IBIC2025 - 14th International Beam Instrumentation Conference

Preliminary Radiation Hardness Characterization of Ultra-broadband Direct THz Detectors based on Schottky diodes and GaAs TeraFETs

WEPMO37

10 Sept 2025, 16:00

2h

Mountford Hall, Liverpool Guild of Students

Poster Presentation MC05: Longitudinal Diagnostics and Synchronization WEPMO

Speakers

Bernhard Scheible (Technische Hochschule Mittelhessen) Rahul Yadav (Technical University of Darmstadt)

Description

Many currently operating and future FELs can generate radiation at megahertz repetition rates, requiring an ultra-broadband, compact, robust & fast (response time at least on a single-digit nanosecond scale) diagnostic tool. We develop ultrafast-operating terahertz detectors based on Schottky diodes and GaAs field-effect transistors (TeraFETs) that operate at room temperature. Here, we present the preliminary radiation hardness characterization of these detectors. Promising results demonstrate the ability of these detectors to be commissioned at accelerator facilities for longitudinal beam diagnostics.

Footnotes

[] R. Yadav, F. Ludwig, F. R. Faridi, et al., Sensors 23, 3469 (2023).
[] R. Yadav, J.M. Klopf, M. Kuntzsch, et al., IBIC'23, Saskatoon, Canada, Sep. 2023.
[**] R. Yadav, F. Ludwig, F. R. Faridi, et al., Opt. Express 32, 43407 (2024).

Funding Agency

The German Federal Ministry of Education and Research (BMBF) supports the work under contract no. 05K22RO1 (at THM, Friedberg) and 05K22RD1 (at TU Darmstadt).