June 28, 2026 to July 2, 2026
Ghent, Belgium
Europe/Brussels timezone

Parameter Optimisation and Spectral Performance Analysis of the HEXITEC 6×2 Detector

Jul 1, 2026, 5:40 PM
20m
Ghent, Belgium

Ghent, Belgium

Poster presentation only Imaging theory Poster session 2

Speaker

Alhanouf Alrwais (1. Department of Materials, University of Manchester, Manchester, United Kingdom 2. Nuclear Technologies Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia)

Description

Spectral performance in hyperspectral X-ray imaging using the HEXITEC 6×2 detector system is optimised through systematic parameter tuning and spectral data processing. The approach aims to improve energy-resolved imaging and enhance the quality of spectral information.

Data acquisition and processing are carried out using the Odin software framework, with particular attention to parameters influencing detector response. A structured optimisation strategy is applied to evaluate the impact of key acquisition and processing parameters on spectral quality, including noise characteristics, energy resolution, and count rate performance.

Comparisons between simulated and experimentally acquired spectra are performed to assess the effectiveness of the optimisation. Experimental studies are conducted on representative samples to evaluate material discrimination under different parameter conditions.

The results highlight the sensitivity of spectral performance to detector configuration and identify parameters that significantly influence energy resolution and spectral fidelity. Improved agreement between simulated and experimental spectra is observed following optimisation. These findings support the development of more reliable spectral imaging and contribute to ongoing improvements in colour X-ray imaging methodologies.

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[3] M. Wilson et al., IEEE Trans. Nucl. Sci. 56 (2009), 2505–2512
[4] L. Jowitt et al., JINST 17 (2022), P01012
[5] S. D. M. Jacques et al., Nanoscale 6 (2014), 11271–11277
[6] C. K. Egan et al., Sci. Rep. 5 (2015), 15979

Author

Alhanouf Alrwais (1. Department of Materials, University of Manchester, Manchester, United Kingdom 2. Nuclear Technologies Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia)

Co-authors

Andrew Coathup Mr Matt Divers (National Research Facility for X-ray CT and Henry Royce Institute, Royce Hub Building, University of Manchester, Manchester, M13 9PL, UK) Dr Nicola Wadeson (National Research Facility for X-ray CT and Henry Royce Institute, Royce Hub Building, University of Manchester, Manchester, M13 9PL, UK) Prof. Philip Withers (Department of Materials, University of Manchester, Manchester, United Kingdom) Prof. Timothy Burnett (Department of Materials, University of Manchester, Manchester, United Kingdom)

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