Contribution to a conference proceedings/Contribution to a book

PUBDB-2022-08081

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Start-to-End Simulations of a THz-Driven ICS Source

Seyedfakhari, M. (Corresponding author)CFEL*Extern*DESY* ; Kärtner, F.CFEL*XFEL.EU*DESY* ; Kan, Y.CFEL*DESY* ; Matlis, N.CFEL*DESY* ; Vahdani, M.CFEL*DESY*

2022
JACoW Publishing, Geneva, Switzerland
ISBN: 978-3-95450-227-1

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Please use a persistent id in citations: doi:10.18429/JACoW-IPAC2022-MOPOMS005  doi:10.3204/PUBDB-2022-08081

Abstract: We present start-to-end simulations for a fully THz-driven table-top X-ray source. A dielectric-loaded metallic cavity operating at its Higher Order Mode accelerates 1 PC photo emitted electron bunch up to 430 keV kinetic energy. The output beam of the gun is injected into a dielectric-loaded waveguide where phase velocity of the traveling wave is adjusted in such a way that electrons see an accelerating field all the way along the tube resulting to an 18.5-MeV output beam which is then transported to an inverse Compton scattering (ICS) stage. The injection phase of the electrons can be tuned to introduce a negative energy chirp to the electron bunch leading to a ballistic bunch compression after the linac. In addition, a set of permanent magnet quadrupoles is designed to focus the beam at the ICS interaction point where the electron beam scatters off a 250-mJ, 0.5ps, 1-µm laser beam and generates an X-ray beam with 2.6x10⁷ photons per shot containing photon energies 2keV< Eph <8keV in a beam with 50 mrad half opening angle. The required terahertz waves to power the gun and linac are 550-ps pulses at 300 GHz containing 5 mJ and 23 mJ energies respectively with 1 kHz repetition rate.

Keyword(s): Accelerator Physics ; MC3: Novel Particle Sources and Acceleration Techniques

Note: The article is published in IPAC'22 proceedings volume

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Contributing Institute(s):

1. Ultrafast Lasers & X-rays Division (FS-CFEL-2)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. HIDSS-0002 - DASHH: Data Science in Hamburg - Helmholtz Graduate School for the Structure of Matter (2019_IVF-HIDSS-0002) (2019_IVF-HIDSS-0002)

Experiment(s):

1. AXSIS: Frontiers in Attosecond X-ray Science, Imaging and Spectroscopy

Appears in the scientific report 2022

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