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Selective assessment of the fast neutron component in mixed neutron-gamma field using TLD activation

Selective determination of the fast neutron component in a mixed radiation field by the TL dosimetry was studied. TL responses due to the induced radioactivity in Al2O3:C dosimeters via the 27Al(n, gamma)24Na reaction were used to measure the neutron part in a mixed 14.5 MeV neutron and gamma irradiation field. The lowest detectable neutron dose was found to be in order of 10 mSv of personal dose equivalent for Al2O3:C.

Thermoluminescence dosimetry; fast neutron dosimetry; Al2O3 TLD; mixed neutron-gamma radiation

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