Transcript UndulatorFinalChance4Input.ppt

What this is
• First
– Answer basic questions needed before going
forward with the long-lead procurements
• Magnets, Poles, Ti Strongback
• Second
– Answer other essential question so that we
can finish our planning for the undulator
system
• Orientation, interfaces, installation scheduling, etc.
What this is NOT
• A Workshop
• A place to give a infinite stream of
presentations
– (These are necessary, but they should not be
the focus. The focus should be the discussion
and coming to conclusions.)
So let’s
• Take time for discussion
• Take time to do the calculation
• Make well informed decisions and go
forward
Undulator Topics
• FEL Commissioning
– Starts with initial fiducialization/alignment
– Then with beam we worry about
• Damaging things
• Having enough diagnostics to do the job
• Having enough variables to do the job
Gap: LLP Ti
• Impacts Everything
– K -> Beam energy -> gain length -> power
– Undulator spacing
• Clearance Issue
– Need room for safe remote horizontal
translation of the undulators
• Desirable feature for
– FEL Tuning
– Prevention of radiation damage
– Tapering/Phasing
Other Impacts to Ti
• Geometrical
– Orientation
– Location of components
• Eg. Alignment components
– This is all system integration
What We Want Out of This
• Clear Statement on Commissioning Plan
– How and when will we use the roll away
feature
– How and when will we use variable strength
quads and correctors
• Gap -> Therefore
– Undulator Spacing
• Ranges and Tolerances
– Horizontal motion of undulator
– Quad and corrector setability and range
– Quad transverse positioning
What We Want Out of This
• Orientation of the Undulator
Organization
• Who Decides What
– We have
• ANL: We build this system and provide input to
decisions
• SLAC: The device/system ultimately is “owned” by
SLAC
• UCLA: Does Calculations and provides input
– So Who Makes the Final Decision?
• John Galayda, Mark Reichanadter, and myself
– But we rely on input from others
• Heinz-Dieter Nuhn is the focal point for this input
Organization