What is the optimum flux-to-ambient dose conversion factor used for Am-Be neutron source filtered by a slab phantom?

27 January 2020 1 2K Report

I want to measure the ambient dose of Am-Be neutron source filtered by a standard slab phantom. I measure the neutron flux moderated by a slab phantom using an activation foil by gamma spectroscopy and I wont to calculate the corresponding dose.

Can I use the conversion factor of the thermal neutron as reported in the ICRP -74 or use the conversion factor of the Cf-225 filtered by D2O.

Documented answer is appreciated.

Mounir Aït-Ziane

as cited in ISO 8529-1, you use the conversion factor 391 pSv.cm² for Am-Be neutron source

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