Accession Number : ADA495057


Title :   Coherent Structures and Chaos Control in High-Power Microwave and Charged-Particle Beam Devices


Descriptive Note : Final rept. 1 Apr 2006-31 Oct 2008


Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE


Personal Author(s) : Chen, Chiping


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a495057.pdf


Report Date : 31 Jan 2009


Pagination or Media Count : 122


Abstract : This report summarizes research results obtained under the auspices of Air Force Office of Scientific Research, Grant No. FA9550-06-1-0269. In particular, we conducted vigorous theoretical and computational investigations of coherent structures and chaos in a wide range of intense electron beam plasmas relevant to the development of high-power microwave and particle-beam devices for directed energy applications. The research accomplishments includes: a) development of a small-signal theory of magnetrons, b) discovery of vortex structures in relativistic magnetrons, c) discovery of adiabatic thermal equilibria in periodically focused electron beams, d) design of high-brightness circular beam systems, and e) development of elliptic beam theory for high-power microwave device applications.


Descriptors :   *ELECTRON BEAMS , *PARTICLE BEAMS , *MICROWAVES , MAGNETRONS , BEAMS(RADIATION) , ELLIPSES , CHARGED PARTICLES , PLASMAS(PHYSICS) , HIGH POWER , VORTICES


Subject Categories : Particle Accelerators


Distribution Statement : APPROVED FOR PUBLIC RELEASE