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 9
NCrystal-based least-squares fits of the SDSS grade within the ROI without PE attachments [blue zone in Fig. 6

(a)]. Three fitting scenarios are presented: the dotted line assumes an ideal polycrystalline state, the solid line accounts for extinction effects in both the ferrite and austenite phases, and the dashed line accounts for extinction effects exclusively in the ferrite phase. The 111 reflection is highlighted, indicating that the fit is improved when secondary extinction effects are considered in the austenite phase. Main hkl reflections for both ferrite and austenite phases are labelled, with austenite phase indices italicized. See text for further discussion.

IUCrJ

Volume 13| Part 6| November 2026|

ISSN: 2052-2525

https://doi.org/10.1107/S2052252526008882

NEUTRON | SYNCHROTRON

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