TY - JOUR AU - NEXT Collaboration (Azevedo, C. D. R. et al AU - Gomez-Cadenas, J. J. AU - Alvarez, V. AU - Benlloch-Rodriguez, J. M. AU - Botas, A. AU - Carcel, S. AU - Carrion, J. V. AU - Diaz, J. AU - Felkai, R. AU - Ferrario, P. AU - Laing, A. AU - Liubarsky, I. AU - Lopez-March, N. AU - Martin-Albo, J. AU - Martinez, A. AU - Muñoz Vidal, J. AU - Musti, M. AU - Nebot-Guinot, M. AU - Novella, P. AU - Palmeiro, B. AU - Querol, M. AU - Renner, J. AU - Rodriguez, J. AU - Serra, L. AU - Simon, A. AU - Sorel, M. AU - Yahlali, N. PY - 2018 DA - 2018// TI - Microscopic simulation of xenon-based optical TPCs in the presence of molecular additives T2 - Nucl. Instrum. Methods Phys. Res. A JO - Nuclear Instruments & Methods in Physics Research A SP - 157 EP - 172 VL - 877 PB - Elsevier Science Bv KW - Optical TPCs KW - Microscopic simulation KW - Xenon scintillation AB - We introduce a simulation framework for the transport of high and low energy electrons in xenon-based optical time projection chambers (OTPCs). The simulation relies on elementary cross sections (electron-atom and electron-molecule) and incorporates, in order to compute the gas scintillation, the reaction/quenching rates (atom-atom and atom-molecule) of the first 41 excited states of xenon and the relevant associated excimers, together with their radiative cascade. The results compare positively with observations made in pure xenon and its mixtures with CO2 and CF4 in a range of pressures from 0.1 to 10 bar. This work sheds some light on the elementary processes responsible for the primary and secondary xenon-scintillation mechanisms in the presence of additives, that are of interest to the OTPC technology. SN - 0168-9002 UR - http://arxiv.org/abs/1705.09481 UR - https://doi.org/10.1016/j.nima.2017.08.049 DO - 10.1016/j.nima.2017.08.049 LA - English N1 - WOS:000415128000022 ID - NEXTCollaborationAzevedo_etal2018 ER -