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SUMMARY:The Plasma Discharge Undulator
DTSTART:20260601T140000Z
DTEND:20260601T150000Z
DTSTAMP:20260513T155000Z
UID:indico-event-18659@indico.psi.ch
DESCRIPTION:Speakers: Andrea Frazzitta\n\nPlasma discharge devices have re
 cently emerged as compact and versatile tools for particle beam manipulati
 on. Building upon the Active Plasma Lens (APL) and its curved extension\, 
 the Active Plasma Bending (ABP)\, the concept of the Plasma Discharge Undu
 lator (PDU) is introduced. In a PDU\, a high-current discharge within a ca
 pillary generates an azimuthal magnetic field providing strong linear focu
 sing in the kT/m range\, while a controlled and periodic spatial modulatio
 n of the discharge axis acts as a geometric driving term. An analytical mo
 del of the beam dynamics and radiative properties is presented\, including
  quantitative estimates of the parameters required to achieve stimulated e
 mission (FEL) in the ideal case. Proper injection conditions result in the
  suppression of collective betatron oscillations\, significantly reducing 
 the intrinsic undulator strength spread typical of conventional plasma und
 ulators\, while allowing for matched beam transport. Theoretical estimates
  are validated through multi-particle simulations\, confirming that the PD
 U can operate in the short-period regime\, from millimeters to centimeters
 \, with tunable undulator strength\, supporting narrow-band radiation emis
 sion and seeded longitudinal microbunching. The PDU thus provides a pathwa
 y toward miniaturized\, tunable\, fully-plasma-based light sources with en
 hanced control over focusing and spectral properties.\n\nhttps://indico.ps
 i.ch/event/18659/
LOCATION:WBGB/019
URL:https://indico.psi.ch/event/18659/
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