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PRODID:-//Memento EPFL//
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SUMMARY:Experimental study of basic gyrotron physics from linear to chaoti
 c regimes
DTSTART:20120611T103000
DTEND:20120611T113000
DTSTAMP:20260501T212317Z
UID:8dc39c73e897164337925461cfedd6b138bb3c66da52bb2ba74805f2
CATEGORIES:Conferences - Seminars
DESCRIPTION:MER S. Alberti\, CRPP - EPFL\nThe CW-gyrotron developped at CR
 PP for a 400MHz DNP-NMR* spectroscopy application has demonstrated to be a
 n ideal experimental set-up for studying basic wave-particle interaction d
 ynamics in the domain of coherent radiation by intense electron beams.\nIn
  this seminar we present a detailed experimental study of the operational 
 capabilities of a first-prototype modular gyrotron\, where 0.26THz radiati
 on in excess of 200W-CW has been measured in the designed TE7\,2 mode.\nIt
  will be shown that all the operational domains starting from linear theor
 y up to chaotic regimes can be experimentally investigated. The accessibil
 ity to non-stationary operating points characterized by the excitation of 
 side-bands allows to explore novel operational regimes such as pulsed mode
 s obtained in the so called Q-switching regimes.\nThe basics elements of t
 he gyrotron theory will be presented and the experimental results will be 
 discussed on the basis of the theoretical prediction obtained with the non
 -linear time-dependent self-consistent monomode code\, TWANG\, developped 
 at CRPP.\n* DNP-NMR: Dynamic Nuclear Polarization - Nuclear Magnetic Reson
 ance
LOCATION:PPB.019
STATUS:CONFIRMED
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