IBS suppression lattice: 3 years, 17 people

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IBS suppression lattice 3 years, 17 people

• Mei Bai, Don Bruno, Peter Cameron, Roger
  Connolly,
• John Cupolo, Al Della Penna, Alexei Fedotov,
  George Ganetis, Vladimir Litvinenko, Yun Luo,
  Nikolay Malitsky,
• Aljosa Marusic, Christoph Montag, Vadim Ptitsyn,
• Todd Satogata, Steve Tepikian, Nick Tsoupas

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Ramp 1
87 Yellow, 70 Blue
Ramp 2
6 bunches per ring 3 bunches 1e9 Au 3 bunches
5e8 Au
88 Yellow, 93 Blue
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De-bunching Yellow is slightly better
Bunchlengths Yellow bunches are shorter And
stay shorter
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Full intensity bunches Horizontal Normalized
Emittance
Yellow is smaller and stays smaller
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Full intensity bunches Vertical Normalized
Emittance
Yellow is smaller and stays smaller (Blue
measurements were noisy)
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Conclusions (preliminary)

• IBS suppression lattice has advantages in all
  three degrees of freedoms
• Emittances are lower and grow slowly (note that
  IBS 1/?3/2)
• Bunch length is shorter and de-bunching is lower
  (consequence of stronger focusing, i.e. smaller ?
  -gt large energy acceptance, shorter bunches)

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