LCLS-II Status

Report
LCLS-II Status
LCLS-II Scientific Opportunities Workshops
David Schultz
9-12 February 2015
LCLS-II Concept
Use 1st km of SLAC linac tunnel for CW SCRF linac
LCLS-II Scientific Opportunities
2
LCLS-II Project Scope
Accelerator
Superconducting linac: 4 GeV
Undulators in existing
LCLS-I Tunnel
New variable gap (north)
New variable gap (south), replaces existing fixed-gap und.
Instruments
Re-purpose existing instruments (instrument and detector
upgrades needed to fully exploit)
4 GeV SC Linac
In sectors 0-10
14 GeV LCLS linac still used North side source:
0.2-1.2 keV (≥ 100kHz)
for x-rays up to 25 keV
NEH
FEH
South side source:
1.0 - 25 keV (120 Hz, copper” linac )
1.0 - 5 keV (≥100 kHz, SC Linac)
LCLS-II Scientific Opportunities
3
Project Collaboration
LCLS-II Scientific Opportunities
•
•
•
Cryomodule engineering/design
Cryomodules: ~1/2 of total
Liquid helium distribution system
•
•
Cryomodules: ~1/2 of total
Cryoplant design and procurement
•
•
Undulators
e- gun & associated injector systems
•
•
Undulator Vacuum Chamber
Undulator design: vertical polarization
•
•
Cryomodule R&D, prototype support
e- gun option
4
LCLS-II Cryomodules
35 Cryomodules, 12.6 m long, 1 m diameter
• LCLS-II Cryomodule follows the ILC design (shown)
• 8 SC cavities and a SC quadrupole magnet
LCLS-II Scientific Opportunities
5
Baseline Deliverables
Cu Linac
4.0 GeV
SC Linac
High Rep Rate
0
5
Legend
Cu SASE
Cu Self Seeded
High Rep Rate SASE
Self Seeded (Grating)
LCLS-II Scientific Opportunities
10
15
Photon Energy (keV)
20
25
 Hard X-Ray Source:
 1-5 keV w/ 4 GeV SC linac
 Up to 25 keV with LCLS Cu Linac
 Soft X-Ray Source:
 250 eV-1.2 keV w/ 4 GeV linac

200 eV requires <4 GeV
6
Project Timeline
•
BESAC subcommittee report
July 2013
•
LCLS-II starts a response to the report
July 2013
•
Mission Need Statement signed
Sep 2013
•
Approval, CD-1
Jun 2014
•
Purchase niobium materials for cavities
Oct 2014
•
4.2K refrigeration plant award
Apr 2015
•
Prototype accelerating modules test
Dec 2015
•
Remove copper linac, first km
Jun 2016
•
All cryomodules at SLAC
Sep 2018
•
Cryoplant installed
Dec 2018
•
First Light
Jan 2020
•
DOE Critical Decision 4 (Level 1)
Sep 2021
LCLS-II Scientific Opportunities
7
The LCLS-II Project: an extraordinary confluence of
• Institutional core competencies across the collaboration
• Talented, experienced scientists and engineers
• Strong management support at SLAC and the Partner Labs
• Outstanding support from DOE
LCLS-II Scientific Opportunities
8
In Closing
• LCLS-II goals have been changed radically by the
reconfiguration of the project
• High average brightness
• The change had to come now- or else beyond 2030
• DOE has made a commitment to the long-term future of
SLAC as the home of the nation’s large-scale FEL
research facility
• I believe that DOE understands
• The scope of LCLS-II and its performance capabilities
• What LCLS ought to be in the long term
• Your input will determine the future capabilities of LCLS-II
LCLS-II Scientific Opportunities
9

similar documents