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INFN and the ILC S. Bertolucci, INFN

INFN and the ILC S. Bertolucci, INFN. INFN activities on ILC (accelerator side ). INFN groups (Milan, Legnaro, Frascati, RomeII) have provided relevant contributions to TESLA design and R&D on: Cryostats RF cavities development Photocathodes Beam diagnostic

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INFN and the ILC S. Bertolucci, INFN

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  1. INFN and the ILC S. Bertolucci, INFN

  2. INFN activities on ILC (accelerator side ) • INFN groups (Milan, Legnaro, Frascati, RomeII) have provided relevant contributions to TESLA design and R&D on: • Cryostats • RF cavities development • Photocathodes • Beam diagnostic • Engineering studies (Damping Rings layout) • Fast kickers • Remote CR

  3. Italy – INFN & TESLA • Cryomodules, Cavities and Ancillaries • R&D, 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

  4. 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

  5. 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

  6. Damping ring wiggler vacuum chamber electromagnetic Synchrotron radiation absorber

  7. 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 R&D 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

  8. 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 R&D 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.

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