INFN and the ILC

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INFN and the ILC S. Bertolucci, INFN
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INFN activities on ILC (accelerator side )

• INFN groups (Milan, Legnaro, Frascati, RomeII)
  have provided relevant contributions to TESLA
  design and RD on
• Cryostats
• RF cavities development
• Photocathodes
• Beam diagnostic
• Engineering studies (Damping Rings layout)
• Fast kickers
• Remote CR

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Italy INFN TESLA

• Cryomodules, Cavities and Ancillaries
• RD, Construction and Commissioning
• Cost Optimization and Industrial Studies
• Damping Rings
• Layout and Engineering Design
• Ultra-fast Multi-frequency RF Kickers
• Cost Optimization and Industrial Studies
• Beam Diagnostics
• OTR, DF, Bunch Length
• Photocathode preparation and handling
• Polarized positron source studies

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From OTR angular distribution beam energy and
energy spread can be obtained in any position
along the Linac. This measurement has been used
to verify energy stability along the macropulse
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Any intercepting device has a finite limit in the
energy density deposited by the beam that can be
sustained. No device can support the full TESLA
beam, but even with a single TTF micropulse, our
OTR screen can be destroyed if the beam is
focalized to 10-20 mm. New non-intercepting
devices must be developed for the next generation
of high power, low emittance beams. Diffraction
Radiation (DR) can be used for many applications.
DR is emitted when a beam passes through a hole
in a metallic screen. We used, for the first time
in a clean and unbiased way, the Coherent
Diffraction Radiation(CDR) for bunch length
measurement
CDR intensity as function of slit aperture
confirms our theory of finite screen and near
field effects
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Damping ring wiggler
vacuum chamber
electromagnetic
Synchrotron radiation absorber
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INFN activities on ILC (detector physics )

• A small (but growing) community has actively
  participated (and continues to participate) to
  the series of ECFA/DESY and ECFA studies on
  Physics and Detectors for a Linear Collider.
• Some detector RD is currently underway in Italy
  on high granularity e.m. calorimetry, vertex
  detectors, luminosity monitors and muon
  detectors.
• Lots of expertise will soon be freed by the
  completion of the LHC experiments construction
  (magnets, detectors, etc)
• INFN groups are part of the EUDET FP6 I3

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Conclusions

• INFN believes that the ILC is a historical
  opportunity to make the next step in the field,
  based on a truly global project.
• INFN will be investing resources to support a
  brisk RD program on the accelerator and
  detectors.
• INFN will have a key role in the promotion of
  the scientific and financial case with the
  Italian Government.
• INFN will actively pursue collaboration
  agreements with all the major actors of the ILC
  enterprise.