Angularly resolved characterization of ion beams from laser-ultrathin foil interactions

Scullion, C. and Doria, D. and Romagnani, L. and Ahmed, H. and Alejo, A. and Ettlinger, O.C. and Gray, R.J. and Green, J. and Hicks, G.S. and Jung, D. and Naughton, K. and Padda, H. and Poder, K. and Scott, G.G. and Symes, D.R. and Kar, S. and McKenna, P. and Najmudin, Z. and Neely, D. and Zepf, M. and Borghesi, M. (2016) Angularly resolved characterization of ion beams from laser-ultrathin foil interactions. Journal of Instrumentation, 11. C09020. ISSN 1748-0221 (https://doi.org/10.1088/1748-0221/11/09/C09020)

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Abstract

Methods and techniques used to capture and analyze beam profiles produced from the interaction of intense, ultrashort laser pulses and ultrathin foil targets using stacks of Radiochromic Film (RCF) and Columbia Resin #39 (CR-39) are presented. The identification of structure in the beam is particularly important in this regime, as it may be indicative of the dominance of specific acceleration mechanisms. Additionally, RCF can be used to deconvolve proton spectra with coarse energy resolution while mantaining angular information across the whole beam.