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Injector Long-Lead Procurements: Cost & Acquisition II

This document provides a detailed description of the injector components, risk assessment, FY 03-04 prototyping, and summary.

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Injector Long-Lead Procurements: Cost & Acquisition II

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  1. INJECTOR Long-Lead Procurements Cost & Acquisition IIJohn Schmerge, SLACMay 21, 2003 • Description of Injector Components • Risk Assessment (Overall low technical risk) • FY 03-04 Prototyping • Summary John Schmerge, SLAC

  2. Cathode Load Lock RF Photocathode Gun L I N A C H O U S I N G S I D E W A L L Low Energy Diagnostics e t e r o l e w / 3 0 d e g p r o t a t i o n s M A G N E T I C e c t r o m S p S C 2 X - Y C o r r e c t o r SLAC 3-m Accelerator Sections 1 M P E E B 1 V D 0 L E O A N H V U T G 1 A F S C 1 0 ' H I G H R E 1 V Profile Monitors, typ. M S L 2 C A 1 Y V C - X F 1 1 C 2 0 S ' C L F A I C N C L o w - E D u m p E A L E C E/O Diagnostic (Bunch shape & timing) R A H T O O L I N A C H O U S I N G S I D E W A L L R U 1 3 ' - 3 . 2 7 " S I N L G I N S Transverse RF Cavity (Longitudinal diag.) I A D C 3 E C E 2 V S M C L W A P 2 V 1 O B M A R C T H L O 3 L E 1 M E 0 P R V ' 4 B L A C E A C S V C N Wire Scanners (Emittance & energy) E T L E L R I A T G 7 7 ' ' H H I I G G H H O H R T S O 5 U M P 6 R C B S C 5 E C 3 S M M 4 M C 2 O P R B T O 1 D DL1 Bend & Transport 0 I E F Q 2 I 0 C E 2 Q O A E 6 T M R 7 I P E C B K O S C I N K 3 F R T 3 T R 0 O E E/O Diagnostic O Q L I 4 0 N E 8 1 7 Q A C M 0 1 0 ' H I G H 4 S S P C R W B T O 8 M P B 2 0 S W 5 R T O L I N A C H O U S I N G S I D E W A L L L I N A C H O U S I N G S I D E W A L L 0 1 C 1 S 0 E P E N . 2 1 - 1 3 P E N . 2 0 - 1 6 C 5 0 P E N . 2 0 - 1 5 S 6 M R W 9 C T P E N . 2 0 - 1 7 4 C 9 1 O M 0 S M 1 2 " B C 0 P B M B 3 4 9 . 4 Q 4 2 Q 1 2 0 0 1 8 0 1 0 1 2 2 M M S 1 2 A C C E L R T U B E M M 1 A C C E L 1 0 ' 0 M 3 A C C E L E R A T O R 1 0 ' A C C E L 1 C 1 0 ' W Q Q T C B Q M O P P S O S 9 B B E P R B T O 0 7 1 1 R 3 " 0 M S E C T I O N 2 0 - 8 C T S E C T I O N 2 0 - 8 A M R P S E C T I O N 2 0 - 8 B V A L V E P 1 O I M B S E C T I O N 2 1 - 1 B R E 0 T U B E U T M D 9 0 P B H E A - P E Q M Q M O T R 1 0 E 0 0 0 0 C M 6 O P E P - 2 H E / L E B Y P A S S 2 3 4 1 Q B B P M 1 3 T L E S B E A M D R I F T S E C T I O N A C C E L E R A T O R S E C T I O N S L I N A C H O U S I N G S I D E W A L L L I N A C H O U S I N G S I D E W A L L Straight Ahead Spectrometer & Diag. LCLS Injector John Schmerge, SLAC

  3. V T A R C E U A U T S 2 M M E P N U F R F C C a v . 1 , Y A G M A G T N E T I C S C 1 X - Y M C S p e c P t r o . H S A 1 S V A L V E M B E E 0 1 R M M C M 2 P P 1 B S C 2 B X - Y M B P M E S S A L B M Y E C O L B G N O L L E S W L N A D B P M O S U F C 2 , Y A G S O N P E O G G H M R B C B T F E S S L L A E P R H Y L A O O C O L O L W L D S S E U F R P I R N O E M C V A A T L H V O E D E U G H A T V E A V L L A L M V E E T S A L 1 . 0 M E T E R Low Energy Region Diagnostics Low Energy Spectrometer Laser Optics Cathode Load Lock RF Gun Emittance Compensating Solenoids John Schmerge, SLAC

  4. Gun with Load Lock UHV All Metal Gate Valves Treatment / Transfer Chamber Stage for Cathode Insertion / Alignment High QE Uniform Emission Fast cathode replacement Vacuum Pumps Cathode Holder RF gun John Schmerge, SLAC

  5. Load Lock Specifications John Schmerge, SLAC

  6. GTF Gun 0-mode Frequency shift kHz p-mode Frequency shift kHz John Schmerge, SLAC

  7. RF Gun GTF Gun LCLS GUN MODIFICATIONS • Dual RF feed • 120 Hz cooling • Mate to Load Lock • Motorized tuners with readback in both cells • Symmetrized field probes in both cells John Schmerge, SLAC

  8. Low Energy Magnet Specifications John Schmerge, SLAC

  9. Solenoid John Schmerge, SLAC

  10. Diagnostic Specifications – Charge Monitors John Schmerge, SLAC

  11. Injector Linac Sections John Schmerge, SLAC

  12. Accelerator Specifications John Schmerge, SLAC

  13. Injector Diagnostics I John Schmerge, SLAC

  14. Prototype EO Device with Wakefield Plug Measurement Position Removed Position EO Crystal Electro-Optic Effect Wakefield Mitigation Sub ps resolution Use available Green laser Laser Beam John Schmerge, SLAC

  15. Bunch Length and Phase Diagnostics John Schmerge, SLAC

  16. RF Transverse Deflector John Schmerge, SLAC

  17. BPM and Steering Magnet Specifications John Schmerge, SLAC

  18. Injector Shield Wall John Schmerge, SLAC

  19. Wire Scanners John Schmerge, SLAC

  20. Wire Scanner Mount John Schmerge, SLAC

  21. Diagnostics Specifications - Profile Monitors John Schmerge, SLAC

  22. Injector Diagnostics II John Schmerge, SLAC

  23. Magnet Specifications John Schmerge, SLAC

  24. PED Prototyping in FY03-04 • Gun Prototyping: • Magnesium Cathode Performance (QE, thermal emittance, etc.) • RF Pulse Shaping (reduces gun average power by factor of 3) • Emittance Measurement with Temporal Laser Pulse Shaping • Injector Diagnostics: • E/O Bunch Length & Timing Diagnostic (sub-ps resolution & RF controls) • Slice Emittance at High-Charge (slice & projected, wakefield effects, RF kicks) • Drive Laser Prototyping: • Transverse Profile Flattening (Aspheric Optic) • Temporal Pulse Shaping (Frequency Domain at SLAC, DAZZLER at SPARC INFN) • IR&UV FROG Diagnostics John Schmerge, SLAC

  25. Summary • Most injector components based on existing engineering designs to support FY 05 long lead procurement • Low technical risk except • Load Lock • RF Gun • RF phase monitor • EO bunch length monitor • Prototyping efforts address high risk components • Prototype Load Lock in FY 05 • RF Pulse shaping in FY 03 at GTF • X-band phase monitor characterization in FY 03-04 at SLAC • EO prototype in FY 03-04 at GTF John Schmerge, SLAC

  26. Dipole John Schmerge, SLAC

  27. Quadrupole John Schmerge, SLAC

  28. Quadrupole John Schmerge, SLAC

  29. XY Corrector John Schmerge, SLAC

  30. BPM John Schmerge, SLAC

  31. Toroid Housing John Schmerge, SLAC

  32. Injector Dipole Magnet Alignment and Field Tolerances DB/B : RMS regulation of power supply b1/b0 : Relative quadrupole (4-pole) field b2/b0 : Relative sextupole (6-pole) field b2/b0 : Relative octupole (8-pole) field John Schmerge, SLAC

  33. Injector Quadrupole Magnet Alignment and Field Tolerances DB/B : RMS regulation of power supply b2/b1 : Relative sextupole (6-pole) field at r = 1 cm b5/b1 : Relative dodecapole (12-pole) field at r = 1 cm John Schmerge, SLAC

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