Quantification in wavelength-resolved neutron imaging: exemplified using polyethylene to mimic hydrogen in stainless steel

Xu, S.; Chulapakorn, T.; Dahlberg, C.F.O.; Damian, J.I.M.; Liu, M.; DiJulio, D.D.; Kittelmann, T.; Losko, A.; Athanasopoulos, S.; Pan, J.; Larsson, A.; Muhrer, G.; Kockelmann, W.; Ramadhan, R.S.; Wolfertz, A.; Woracek, R.

doi:10.1107/S2052252526008882

Figure 4
Comparison of simulated (OpenMC+NCrystal) versus theoretical transmission spectra for the front configuration (PE attachments facing away from the detector). For the Case 3 experimental setup, a sample-to-detector distance of 20 mm is sufficient to mitigate forward-scattering artefacts for an SDSS sample (25 mm in length of gauge, 8 mm thickness, 3 mm width), both with and without PE attachments, within the selected ROIs. Smaller sample-to-detector distances would introduce biases in the measured transmission spectra and thus hinder quantitative analysis. These data define the expected experimental results for the quantitative transmission measurements explained in this work.

IUCrJ

Volume 13| Part 6| November 2026|

ISSN: 2052-2525

https://doi.org/10.1107/S2052252526008882

NEUTRON | SYNCHROTRON

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