IPAC'10 - List of Authors (Petracca, S.)

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

Petracca, S.

Paper	Title	Page
TUPD037	E-Cloud Map Formalism: an Analytical Expression for Quadratic Coefficient	2009
	T. Demma INFN/LNF, Frascati (Roma) S. Petracca, A. Stabile U. Sannio, Benevento
	The bunch-to-bunch evolution of the electron cloud density can be modeled using a cubic map. The map approach has been proved reliable for RHIC* and LHC*. The coefficients that parameterize the map may be obtained by fitting from time consuming numerical simulations. In this communication we derive a simple approximate formula for the quadratic coefficient, which determines the saturation of the cloud due to space charge, in the electron cloud density map, under the assumptions of round chambers and free-field motion of the elctrons in the cloud. Results are compared with simulations for a wide range of parameters governing the evolution of the elctron cloud. U.Iriso, S.Peggs, Phys. Rev.STAB 8, 024403, 2005. ** T.Demma, S.Petracca, G.Rumolo, F.Ruggiero, F.Zimmermann, Phys. Rev.STAB 10, 114401, 2007.

Paper

Title

Page

TUPD037

E-Cloud Map Formalism: an Analytical Expression for Quadratic Coefficient

2009

T. Demma
INFN/LNF, Frascati (Roma)
S. Petracca, A. Stabile
U. Sannio, Benevento

The bunch-to-bunch evolution of the electron cloud density can be modeled using a cubic map. The map approach has been proved reliable for RHIC* and LHC**. The coefficients that parameterize the map may be obtained by fitting from time consuming numerical simulations. In this communication we derive a simple approximate formula for the quadratic coefficient, which determines the saturation of the cloud due to space charge, in the electron cloud density map, under the assumptions of round chambers and free-field motion of the elctrons in the cloud. Results are compared with simulations for a wide range of parameters governing the evolution of the elctron cloud.

* U.Iriso, S.Peggs, Phys. Rev.STAB 8, 024403, 2005.
** T.Demma, S.Petracca, G.Rumolo, F.Ruggiero, F.Zimmermann, Phys. Rev.STAB 10, 114401, 2007.