In this work, the contribution to the total dose from positrons and delta rays is studied for the case of coherent stopping power of ultraintense electron beams propagating in water. The regime of coherent stopping power has been recently introduced for ultraintense particle beams, where a dose enhancement has been predicted but not yet investigated. Here, we report percentage depth dose curves with particular focus on the yield of delta rays and positrons. It is shown that, although the emission of these particles is a stochastic process and therefore inherently incoherent, coherent stopping power can still influence their yield through the associated enhanced energy losses.
Positron and delta ray dose deposition in ultraintense electron beam interactions / Curcio, A.; Chiadroni, E.; Gatti, G.; Giuliano, L.; Migliorati, M.; Moffa, C.; Mostacci, A.; Palumbo, L.; Petrarca, M.; Sanchez, C.; Volpe, L.. - In: RADIATION PHYSICS AND CHEMISTRY. - ISSN 0969-806X. - 244:113767(2026). [10.1016/j.radphyschem.2026.113767]
Positron and delta ray dose deposition in ultraintense electron beam interactions
Curcio, A.
;Chiadroni, E.;Giuliano, L.;Migliorati, M.;Moffa, C.;Mostacci, A.;Palumbo, L.;Petrarca, M.;
2026
Abstract
In this work, the contribution to the total dose from positrons and delta rays is studied for the case of coherent stopping power of ultraintense electron beams propagating in water. The regime of coherent stopping power has been recently introduced for ultraintense particle beams, where a dose enhancement has been predicted but not yet investigated. Here, we report percentage depth dose curves with particular focus on the yield of delta rays and positrons. It is shown that, although the emission of these particles is a stochastic process and therefore inherently incoherent, coherent stopping power can still influence their yield through the associated enhanced energy losses.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
