IPAC2011 - List of Authors (Shiltsev, V.D.)

Paper

Title

Page

Achievements and Lessons from the Tevatron

903

V.D. Shiltsev
Fermilab, Batavia, USA

The Tevatron Run-2 will come to an end at the time of IPAC'11. This talk will concentrate on exploration of the accelerator physics issues that were dealt with in achieving the current (very high) level of performance in the Tevatron and will review achievements, challenges and lessons learned on the way.

Slides TUYA01 [5.881 MB]

WEODA02

Collimation Studies with Hollow Electron Beams

1939

G. Stancari, G. Annala, T.R. Johnson, G.W. Saewert, V.D. Shiltsev, D.A. Still, A. Valishev
Fermilab, Batavia, USA

Funding: Fermi Research Alliance, LLC operates Fermilab under Contract DE-AC02-07CH11359 with the US Department of Energy. This work was partially supported by the US LHC Accelerator Research Program (LARP).
Recent experimental studies at the Tevatron collider have shown that magnetically confined hollow electron beams can act as a new kind of collimator for high-intensity beams in storage rings. In a hollow electron beam collimator, electrons enclose the circulating beam. Their electric charge kicks halo particles transversely. If their distribution is axially symmetric, the beam core is unaffected. This device is complementary to conventional two-stage collimation systems: the electron beam can be placed arbitrarily close to the circulating beam; and particle removal is smooth, so that the device is a diffusion enhancer rather than a hard aperture limitation. The concept was tested in the Tevatron collider using a hollow electron gun installed in one of the existing electron lenses. We describe some of the technical aspects of hollow-beam scraping and the results of recent measurements.

Slides WEODA02 [9.049 MB]

Paper	Title	Page
TUYA01	Achievements and Lessons from the Tevatron	903
	V.D. Shiltsev Fermilab, Batavia, USA
	The Tevatron Run-2 will come to an end at the time of IPAC'11. This talk will concentrate on exploration of the accelerator physics issues that were dealt with in achieving the current (very high) level of performance in the Tevatron and will review achievements, challenges and lessons learned on the way.
	Slides TUYA01 [5.881 MB]

WEODA02	Collimation Studies with Hollow Electron Beams	1939
	G. Stancari, G. Annala, T.R. Johnson, G.W. Saewert, V.D. Shiltsev, D.A. Still, A. Valishev Fermilab, Batavia, USA
	Funding: Fermi Research Alliance, LLC operates Fermilab under Contract DE-AC02-07CH11359 with the US Department of Energy. This work was partially supported by the US LHC Accelerator Research Program (LARP). Recent experimental studies at the Tevatron collider have shown that magnetically confined hollow electron beams can act as a new kind of collimator for high-intensity beams in storage rings. In a hollow electron beam collimator, electrons enclose the circulating beam. Their electric charge kicks halo particles transversely. If their distribution is axially symmetric, the beam core is unaffected. This device is complementary to conventional two-stage collimation systems: the electron beam can be placed arbitrarily close to the circulating beam; and particle removal is smooth, so that the device is a diffusion enhancer rather than a hard aperture limitation. The concept was tested in the Tevatron collider using a hollow electron gun installed in one of the existing electron lenses. We describe some of the technical aspects of hollow-beam scraping and the results of recent measurements.
	Slides WEODA02 [9.049 MB]