The authors regret in the above-mentioned article, the evaluated bunch length values were incorrect. A corrected Table 2is reproduced below. In addition, Sections 2.1.1 and 4 now discuss the corrected data in Table 2. 2.1.1. Evolution of the temporal profile of 150 MeV VHEE beams Electron and photon production and range thresholds are set to 250 eV and 25 µm, respectively. TOF is scored using GetGlobalTime function. Discussion. The electrons are not significantly scattered while passing through 100 cm of air, and therefore the bunch is only slightly lengthened to 15 fs. After 1 cm propagation in water the bunch elongates to 25 fs (Table 2). By the exit of the water phantom the electron bunch temporal duration has increased to 5 ps. Acknowledgements The authors would like to acknowledge Dávid Horváth, Roberto Versaci, Gabriele Grittani and Enrico Brunetti for discovering the error in Table 2 and for contributing to the ensuing discussions. The authors would like to apologise for any inconvenience caused.
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Physics and Astronomy(all)