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Investigators reported inconsistent results of rel. E response.

E.g.: for EBT3 Brown et al (2012) used synchrotron mono-chromatic x-rays and

found up to 3% dose over-response (

) at low E (25-35 keV) while

Massillon-JL et al (2012) reported under-response up to 13% for 50kVp beams.

It became apparent that manufacturing and compositional changes do take

place, that are not always accompanied by updates to the film model or label

(!!!)

Radiochromic films: rel. E response

97.

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