Speaker
Description
A detailed numerical simulation of the charge carrier transport inside a parallel plate ionization chamber (PPIC) was developed in UHDPulse. This methodology allows the study of the contributions of ion-ion, electron-ion, electric field perturbation, beam time structure and influence magnitudes to the recombination effect [1,2].
The simulation has been commissioned against an extensive amount of experimental data showing satisfactory results. Based on the simulation results, it was concluded that the distance between electrodes has the major impact mitigating the volume recombination losses [3]. Various ultra-thin ionization chambers with 0.25 mm distance between electrodes were built and tested in different ultra-high dose rate electron beams [4].
References
[1] Romano et al. Med Phys. 49: 4912- 4932 (2022)\
[2] Paz-Martin J. et al. Physica Medica 103, pp. 147-156 (2022)\
[3] Kranzer R. et al. Physica Medica 104, pp. 10-17 (2022)\
[4] Gomez F. et al. Medical Physics 49(7), pp. 4705-4714 (2022)
