David Robin

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• David Robin

Welcome to the committee Superbend project
status What we hope to accomplish from the review
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Why superbends
Demand for more high brightness, high energy
x-ray sources from 10 to 25 KeV

• Approach
• Replace 3 normal conducting, combined
  function,1.3 Tesla dipoles with 3
  superconducting 5 Tesla dipoles (superbends)
  and 6 quadrupoles
• Result
• Provide up to 12 high brightness, high-energy
  beam lines for users (4 from each superbend)

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Flux and Brightness
Brightness
Flux
1017
1014
5 Tesla Superbend
1016
5 Tesla Superbend
1013
Brightness (ph/sec mm2 mrad2 0.1 band)
Flux (ph/sec mrad 0.1 band)
1.3 Tesla Normal Bend
1.3 Tesla Normal Bend
1015
1012
1011
1014
0 5,000 10,000 15,000
20,000
0 5,000 10,000
15,000 20,000
Photon Energy (eV)
Photon Energy (eV)
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Location of the Superbends
The modified sectors will be 4, 8 and 12
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What has happened up to now

• Initial idea of placing a superconducting magnet
  in a triple bend achromat, A. Jackson (ALS) and
  V. Joho (SLS) (1993)
• AFRD Supercon and Wang NMR successfully build and
  test prototype superconducting coil and core of a
  5T, 10o bending dipole (1995-1998)
• Superbend project team formed (kickoff meeting
  September, 23 1998)
• Passed physics review (December 1998)
• Based upon recommendations of a critical energy
  review committee (Chaired by B. Feinberg) ALS
  director announces that the project will proceed
  with 3 x 5T superconducting dipoles (February
  1999)
• Machined first of 3 vacuum chambers in
  preparation for installation of the superbends
  (June 1999)
• Preparation for a technical cost and schedule
  review (July 1999)
• Responding to the recommendations from the
  physics review committee
• Testing key components of the cryostat system
• Bottoms-up cost and schedule estimate
• Several significant design improvements

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Superbend Project Team
David Robin (Project Leader) Jim Krupnick
(Project Manager) Ross Schlueter (Lead
Engineer) Joe Harkins (Deputy Project Manager)

• Project Engineers
• Alan Biocca Egon Hoyer
• C. Corradi Steve Marks
• Jan De Vries Paul Pipersky
• Tom Henderson Art Ritchie
• Jim Hinkson John Zbasnik

Consultants Shlomo Caspi Hiroshi
Nishimura Winni Decking (DESY) Alan
Paterson Etienne Forest (KEK) Greg
Portmann Michael A. Green Clyde Taylor Michael
I. Green Henri Zyngier (Orsay) Alan Jackson
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What we want to accomplish from this review

• We would like to begin procurement of the first
  magnet/cryostat assembly following this review
• Based upon the magnet design and testing results
  as well as the project cost and schedule
  presented we hope you will be able to say that
• we are prepared to begin procurement of the
  first magnet/cryostat
• assembly
• we have plans that will result in a
  magnet/cryostat that will meet the
• needs of the ALS
• we have a reasonable cost and schedule for the
  project
• This will allow for release of UCDRD funds that
  are vital for procurement of the first
  magnet/cryostat assembly