Maury Tigner

Hans A. Bethe Professor of Physics Emeritus

134 Newman Lab
Cornell University
Ithaca NY 14853

(607) 255-4952

B.S., 1958, Rensselaer Polytechnic Institute. Ph.D, 1964, Cornell University. Research Associate, Cornell University, 1964 -68; Senior Research Associate, Cornell University,1968-77; Professor, Physics, Cornell University, 1977-94. Professor Emeritus, Physics, Cornell University, 1994-present. Visiting appointments at: Institute of High Energy Physics, Beijing; Chinese Academy of Sciences; DESY, Germany. Director, Laboratory of Elementary-Particle Physics, Cornell University, 2000-present . Fellow, American Academy of Arts and Sciences. Member, National Academy of Science.

Research Areas
Accelerator physics; superconductivity

Current Research

R & D for the International Linear Collider (ILC).
R & D for the Energy Recovery Linac (ERL).

  • Spotlight

    Michael Ehrlichman

    Michael Ehrlichman, graduate student, is working in David Rubin's group investigating intrabeam scattering and other collective effects in high-current, low-emittance storage rings. His research methods consist of developing beam dynamics simulations and conducting experiments with the Cornell Electron Storage Ring (CesrTA). As the density of particles in a beam increase, many important beam parameters become dominated by multi-particle effects. Intrabeam scattering is one such effect that describes collisions between the particles within the beam bunch. The result is that the size of the bunch depends on its charge (beam current) in a particular way. Another important collective effect is the current-dependence of the betatron tunes. Interactions between the bunch charge and vacuum chamber walls effect both the coherent tune and the spread of tunes within the bunch. As tune varies with beam current, so can beam size, as the particle tunes cross machine resonances driven by nonlinearities in the accelerator guide field. So while it is straightforward theoretically to evaluate the consequences of various collective effects, it is difficult to distinguish them experimentally.
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