Simulations of pion production from water-cooled solid targets using MARS15

Configurations of a solid pion production target for the neutrino factory that includes a water jacket are simulated in the hadron production code MARS15 [1]. The addition of water coolant and extension of the target into slices may introduce the effects of: yield degredation from pion reabsorption, additional heat load on the target, and increased scatter in arrival times. These three effects are quantified and used as figures of merit in a comparison of different target lengths and diameters, evaluated in the context of the neutrino factory front end requirements. Energy deposition is also broken down per component to quantify potential heat sources in the system. c Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.