Title :
The MICHELLE electron gun and collector modeling tool
Author :
Petillo, John ; Blanchard, Patrick ; Mondelli, A. ; Eppley, K. ; Krueger, W. ; McClure, T. ; Panagos, D. ; Levush, Baruch ; Burdette, J. ; Cattelino, M. ; DeFord, J. ; Held, Ben ; Dionne, N. ; Humphries
Abstract :
The 3D finite-element gun and collector modeling code, MICHELLE, has been under development at SAIC in collaboration with industrial partners and national laboratories. This development program has been designed to address the shortcomings of current beam optics simulation and modeling tools for vacuum electron devices. The program specifically targets problem classes including gridded-guns, sheet-beam guns, multi-beam devices, and anisotropic collectors, with a focus on improved physics models. The code includes both structured and unstructured grid systems for meshing flexibility. Advances have been made in the areas of accurate particle tracking through the mesh and beam emission methods, including new models for thermionic, temperature-limited, Child´s law and secondary emission
Keywords :
beam handling equipment; electron accelerators; electron beams; electron guns; electron optics; finite element analysis; high energy physics instrumentation computing; klystrons; particle beam extraction; 3D finite-element electron gun; MICHELLE code; SAIC; anisotropic collectors; beam emission methods; beam optics simulation; collector modeling tool; gridded-guns; klystron gun; meshing flexibility; multibeam devices; particle tracking; secondary emission; selfmagnetic fields; sheet-beam guns; thermionic temperature-limited Child law; unstructured grid systems; vacuum electron devices; Collaboration; Electron devices; Electron optics; Finite element methods; Geometrical optics; Guns; Laboratories; Optical beams; Optical design; Optical devices;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988002
