02 - Facility for Rare Isotope Beams

FRIB Accelerator Status
Jie Wei
FRIB Accelerator Systems Division Director
This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661.
Michigan State University designs and establishes FRIB as a DOE Office of Science National User Facility in support of the mission of the Office of Nuclear Physics.
Outline
 FRIB accelerator overview
 Major development and SRF status
 Accelerator Systems Division status
 Summary
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 2
FRIB on Accelerator Beam-power Frontier
Raising Heavy-ion Beam Power by Two Orders-of-Magnitude
 During the past decade,
104
proton accelerators raised
beam power by x10
3
 FRIB will raise heavy-ion
beam power from ~1 kW
to 400 kW
• From proton to
• Using SRF linac from
0.5 MeV/u to > 200 MeV/u
238U
Average Beam Current (I·A/Q) [mA·u]
• SNS (USA): 1 MW pulsed;
SRF linac/accumulator
• J-PARC (Japan): 0.3 MW
pulsed; warm linac/RCS
• PSI (Switzerland): 1.4 MW
CW; cyclotron
10
Materials, Life Science
ADS
RIB
FRIB (CW)
SPIRAL2
RIBF(U)
SNS
TRIUMF
ISIS
LANSCE
1 kW FAIR(U)
RIBF(O)
ATLAS
10
100
In operation
PSI (CW)
SPES
102
Design value
IPNS
NSCL
GANIL
J-PARC RCS
Beam Power
1 MW
Nuclear, Particle
Physics
100 kW
FAIR(p)
AGS
CERN-PS
RIBF(U)
J-PARC MR
FNAL-MI
SPS
U70
10-1
10-2
10-2
10-1
100
10
102
Tevatron
103
104
Beam Kinetic Energy (E / A) [GeV/u]
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 3
FRIB Project at Michigan State University
Project of $730M ($635.5M DOE, $94.5M MSU)
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2008-12: DOE selects MSU to establish FRIB
2009-6: DOE and MSU sign corresponding cooperative agreement
2010-9 CD-1: conceptual design complete & preferred alternatives decided
2013-8 CD-2/CD-3a: performance baseline, start of civil construction & long lead procurement
2014-1: proceed with start of civil construction
Growth from more than 500 employees today at NSCL, MSU
More than 1200 registered user at NSCL user group and at FRIB user organization
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 4
Michigan State University
57,000 people; 36 sq mi; $1.8B annual revenue; 552 buildings
FRIB
FRIB Accelerator Complex Subsystems
ReAccelerator
Fragment separator
ECR ion source
QWR cryomodules
Target
RFQ
HWR cryomodules
Charge stripper
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 6
FRIB Accelerator Design Requirements
 Delivers FRIB accelerator as
part of a DOE-SC national user
facility with high reliability &
availability
 Accelerate ion species up to
238U with energies of no less
than 200 MeV/u
 Provide beam power up to
400 kW
 Satisfy beam-on-target
requirements
 Energy upgrade by filling vacant slots with 12 SRF cryomodules
 Maintain ISOL option
 Upgradable to multiuser simultaneous operation of light/heavy ions with
addition of a light-ion injector
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 7
FRIB Driver Linac Layout
Civil Design Complete and Ready for Construction
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 8
Accelerator Design Philosophy
 A full-energy linac driver to provide beam quality that user desires
• Full-scale CW linac using superconducting RF low-b cavities
 Meet stringent requirements demanded by experimental programs
• Up to 400 kW of beams are focused to a diameter of 1 mm (90%)
• Energy spread of 1% (95% peak-to-peak), and bunch length of < 3 ns
• Intensity range of 108 – diagnostics & controls requirements
 Support FRIB as a national scientific user facility
• Availability
• Maintainability
• Reliability
• Tunability
• Upgradability
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 9
Li Charge Stripper Tested with Beam Power
Successful LANL IS Restoration at MSU & Beam Power Test at ANL
 Liquid lithium film established with controllable thickness and uniformity
 LEDA Ion Source (IS) beam commissioned at MSU
• Beam commissioned at MSU after restoring with new cooling and power
supply system after more than 10 years of storage.
 Beam power tests on liquid lithium film successfully performed at ANL
• The film sustained ~200% of FRIB maximum power density deposition
T30705-TD-000450
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 10
Successful Prototyping of β0=0.085 QWRs
Significant Margin Allows High Machine Availability
FRIB 2nd generation β0=0.085
prototype QWR
Margin of about a factor of 3 in Q, 40% in E field
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 11
From Prototyping to Pre-production: β0=0.53 HWR
Cavities from Multiple Vendors Meet Performance Goals
FRIB 3rd generation β0=0.53 pre-production
HWR from industry
Industrial provider contracted for mass production successfully delivers cavities
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 12
SRF Acquisition Strategy Established
Active Vendor Engagement is Key to Procurement Success
 FRIB actively expanding vendor base; risk sharing to reduce cost
• Material (Nb, NbTi) order at final contracting stage with 3 providers
• Largest SRF cavity order to a domestic provider: 174 b0=0.53 HWRs
» 3 vendors delivered FRIB cavities; 7 vendors responded to recent HWR requestfor-proposal (RFP)
» 174 cavities awarded in 3 production steps of 2-cavity, 10-cavity, and mass
production (with 10% excess)
• b0=0.29 pre-production HWR: awarded to industryb=0.53 productiondesign HWR accepted
• b0=0.085 pre-production QWR: awarded to industry
by FRIB
 Monitoring and acceptance procedures established to assure quality
Normal etched
surface
Scanning electron microscope
for Nb metallurgical examination
Grain
removal,
whole grain
etched away
Etching
causing
shelves
b0=0.53 productiondesign HWR accepted
by FRIB
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 13
System Integration Proceeding: Rare Isotope
76Ga
Produced and Accelerated
2 charge states
accelerated in ReA
 Superconducting cyclotrons accelerate 76Ge
beam to 130 MeV/u; 76Ga produced;
stopped in the ANL gas cell; Charge
Breeding in the EBIT Source
 Re-acceleration in the ReA accelerator
• Using RFQ and β=0.041 cryomodules
 SRF technology mature for FRIB project
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 14
Cryomodule Prototyping Steps
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 15
MSU-Supported SRF Infrastructure
SRF Furnace Commissioned; SRF High Bay in Construction
 Heat treatment furnace
commissioned
 MSU funded SRF high bay
(~2500 m2) in construction
• 2 cryomodule test caves; 4 vertical test
dewars; expanded cleanroom &
chemistry facility
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 16
ASD Organization Ready for Scope Delivery
Area and Control Account Managers Integrating Scope
WFO contracts with
JLab, ANL, BNL, FNAL
Collaboration with
ANL, BNL, FNAL, JLab,
LBNL, ORNL, SLAC, RIKEN,
TRIUMF, INFN, IMP, INR,
THU, ESS
 WFO contracts in place
• JLab: 1) Cryoplant design and acquisition; 2)
SRF processing
• ANL: 1) Liquid lithium beam test; 2) SRF cavity
coupler design
• BNL: Plasma window performance
improvement
• FNAL: Beam position monitor diagnostics
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 17
Attracted World Experts in Key Areas
Aggressively Strengthened Technical Team Leadership
 Recruited top SRF scientists and pioneers
• A. Facco (INFN), K. Saito (KEK)
 Built cryogenics team to leverage SNS success
• F. Casagrande (ORNL), T. Xu (ORNL)
 Grouping of seasoned leaders in accelerator physics
and engineering
• N. Bultman (LANL), K. Holland (NSCL), M. Ikegami (JPARC), D. Leitner (LBNL), M. Leitner (LBNL), S. Lidia
(LBNL), F. Marti (NSCL), D. Morris (NSCL), S. Peng
(SLAC), E. Pozdeyev (BNL), T. Russo (BNL), J. Savino
(Cornell), Y. Yamazaki (J-PARC), B. Webber (FNAL), J.
Wei (BNL), Y. Zhang (ORNL)
• Latest additions: G. Wu (ANL), L. Hoff (BNL)
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 18
Extending Collaboration with WFO Contracts
Cryomodule (JLab); Solenoid (KEK); QWR Etching (TRIUMF)
 ANL
 RIKEN
• Helium gas charge stripper
• Liquid lithium stripper
• Beam dynamics verification; β=0.29 HWR  TRIUMF
• Beam dynamics design, physics modeling **
design; SRF coupler and tuner
 BNL
• SRF, QWR etching*
• Plasma window & charge stripper, physics  INFN
• SRF technology
modeling, database
 KEK
 FNAL
• SRF technology, SC solenoid prototyping
• Diagnostics, SRF processing
 IMP
 JLab
• Magnets*
• Cryoplant; cryodistribution design
 Budker Institute, INR Institute
• Cavity hydrogen degassing; e-traveler **
• Diagnostics
• HWR processing & certification*
 Tsinghua Univ. & CAS
• ReA6-I cryomodule design
• RFQ
 LANL
• Proton ion source, RFQ
 LBNL
• ECR coldmass design; beam dynamics**
 ORNL
• Diagnostics, controls
 SLAC**
• Cryogenics**, SRF multipacting**, physics
modeling
 ESS
• AP*
 DTRA
• RFQ power supply*
* Under discussion or in preparation
** Completed
Red: Active/actively planned WFO contract
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 19
ASD Designs Continue to be Reviewed
Progressing Towards Substantially Completing Technical Design as
Defined in the FRIB Final Design Plan
 Project reviews
• Accelerator Systems Advisory Committee (Ozaki) – 2/2011; 11/2011; 6/2012; 12/2012; 6/2013; 12/2013; 4/2014
• MSU Independent Reviews – 4/2012 (Holtkamp); 4/2014 (Harrison)
• Lehman Review – 3/2011; 9/2011; 4/2012; 10/2012; 6/2013; 6/2014
 Accelerator Systems external peer reviews and workshops since CD-1
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10/2010:
01/2011:
02/2011:
04/2011:
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05/2011:
07/2011:
08/2011:
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11/2011:
12/2011:
01/2012:
01/2012:
01/2012:
02/2012:
04/2012:
07/2012
09/2012:
09/2012
Accelerator Alignment External Review
Cryomodule Heat Source External Review
Machine Protection, Diagnostics Timing
Accelerator Lattice External Review
Diagnostics External Review
Electrical Grounding Workshop
Controls External Review
Cryogenic External Review
SRF External Review
Cryomodule (0.53) External Review
Front End External Review
Magnets External Review
Charge Stripper External Review
Installation, Pre-ops, Commissioning
RF & Power Supply External Review
Diagnostics Preliminary Design Peer Review
Personnel Protection System Workshop
Vacuum, Beam Dump, Collimator Review
Lithium Stripper Safety Review
MSU Independent Readiness Review
SRF Subsystem Review
Utility Interface External Review
Final Engineering Design Approach Review
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1/2014:
3/2014:
3/2014:
HP Source Magnet/Coldmass Workshop
FRIB Vacuum Workshop
ReA coupler, SRF fabrication, TDCM, ETCM
Magnet Shielding Workshop
RF and Power Supplies Intermediate
Personnel Protection System Intermediate
Artemis Ion Source and HV Platform
ReA6 Cryomodule Project Status Review
QWR Prototype Cryomodule Final Design
Lithium Charge Stripper Intermediate Design
MPS and GTS Intermediate Design Review
Alignment Intermediate Design Review
Cryodistribution Intermediate Design Review
HWR Cryomodule Intermediate Design
ASD Room-temperature Dipole Magnet Interm.
ASD Superconducting Magnet Final Design
ASD RT Optical Element Intermediate Design
Diagnostics Intermediate Design Review
MEBT Bunch Preproduction Review
Low-level Controls Intermediate Design
FRIB In-depth Technical Interface Series
Cryomodule Maintenance Workshop
Machine Protection Systems Workshop
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 20
ASD Integrated in Project Schedule
On Critical Path: CF REF, Cryoplant, Cryomodule, Comm.
Linac tunnel RFE
Cryoplant area RFE
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 21
Summary
 FRIB project is proceeding with scope, schedule and cost baselined
and ready for civil construction start
 Accelerator design strives to meet FRIB performance requirements
• Accelerator lattice footprint frozen since June 2011
• Detailed developments continue on critical components- charge stripper and SRF
• System designs optimized and value engineered for availability, maintainability,
reliability, tunability, and upgradability
 Acquisition strategy has been meeting performance, cost & schedule
requirements
 An excellent team is in place to lead accelerator systems delivery
 FRIB is looking for dedicated fellows & seasoned colleagues to join the
project, and also welcomes collaboration in all forms
 Thank you!
J. Wei, March 2014 Cryomodule Maintenance Workshop - 02, Slide 22