PETRA III

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PETRA III

• K. Balewski

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PETRA III
Parameters - energy 6 GeV - current 100 mA -
emittance 1 nmrad - straight sections 9 -
undulators 13 - undulator length 2, 5, 20 m
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PETRA IIIConversion of PETRA II (2304 m circ.)
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PETRA IIIOptics old octant
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Supports for Monitors
Korrekturdipole
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Exchange of radiation damaged coils
Ordered the new coils at different companies
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PETRA III damping
wiggler
ex 4 ? 1 nmrad

• Damping wigglers
• B 1.5 T
• l 0.2 m
• h 0.025 m
• Ltot 80 m (2x40m)

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Gerades Stück
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Wiggler Section
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Commissioning Safety cont.
Dumping the beam by switching of the rf! If this
is fast enough has to be verified!
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Commissioning Safety cont.

• Safety system
• Failure causes sin or cosine like distortion of
  orbit in damping wiggler section

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Commissioning Safety cont.

• Safety system
• Failure causes sin or cosine like distortion of
  orbit in damping wiggler section
• Calculate power load on each absorber (most
  prominent absorber no. 7)
• Limit for orbit distortion 1mm (excluding
  alignment errors) for 200 mA
• Beam has to be dumped for orbit deviations larger
  than 0.7 mm (o.k.)

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PETRA IIIOptic new octant
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PETRA IIIhardware changes
BPM
Magnets Girders
Valve
Vacuum system
Undulatoren
Corrector magnets
Power supplies Water cooling
new octant copletely new hardware
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Prototype ordered
500
Lmax 660 mm
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Corrector magnets
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• Multibunch feedback
• detector
• two transverse amplifiers
• one longitudinal amplifier
• vacuum system
• bought material for chamber production
• prototypes of dipole chamber for old octant
• orbit feedback
• prototype for orbit measurement
• boards for development of digital electronics

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PETRA IIIschedule

• Schedule
• submisson of TDR Feb. 2004
• selection of the phase I beamlines end of 2004
• start of RD, prototyping, tendering and
  ordering of components mid
  2004
• final decision on beamline design 2005/2006
• start of reconstruction July 2007
• installation of first beamlines mid 2008
• start of storage ring commissioning end of 2008
  
• start of user operation in 2009