SwissFEL Laser Heater Review

Friday 26 Apr 2013, 08:30 → 17:15 Europe/Zurich

OHSA/E13 (PSI)

Minutes FEL-PM16-063-03-LH_kickoff_meeting_minutes.pdf

Paper FEL-PM16-031-05-Requirement_Specifications_Laser_Heater.doc FEL-PM16-031-05-Requirement_Specifications_Laser_Heater.pdf

1 Welcome and general introduction

- Parameter summary (beam and laser) - Layout building situation and environment parmeters - Layout machine lattice at the LH (overview of all components + 2D model - Integration of laser transfer in the building - Illustration aspects (task distribution overview) - Scheduling and comissioning aspects

Speaker: Marco Pedrozzi (Paul Scherrer Institut)

Slides FEL-PM16-061-01-GunLaserHeater_Kockoff_meetinf_introduction.ppt

2 LH specifications and beam dynamics

- Beam heating requirements - Operation range (max-min charge, max-min energy) - Undulator requirements - Optics and chicane specifications (dipoles, axis separation, R56)

Speaker: Marco Pedrozzi (Paul Scherrer Institut)

Slides LaserHeater-Meeting_BD-FEL.ppt

3 "Standard" Electron diagnostics

- Screen monitors specifications & options (interfacing with photon diagnostics) - BPM (alignment survey along the undulator and feed back) - BAM (synchronization survey and feed back)

Speaker: Rasmus Ischebeck (Paul Scherrer Institut)

Slides Laser_Heater_Diagnostics.pdf

10:00 Coffee break

4 Undulator design and engineering (+ discussion)

- Presentation of design status - presentation (Daresbury) - Discussion/verification interfacing with beam (magnetic design) - Discussion interfacing with mechanics (positioning, supports and alignment) - Discussion interfacing with controls (motors and encoders)

Speakers: Mr NEIL THOMPSON (STFC), Mr barry fell (STFC)

Paper 256-11110_(draft_14-01-13).pdf

Slides RFS-1013-prs-002_v1_swiss-fel_26-04-13.pptx SwissFEL_Laser_Heater_Undulator_Review_April_2013.pptx

12:00 Lunch break

5 Laser system and transfer line

- Presentation laser system and transfer line specifications/concept - Presentation laser optics & concept for the coupling (geometry & chamber constraints)

Speaker: Carlo Vicario (Paul Scherrer Institut)

Slides LH-diagnostics.pptx Vicario_LH.pptx

6 Laser diagnostic requirements

Suggestion: - one presentation from PSI - one presentation from our Swedish colleagues, concepts and design based on previous experience + discussion To be covered here: - Standard laser diagnostics - Energy - Alignment/pointing survey (virtual waist image) Overlap diagnostics - Transverse overlap setting (screens) + monitoring and feed back (pointing survey with 4 quadrant diodes or camera?) - Longitudinal overlap rough and fine adjustment(the most critical aspects? Survey options: BAM+LAM, EOM for survey?)). - Support system laser optics and diagnostics (optical tables, protection box,..) - Discussion about task distribution & Role of Lund University.

Speakers: Carlo Vicario (Paul Scherrer Institut), Dr Volker Ziemann (Upsala University)

Slides 2013-04-22_DESY_LH_MiniWorkshopFinal.pptx vz-swissfel-130426.pdf

7 Vacuum system

- presentation or included in point 1)? (L. Schulz) - Presentation of vacuum chamber basic concept (motorization requirements, laser coupling, chamber size,...)

Speaker: Lothar Schulz (Paul Scherrer Institut)

8 Summary

- Decisions - Task distribution - Open points - Next steps