keith o. hodgson ssrl director
DESCRIPTION
Basic Energy Sciences Advisory Committee. Brief Update on the Linac Coherent Light Source - LCLS. SASE Physics and Simulations. Undulator Prototype. Keith O. Hodgson SSRL Director. February 26, 2002. LCLS Project - Major Collaborators. UCLA. LLNL. - PowerPoint PPT PresentationTRANSCRIPT
Keith O. HodgsonKeith O. HodgsonSSRL DirectorSSRL Director
Brief Update on the Linac Coherent Light Source - LCLSBrief Update on the Linac Coherent Light Source - LCLS
February 26, 2002February 26, 2002
Basic Energy Sciences Advisory Committee
Undulator Prototype
SASE Physics and Simulations
LLNLUCLA
LCLS - a new facility engaging a broad range of experience and capabilities drawn from the synchrotron, laser and high energy physics communities providing x-ray photons with extraordinary properties
LCLS Project - Major Collaborators
Recent Milestones and Developments
April, 2001 John Galayda joins SSRL/SLAC as Project Director
June, 2001 CD0 (Statement of Mission Need) Approved by DOE
Fall, 2001 Technical Progress on Photocathode Gun
January, 2002 DOE Guidance on Scope and Schedule
February, 2002 President’s FY2003 Budget Includes LCLS PED Funding
February, 2002 LCLS Science Advisory Committee Meets and Formulates Strategy for Framework of Experimental Program Development
April, 2002 DOE Lehman Project Review (4/23-25)
Recent Technical Progress on Photocathode Gun
• A prime determinant of output power in X-FELs is performance of photocathode guns
• Gun Test Facility (GTF) at SSRL has demonstrated performance consistent with 0.6 m slice emittance at 0.2 nC
• Computer models predict that the GTF gun, providing this same beam to the LCLS, will produce a 140 fsec, 3-4 GW pulse at 1.5 Angstrom
• A good option for commissioning the LCLS with low charge and “moderate” power (LCLS design goal is 9 GW)
MOD1
KLY-1
GTFLASERROOM
GTFRF GUN
SSRL BOOSTER RING
MOD2
KLY-2MOD3
KLY-3
GTFCONTROLROOM
8 m LaserTransport System
SSRL Injector Vault
DOE Guidance on Scope and Schedule
• Scope now being developed for LCLS includes the facilities necessary to characterize the LCLS beam and test the ability to:
filter focus synchronize with a pump laser split/delay the x-ray beam for pump/probe experiments monochromatize
• At 1/02 meeting of DOE-BES and SSRL/LCLS management - guidance provided on construction project scope that explicit scientific instruments would not be included
• Approach enables more accurate definition of cost (experiments are more than 5 years away), of performance metrics for completion of construction project , and for flexibility in defining and funding the science program
Leads to developing new strategy for LCLS experimental program and role of LCLS Science Advisory Committee (SAC)
LCLS Project Schedule
Schedule includes 2 years of project engineering and design (PED) prior to 3 years of construction, leading to operation in Fall, 2007
President’s FY2003 Budget Request
• PED funding proposed in FY2003 President’s Budget would begin work on engineering and detailed design
• With design about 30% complete, and successful validation and authorization from DOE construction review management, next step will be construction
• TEC range $165M-$225M
Experimental Science Program for LCLS and the LCLS Scientific Advisory Committee
• SAC strongly endorsed principle of open, peer-reviewed access and competition based on science for decision making and operation in a general user (not a PRT or CAT) model where SSRL coordinates activity (peer review) and technical management/general operation for scientific teams
• LCLS SAC will be reformulated as external advisory and oversight committee to consider proposals for LCLS instruments and science
• New SAC is being chaired by Prof. R. Falcone of UC Berkeley
• At last meeting of current SAC (2/8/02), framework began to be formulated for experimental program approach
PEDPED Construction Construction
FY02 03 04 05 06 07
O N D J F MA M J J A S O N D J F MA M J J A S O N D J F MA M J J A S O N D J F MA M J J A S O N D J F MA M J J A S
Planning Workshop
Funding for instruments
DOE accepts proposals for instruments
Call for LOI and R&D plans
Review proposals and approve submissions
• Proposed framework and timeline for evolving LCLS science program
Summary
• The LCLS will be a source of unprecedented brightness and coherence, delivered in sub-picosecond pulses
• It is the most cost and time effective route to a hard x-ray free electron laser facility
• It is based on technology and know-how available at the collaborating institutions
• Takes advantage of the availability of the SLAC linac• Builds on activities of DOE laboratories and universities in next
generation R&D and laser physics and science • R&D activities coordinate well with efforts in Europe and plans
for future XFEL facility at DESY• Will be an extraordinary new scientific tool in 2007 and beyond
For further information please contact:
Keith Hodgson, SSRL Director John Galayda, LCLS Project [email protected] [email protected]: 650 926-3153 Fx: 650 926-4100 Ph: 650 926-2371 Fx: 650 926-4100