TY  - JOUR
AU  - Aftab, Namra
TI  - Status of THz FEL activities at PITZ
CY  - Gottingen
PB  - 2025
M1  - PUBDB-2025-01585
PY  - 2025
AB  - A single-pass THz free electron laser (FEL) at the PhotoInjector Test facility at DESY in Zeuthen (PITZ) was designed and implemented for a proof-of-principle experiment on a tunable high-power THz source for pump-probe experiments at the European XFEL. THz pulses are generated at a radiation wavelength of 100µm within a 3.5 m long, strongly focusing planar LCLS-I undulator. High gain is achieved by driving the FEL with high brightness beams from the PITZ photoinjector at 17MeV and a bunch charge of up to several nC. In addition to the mechanisms of self-amplified spontaneous emission (SASE), seeding of the THz-FEL by electron bunch modulation at the photocathode is also being investigated. The experimental results, including the gain curves, spectral properties and transverse distribution of the THz-FEL radiation, are presented in comparison with theoretical predictions and numerical simulations.
T2  - DPG Meeting
CY  - 31 Mar 2025 - 4 Apr 2025, Zeuthen (Germany)
Y2  - 31 Mar 2025 - 4 Apr 2025
M2  - Zeuthen, Germany
LB  - PUB:(DE-HGF)36
UR  - https://bib-pubdb1.desy.de/record/627268
ER  -