beam power on day one; 2.4 MW ultimatelyFlexible proton beam energy (60-120 GeV) NuMI1.2 MW beam power in the interim Mu2e30-50% increase in beam power immediately*Potential for ~25-100 kW at 800 MeVCurrent Mu2e configuration limits to 25-30 kWSBN30-50% increase in beam power immediately*

* Possible extension of Booster operations to 20 Hz is under consideration, but not incorporated into these estimates

7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans15Per Bob B:Shielding can be upgraded to accommodate ~25 kWInstantaneous proton rate (measured over 1.7 usec) can go up about a factor of three (before problems with event pileup in the detector)15PIP-II GoalsProton Improvement Plan-II supports these long term physics research goals while providing a platform for the future

Design CriteriaDeliver 1.2 MW of beam power at 120 GeV, with power approaching 1 MW at energies down to 60 GeV, at the start of LBNF operationsSupport the current 8 GeV program, including Mu2e, g-2, and the suite of short-baseline neutrino experimentsProvide upgrade path for Mu2eProvide a platform for extension of beam power to LBNF to >2 MWProvide a platform for extension of capability to high duty factor/higher beam power operationsAt an affordable cost to DOES. Nagaitsev | PIP and PIP-II Status and Plans16

7/24/2014PIP/PIP-II StrategyIncrease Booster beam repetition rate to 15 Hz (PIP)700 kW to NOvA concurrent with 8 GeV programIncrease Booster/Main Injector per pulse intensity by 50%; decrease MI cycle time modestlyIncrease Booster injection energyto ~800 MeVModest modifications to Booster/Recycler/MITo accommodate higher intensities and higher Booster injection energy

7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans17

PIP-IIWe believe the most cost-effective means of achieving these goals is via an 800 MeV superconducting pulsed linac, extendible to support >2 MW operations to LBNF and upgradable to continuous wave (CW) operationsBuilds on significant existing infrastructureCapitalizes on major investment in superconducting rf technologiesEliminates significant operational risks inherent in existing linacSiting consistent with eventual replacement of the Booster as the source of protons for injection into Main InjectorWhitepaper available atprojectx-docdb.fnal.gov/cgi-bin/ShowDocument?docid=12327/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans18PIP-II Performance Goals Performance ParameterPIPPIP-IILinac Beam Energy400800MeVLinac Beam Current252mALinac Beam Pulse Length0.030.5msecLinac Pulse Repetition Rate1515 HzLinac Beam Power to Booster413kWLinac Beam Power Capability (@>10% Duty Factor)4~200kWMu2e Upgrade Potential (800 MeV)NA>100kWBooster Protons per Pulse 4.210126.41012Booster Pulse Repetition Rate1515HzBooster Beam Power @ 8 GeV80120kWBeam Power to 8 GeV Program (max)3240kWMain Injector Protons per Pulse4.910137.51013Main Injector Cycle Time @ 120 GeV1.331.2secLBNF Beam Power @ 120 GeV*0.71.2MWLBNF Upgrade Potential @ 60-120 GeVNA>2MW7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans19

*LBNF beam power can be maintained to ~80 GeV, then scales with energyPIP-II Site Layout (provisional)

7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans20

PIP-II Status and StrategyPIP-II is currently pre-CD-0Complete concept existsDocumented in whitepaper; technical backup in PX RDRR&D program underwayFront end (PXIE) and superconducting rf developmentStrong endorsement from P5Recommendation 14: Upgrade the Fermilab proton accelerator complex to produce higher intensity beams. R&D for the Proton Improvement Plan II (PIP-II) should proceed immediately, followed by construction, to provide proton beams of >1 MW by the time of first operation of the new long-baseline neutrino facility.Applies in all budget scenarios considered.Discussions with P5, Fermilab, and DOE/OHEP management have been in context of FY19 construction startConsistent R&D deliverables list establishedPreliminary discussions on potential international in-kind contributionsAligned with LCLS-II and LBNF activitiesGoals for the next yearRelease PIP-II specific RDRMaintain PXIE and SRF development on established schedulesSupport DOE in the development of Mission Need StatementEstablish PIP-II Office, within Accelerator Division

S. Nagaitsev | PIP and PIP-II Status and Plans217/24/2014PIP-II CollaborationCollaboration MOUs for the RD&D phase (through CD-2) :NationalIIFCANLORNL/SNS BARC/MumbaiBNLPNNL IUAC/DelhiCornellUTennRRCAT/IndoreFermilabTJNAFVECC/KolkataLBNLSLACMSUILC/ARTNCSUOngoing collaboration/contacts with RAL/FETS (UK), ESS (Sweden), SPL (CERN), RISP (Korea), China/ADSAnnual Collaboration Meeting (June 3-4 at Fermilab)https://indico.fnal.gov/conferenceDisplay.py?confId=8365

7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans2222PIP-II International ContributionsDiscussions at agency and laboratory levels indicate that an 800 MeV SC linac could attract significant in-kind contributions from India/Europe/AsiaSC accelerating structuresRF sourcesInstrumentationMagnets/power suppliesSignificant R&D collaboration for >5 years with IndiaDiscussions at DOE-DAE level on potential Indian in-kind contributionsS. Nagaitsev | PIP and PIP-II Status and Plans23

7/24/2014Flexible Platform for the FuturePIP-II Inherent Capability~200 kW @ 800 MeV10 Mu2e sensitivity2 MW to LBNFFlexibility for future experimentsMuons, Kaons @100s kWCompatible with muon acceleration needs (Mark P talk)

7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans24

SummaryThe Fermilab accelerator complex can be upgraded to establish LBNF as the leading long-baseline program in the world, with >1 MW at startup (2025)The Proton Improvement Plan-II (PIP-II) is a complete, integrated, cost effective concept, that meets this goal, while leveraging U.S. superconducting rf investment,attracting international partners,providing a platform for the long-term futurePIP-II retains flexibility to eventually realize the full potential of the Fermilab complexLBNF >2 MWMu2e sensitivity x10MW-class, high duty factor beams for rare processes experimentsWe have received a positive recommendation from P5 and are working with Fermilab and OHEP management to move forward.

7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans2525Backup Slides7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans26PXIE will address the address/measure the following:LEBT pre-chopping Vacuum management in the LEBT/RFQ regionValidation of chopper performanceBunch extinctionMEBT beam absorberMEBT vacuum managementOperation of HWR in close proximity to 10 kW absorberOperation of SSR with beam, including resonance controlEmittance preservation and beam halo formation through the front end

RFQMEBTHWRSSR1HEBTLEBT40 m, ~25 MeVS. Nagaitsev | PIP and PIP-II Status and Plans27PXIE @ CMTF7/24/201427PXIE7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans28

RFQ MEBT HWRSSR1HEBTLEBTCollaboratorsANL: HWRLBNL:LEBT, RFQSNS: LEBTIndia (BARC): MEBT

30 keV2.1 MeV10 MeV25 MeV

SRF R&D7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans29

HWR SSR1 SSR2LB650HB650

SRF Development Status S. Nagaitsev | PIP and PIP-II Status and Plans307/24/2014 SRF R&D: Q0 7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans31

Q0Eacc [MV/m]Nitrogen-doped 9-cell cavities vs typical 120C bake (2K)PIP-II Linac Technology Map7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans32SectionFreqEnergy (MeV)Cav/mag/CMTypeRFQ162.50.03-2.1HWR (opt=0.11)162.52.1-118/8/1HWR, solenoidSSR1 (opt=0.22) 32511-3816/8/ 2SSR, solenoidSSR2 (opt=0.51) 32538-17735/21/7SSR, solenoidLB 650 (G=0.61) 650177-48030/20/55-cell elliptical, doubletHB 650 (G=0.9) 650480-80024/10/45-cell elliptical, doubletb=0.11b=0.22b=0.51b=0.61b=0.9325 MHz11-177 MeV650 MHz177-800 MeVSC162.5 MHz0.03-11 MeVLEBTRFQMEBTRTISPXIE

Proton DemandS. Nagaitsev | PIP and PIP-II Status and Plans33

g-2Mu2e8 GeV NOvA7/24/2014Cryogenic SystemRequired to support 5% cryogenic duty factorConfiguration capable of 10-15% with more pumping160 240 kW beam power at 800 MeV7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans34

Mu2e w/ PIP-IICan operate PIP-II linac up to ~15% duty factor with cryogenic system as designedRF system as designed can support 2 mA (averaged over 1 msec) at 15% duty factorRFQ can supply 10 mAMEBT chopper can provide arbitrary bunch patterns for separation at downstream end of linac.Mu2e Operations:10% micro-duty factor (100 ns1 MHz)13.5% macro-duty factor (9 ms15 Hz)10%13.5%10mA800 MeV = 108 kW

7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans35

Mu2e w/PIP-II7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans36

9 ms, 1 mA (Mu2e)1 ms, 2 mA (Boo)67 ms...1 ms6 ns 100 ns, 10 mA...7/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans377/24/2014S. Nagaitsev | PIP and PIP-II Status and Plans38