Mainz 2022 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 4: Radiation Generation and Applications

AKBP 4.4: Vortrag

Montag, 28. März 2022, 16:45–17:00, AKBP-H14

Utilizing the ELSA accelerator for evaluation of the FLASH effect with ultra-high energy electrons — •Alexandra Wald¹, Manuela Denz², Klaus Desch¹, Daniel Elsner¹, Stephan Garbe², Frank Giordano², Carsten Herskind³, and Dennis Proft¹ — ¹Elektronen-Stretcher-Anlage ELSA, Physikalisches Institut, Universität Bonn — ²Universitätsklinikum Bonn — ³Medizinische Fakultät Mannheim, Universität Heidelberg

At the electron accelerator facility ELSA electrons with a final energy from 0.8GeV up to 3.2GeV can be accelerated and stored. These electrons can be extracted to one of the two detectors for hadron physics experiments as well as to a detector testing site, where the primary electron beam is directly provided for internal and external users.

In cooperation with the University Hospital Bonn (UKB), this test beam line will be used to carry out basic experiments on irradiation of biological cells to evaluate the FLASH-effect using ultra-high energy electron (UHEE) beams. This requires short and intense electron pulses in the order of microseconds to be extracted via a newly designed extraction mode from the storage ring. Furthermore, new diagnostics are planned to be set up to verify the reproducibility of overall charge and position of the electron pulses.

The first steps towards systematic irradiation of cells for measuring the relative biological effectiveness will be presented.

*Funded by the TRA Matter and TRA Life and Health (University of Bonn) as part of the Excellence Strategy of the federal and state governments.