COOL2013 - List of Authors (Sessler, A.)

Paper

Title

Page

Noise Suppression in Relativistic Electron Beams

184

G.V. Stupakov
SLAC, Menlo Park, California, USA
A. Sessler, M.S. Zolotorev
LBNL, Berkeley, California, USA

Funding: Work supported by the U.S. Department of Energy under contracts No. DE-AC02-76SF00515 and DE-AC02-05CH11231.
Understanding and controlling the noise effects in relativistic beams is becoming increasingly important with new applications for ultra-bright particle sources such as x-ray free electron lasers (FELs). In free electron lasers, shot noise provides the startup radiation for Self-Amplified Spontaneous Emission (SASE), but also drives hazardous instabilities that might impede coherent processes. Several approaches to the noise suppression at sub-micron wavelengths have been studied in recent years both theoretically and experimentally. In this paper we review the proposed approaches to noise suppression and compare their suppressing capabilities at short wavelengths. We then develop a general approach for study of noise suppressors that use an interaction region in combination with a dispersion section. We apply this method for the case when undulators are used in the interaction region, and show its promise for short-wavelengths FEL.

Slides THAM2HA03 [2.539 MB]

FRAM2HA06

Memories of Dieter Möhl

A. Sessler
LBNL, Berkeley, California, USA

Dieter was one of my closest friends and I feel his loss deeply. He was one of the kindest, gentlest, most patient, considerate and generous, person I have ever known. In this brief talk I will describe some of the incidents that endeared Dieter to me.

Paper	Title	Page
THAM2HA03	Noise Suppression in Relativistic Electron Beams	184
	G.V. Stupakov SLAC, Menlo Park, California, USA A. Sessler, M.S. Zolotorev LBNL, Berkeley, California, USA
	Funding: Work supported by the U.S. Department of Energy under contracts No. DE-AC02-76SF00515 and DE-AC02-05CH11231. Understanding and controlling the noise effects in relativistic beams is becoming increasingly important with new applications for ultra-bright particle sources such as x-ray free electron lasers (FELs). In free electron lasers, shot noise provides the startup radiation for Self-Amplified Spontaneous Emission (SASE), but also drives hazardous instabilities that might impede coherent processes. Several approaches to the noise suppression at sub-micron wavelengths have been studied in recent years both theoretically and experimentally. In this paper we review the proposed approaches to noise suppression and compare their suppressing capabilities at short wavelengths. We then develop a general approach for study of noise suppressors that use an interaction region in combination with a dispersion section. We apply this method for the case when undulators are used in the interaction region, and show its promise for short-wavelengths FEL.
	Slides THAM2HA03 [2.539 MB]

FRAM2HA06	Memories of Dieter Möhl
	A. Sessler LBNL, Berkeley, California, USA
	Dieter was one of my closest friends and I feel his loss deeply. He was one of the kindest, gentlest, most patient, considerate and generous, person I have ever known. In this brief talk I will describe some of the incidents that endeared Dieter to me.