The traditional approach to accelerator optics, based mainly on classical mechanics, is working excellently from the practical point of view. However, from the point of view of curiosity, as well as with a view to explore quantitatively the consequences of possible small quantum corrections to the classical theory, a quantum mechanical formalism of accelerator optics for the Dirac particle is b...

It is shown that a gravitationally collapsing black hole acts as an ultrahigh energy particle accelerator that can accelerate particles to energies inconceivable in any terrestrial particle accelerator, and that when the energy E of the particles comprising the matter in the black hole is ∼ 10 GeV or more,or equivalently the temperature T is ∼ 10 K or more, the entire matter in the black hole w...

LHC Project Report 1135 CERN, CH-1211 Geneva 23 Switzerland 1) LAL, Univ. Paris-Sud, CNRS/IN2P3, Orsay, France. CERN, Geneva, Switzerland Presented at EPAC'08, 11th European Particle Accelerator Conference, Genoa, Italy June 23-27, 2008 in 2p 300 39 26 83 , v er si on 1 9 Ju n 20 09 Author manuscript, published in "11th European Particle Accelerator Conference (EPAC08), Genoa : Italie (2008)"

081002-1 The interaction between a low-density electron cloud in a circular particle accelerator with a circulating charged particle beam is considered. The particle beam’s space charge attracts the cloud, enhancing the cloud density near the beam axis. It is shown that this enhanced charge and the image charges associated with the cloud charge and the conducting wall of the accelerator may hav...

The particles and energies commonly used for medium energy nuclear physics and heavy charged particle radiobiology and radiotherapy at particle accelerators are in the charge and energy range of greatest interest for space radiation health. In this article we survey some of the particle accelerator facilities in the United States and around the world that are being used for space radiation heal...

The accelerator-based particle physics program in the US is entering a period of transition. This is particularly true at Fermilab which for more than two decades has been the home of the Tevatron Proton-Antiproton Collider, the World’s highest energy hadron collider. In a few years time the energy frontier will move to the LHC at CERN. Hence, if an accelerator-based program is to survive at Fe...