Talk (non-conference) (Invited)

PUBDB-2026-01870

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png High Brightness Beams for Photoinjector R&D and feeding THz and Radiation Biology Experimental Stations

Gross, M. (Corresponding author)DESY*

2026

Abstract: At the Photo Injector Test facility at DESY in Zeuthen (PITZ) 22 MeV, high brightness electron beams with bunch charges of less than a pC up to several nC are generated in an L-band photogun, which can provide bunch trains of up to 1 ms in length at 10 Hz repetition rate.The three pillars of operation are:1) R&D on high brightness photoinjectors for European XFEL: Main work topics are photocathodes, laser pulse shaping, machine learning, and operations improvements.2) THz SASE FEL: Beams with a bunch charge of up to several nC are transported through an undulator to generate THz radiation at wavelengths around 100 µm with pulse energies of more than 100 µJ.3) Radiation biology: In a second beamline the electron bunches are transported through a thin exit window to an in-air experimental station for in vitro and in vivo irradiations providing ultra-high dose rates with the goal to systematically study the FLASH effect.

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Contributing Institute(s):

1. Technologie (Z_PITZ)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)

Experiment(s):

1. Photo Injector Test Facility

Appears in the scientific report 2026

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