F. Ruggiero

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The Department of Defense (DoD) has an urgent need to both understand and predict the effects of high-altitude (z > 10 km) turbulence (HAT) on systems that operate at or propagate through those altitudes. Examples of systems affected by HAT include surveillance aircraft such as the U-2 and the unmanned Global Hawk, developing weapons systems such as the(More)
The transverse mode coupling instability due to localized structures of a storage ring, like RF-cavities, is investigated in presence of radiation damping and quantum excitation for both synchrotron and betatron oscillations. Replacing the Vlasov equation by the Fokker-Planck equation, the longitudinal dynamics can only be described in terms of transition(More)
  • F. Ruggiero
  • Conference Record of the 1991 IEEE Particle…
  • 1991
The reduction of dynamic aperture for LEP 200 caused by an asymmetrical RF distribution is investigated by particle tracking. In particular, the dependence of this effect on synchrotron tune is studied under different conditions in case of breakdown of an RF unit. The localization of the accelerating cavities and the consequent discontinuous replacement of(More)
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