The interaction of proton irradiation with Zr textured microstructure

• Simulating the effect of channelling on energy lost by protons in textured Zr. Proton damage varies up to 40% from grain due channelling. Quantification proton requires an average over many grains. Channelling affects more atypical grains texture than typical. Difference loss between and typical reduced at 600K. irradiation is commonly used as a surrogate for neutrons experimental studies structural materials thermal reactors, such Zr alloys. The beam unidirectional which choice be made about direction relative sample. will determine what lattice orientations predominantly interact with, particularly sample with strong texture. Since can channelled orientation crystal affect deposition implantation range. We have therefore investigated degree high found strongly find that near low-index directions like 〈 1 2 ¯ 0 〉 zone axis encourage higher compared other split-basal these change 40%. Our results show care must taken when quantifying samples using single orientation. To compensate effects, ion should quantified averaging across different orientations, especially temperature bulk less 300 K.