• 
  Bundesmann, J.; Denker, A.; Kourkafas, G.; Muehldorfer, P.; Heufelder, J.; Weber, A.: Fast Beam Delivery for Flash Irradiations at the HZB Cyclotron. In: Andy Götz ... [Ed.] : ICALEPCS 2023 : Proceedings of the 19th International Conference on Accelerator and Large Experimental Physics Control Systems, in Cape Town, South Africa, 7-13 October 2023Geneve: JACoW Publishing, Geneva, Switzerland, 2023. - ISBN 978-3-95450-238-7, p. MO3BCO07/1-5

Open Access Version

Abstract:
In the context of radiotherapy, Flash irradiations mean the delivery of high dose rates of more than 40 Gy/s, in a short time of less than one second. The expectation of the radio-oncologists are lesser side effects while maintaining the tumour control when using Flash. Clinically acceptable deviations of the applied dose to the described dose are less than 3%. Our accelerator control system is well suited for the standard treatment of ocular melanomas with irradiaton times of 30 s to 60 s. However, it is too slow for the short times required in Flash. Thus, a dedicated beam delivery control system has been developed, permitting irradiation times down to 7 ms with a maximal dose variation of less than 3%.