Theoretical and Numerical Studies of the Effects of Ultra-High Dose Rate Pulses

The understanding of the interaction of high-intensity particle beams with matter is an important aspect for the development of novel accelerator instrumentation. Recently, methods for delivery of ultra-high dose rate radiation have become an increasingly important area of accelerator technology, for example, in the context of FLASH radiotherapy, dosimetry, and particle detector development. In this paper, theoretical models and numerical simulations have been implemented to determine the thermal and subsequent mechanical response of materials subjected to sub-millisecond irradiation with high-intensity particle beams. Emphasis is placed on the identification of phenomena with the potential to drive the development of next-generation accelerator technologies.