Speaker
Description
Advanced accelerating techniques are evolving rapidly, enabling high energetic electron beams with significantly decreasing footprint. While the accelerating structures shrink impressively, longitudinal diagnostic components with femtosecond resolution like transverse deflecting structures still demand a significant amount of space and complex infrastructure, are costly and require precise synchronization of their power source with the arriving electron bunch.
The TWAC project¹ aims for a fully-integrated compact accelerator, delivering ultrashort bunches (≈10s of fs) at low charge and energy (10 pC, 10 MeV), requiring corresponding small footprint, cost-efficient longitudinal diagnostics. Here, the retained method is passive streaking in dielectric loaded waveguides² in which the self-excited transverse wakefields are imposing a varying kick dependent on the intra-bunch longitudinal position. The new parameter regime is investigated at the ARES linac, firstly at medium energy (≈60 MeV). A novel forward propagation reconstruction algorithm has been developed, based on a waveguide mode expansion with more than 100 modes to properly model the excited wake.
Funding Agency
The TWAC project is funded by the European Union‘s Horizon Europe research and innovation programme (EIC Pathfinder scheme) under grant agreement n. 101046504.
Footnotes
¹ C. Bruni et al., in Proc. IPAC'23, Venice, Italy, May 2023, pp. 1468-1471. doi:10.18429/JACoW-IPAC2023-TUPA061
² S. Bettoni et al., Phys. Rev. Accel. Beams, 2016, 19(2), 021304. doi:10.1103/PhysRevAccelBeams.19.021304
| Paper status | Resubmitted proceeding files received and assigned to an editor. Accepted. |
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