• A. Valishev, G. Annala, D.S. Bollinger, B.M. Hanna, A. Jansson, T.R. Johnson, R.S. Moore, D.A. Still, C.-Y. Tan, X. Zhang
  Fermilab, Batavia

Funding: Work supported by the United States Department of Energy under Contract No. DE-AC02-07CH11359

Over the past year Tevatron has been routinely operating at initial luminosity over 3·10³². The high luminosity regime highlighted several issues that became the focus for operational improvements. In this report we summarize the experience in such areas as mitigation of particle losses, maintaining orbit and optics stability, and identification of aperture restrictions.

Slides

• C.-Y. Tan, D.S. Bollinger, C.W. Schmidt
  Fermilab, Batavia

Funding: Operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.

The present FNAL Linac H^- injector has been operational since 1978 and consists of a magnetron H^- source and a 750-keV Cockcroft-Walton Accelerator. The proposed upgrade to this injector is to replace the present magnetron source having a rectangular aperture with a circular aperture, and to replace the Cockcroft-Walton with a 200-MHz RFQ. Operational experience at other laboratories has shown that the upgraded source and RFQ will be more reliable and require less manpower than the present system.