Speaker
Description
The Institute for Beam Physics and Technology (IBPT) at the Karlsruhe Institute of Technology (KIT) is actively developing a growing program of radiotherapy-oriented accelerator research, combining experiments at the Ferninfrarot LINAC- und Test-Experiment (FLUTE) accelerator with studies towards the development of novel dosimetry methods. FLUTE was designed to operate over a broad range of beam parameters and can be used to investigate the effects of ultra-high dose rate (UHDR) electron beams, which feature instantaneous and average dose rates of over $10^{11}\,\textrm{Gy}\,\textrm{s}^{-1}$ and $40\,\textrm{Gy}\,\textrm{s}^{-1}$, respectively, compared to the conventional radiotherapy regime of $\sim0.1\,\textrm{Gy}\,\textrm{s}^{-1}$. Achieving the required dose rates for both modalities involved adjusting key beam parameters such as bunch charge, repetition rate, and transverse size. In this contribution, we give an overview of recent activities at IBPT, such as FLUTE’s new sample-irradiation setup, the tuning of the accelerator to UHDR conditions, and novel UHDR-compatible beam instrumentation experiments and simulations.