A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Yakimenko, V.

Paper Title Page
TUFO03

 Status of High Current R&D Energy Recovery Linac at Brookhaven National Laboratory 

  • D.Kayran, I. Ben-Zvi, D.S. Barton, D. Beavis, M. Blaskiewicz, J.M. Brennan, A. Burrill, R. Calaga, P. Cameron, X. Chang, R. Connolly, D.M. Gassner, H. Hahn, A. Hershcovitch, H.-C.Hseuh, P. Johnson, J. Kewisch, R. Lambiase, V.N. Litvinenko, W. Meng, G. McIntyre, T.C. Nehring, A. Nicoletti, D. Pate, J. Rank, T. Roser, T. Russo, J. Scaduto, K.S. Smith, T. Srinivasan-Rao, N.W. Williams, K.-C. Wu, V. Yakimenko, K. Yip, A. Zaltsman, Y. Zhao
    BNL USA
  • H.P. Bluem, A. Burger, M. Cole, A. Favale, D. Holmes, J. Rathke, T. Schultheiss, A. Todd
    AES USA
  • J. Delayen, W. Funk, L. Phillips, J. Preble
    Thomas Jefferson National Accelerator Facility USA

We present the design and the parameters of a small test Energy Recovery Linac (ERL) facility, which is under construction at Collider-Accelerator Department, BNL. This R&D facility has goals to demonstrate CW operation of ERL with average beam current in the range of 0.1 - 1 ampere, combined with very high efficiency of energy recovery. The heart of the facility is a 5-cell 703.75 MHz super-conducting RF linac with HOM damping. Flexible lattice of ERL provides a test-bed for testing issues of transverse and longitudinal instabilities and diagnostics of intense CW e-beam. ERL is also perfectly suited for a far-IR FEL. We present the status and our plans for construction and commissioning of this facility.

76

WEJO07

 Nonlinear Compton Scattering And Its Application To Polarized Positron Source for ILC 

  • V.Yakimenko, I.Pogorelsky
    Brookhaven National Laboratory, USA

We propose a novel gamma-source suitable for generating a polarized positron beam for the next generation of electron-positron colliders, such as the International Linear Collider (ILC) and the Compact Linear Collider (CLIC). This 40-MeV polarized gamma-source is based on Compton scattering inside a picosecond CO2 laser cavity from electron bunches produced by a 4-GeV linac. We identified and experimentally verified the optimum conditions for generating at least one gamma photon per every electron. After multiplication at several consecutive interaction points, the gamma-rays so produced will be stopped on a target, thereby creating a copious numbers of circularly polarized positrons. We address the practical feasibility of having an intra-cavity Compton polarized positron source as the injector for these new colliders.