Comment on “h-BN layered material: A new frontier in radiation dosimetry” by Khandaker et al. [Radiation Physics and Chemistry 223 (2024) 111950]

The conclusions drawn in the paper commented on are not supported by the data shown. A background signal that is twice as high as the change over the relevant dose range disqualifies a material for use in dosimetry due to the resulting uncertainty and lack of linearity range. The reported differences in responses and background signals by a factor of 2 between comparable photon spectra indicate that the data are compromised by problems with the dose determination and the annealing process and therefore cannot be considered trustworthy.