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arXiv · 2301.08629

Assessment of the reliability of Deconvolution Procedures for RCF Spectroscopy of Laser-Driven Ion Beams

S. McCallum·G. Milluzzo·M. Borghesi·A. Subiel·F. Romano
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Abstract

Laser-driven ion beams are defined by a number of unique features, including a large spread in energy. A stack configuration of radiochromic film (RCF) can be utilized to characterize such beams through measurements of their energy spectra. A spectroscopic procedure is reported that allows the proton energy density within each active layer of a radiochromic film (RCF) stack to be retrieved. This is based upon on a deconvolution algorithm developed through Geant4 Monte Carlo simulations to correct the contributions of energy depositions within a given film layer. Through Monte Carlo calculations, the spectrum retrieved from a simulated film stack can be retrieved and compared with a known energy spectrum, providing an examination of the efficacy of this tool. Application of the developed deconvolution procedure thus offers the potential to correctly reconstruct the incident energy spectrum of a laser-driven proton and ion beam from a stack of irradiated RCF.

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S. McCallum, G. Milluzzo, M. Borghesi, A. Subiel, F. Romano. 2023-01-20. Assessment of the reliability of Deconvolution Procedures for RCF Spectroscopy of Laser-Driven Ion Beams. https://doi.org/10.1088/1748-0221/17/02/c02014

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