Title :
Applications and current status of the finite-element MICHELLE gun & collector simulation code
Author :
Petillo, John ; Panagos, Dimitrios ; Ovtchinnikov, Serguei ; Held, Ben ; DeFord, John ; Nelson, Eric ; Nguyen, Khanh ; Wright, Ed ; Jensen, Kevin ; Levush, Baruch
Author_Institution :
Sci. Applic. Int. Corp., Billerica, MA, USA
Abstract :
The MICHELLE code is a finite-element electrostatic particle in cell code for application to 2D and 3D particle beam formation, transport, and collection. Its primary development focus has been for DC electron guns and depressed collectors, however, it has other applications such as RF electron guns, ion thrusters, photocathodes, etc. Its ability to manage large mesh sizes and large particle counts in complex geometries requiring the resolution of disparate spatial scales in 2D and 3D on desktop computers has allowed it to be applied to devices that could not have been readily modeled in recent years. This presentation gives an overview of recent applications, capabilities, and the current status of MICHELLE. In particular, application to time-dependent problems and optimization will be illustrated.
Keywords :
electron guns; finite element analysis; particle accelerators; MICHELLE code; MICHELLE collector; MICHELLE gun; RF electron gun; finite-element electrostatic particle in cell code; ion thruster; particle beam collection; particle beam formation; particle beam transport; photocathodes; Application software; Cathodes; Computational geometry; Electron guns; Electrostatics; Finite element methods; Particle beams; Radio frequency; Solid modeling; Spatial resolution;
Conference_Titel :
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3500-5
Electronic_ISBN :
978-1-4244-3501-2
DOI :
10.1109/IVELEC.2009.5193571