CERN Accelerating science

Article
Report number	CERN-ATS-2010-121 ; CLIC-Note-855
Title	Beam Dynamics in compton storage rings with laser cooling
Author(s)	Bulyak, E (Kharkov, KIPT) ; Gladkikh, P (Kharkov, KIPT) ; Rinolfi, L (CERN) ; Omori, T (KEK, Tsukuba) ; Urakawa, J (KEK, Tsukuba)
Publication	2010
Imprint	14 Jun 2010
Number of pages	3
In:	1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUPD093
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CLIC
Abstract	Compton sources are capable to produce intense beams of gamma-rays necessary for numerous applications, e.g. production of polarized positrons for ILC/CLIC projects, nuclear waste monitoring. These sources need high current of electron beams of GeV energy. Storage rings are able to accumulate a high average current and keep it circulating for a long time. The dynamics of circulating bunches is affected by large recoils due to emission of energetic photons. We report results of both an analytical study and a simulation on the dynamics of electron bunches circulating in storage rings and interacting with the laser pulses. The steady-state transverse emittances and energy spread, and dependence of these parameters on the laser pulse power and dimensions at the collision point were derived analytically and simulated. It is shown that the transverse and longitudinal dimensions of bunches are dependent on the power of laser pulses and on their dimensions as well. Conditions of the laser cooling were found, under which the electron bunches shrink due to scattering off the laser pulses.
Copyright/License	publication: (License: CC-BY)

Email contact: [email protected]