Abstract
The experimental determination for the fission-neutron fluence-to-dose conversion factor was undertaken by a detector made of poly allyl diglycol carbonates (PADC). The detector's UV-response was correlated to set of reference gamma-irradiated samples as a comparator. High neutron fluence from ETRR-2 research reactor was used while the comparator samples were irradiated using Co-60 standard gamma-cell of calibrated dose rate. The gamma-ray dose ranged from 5 x 10(3) Gy to 3 x 10(6) Gy. Neutron fluence was monitored using iron by means of the Fe-54(n,p)Mn-54 and the Fe-58(n, gamma)Fe-59 reactions. Results showed that the experimental value of the neutron fluence-to-dose conversion factor is (3.03 +/- 0.06)x10(-11) Gy cm(2) over the whole energy spectrum of the fission neutrons from ETRR-2 reactor. Infrared investigation proved the effectiveness of UV-absorption in PADC detector for neutron monitoring purposes. The quantitative measurements showed that formation and fragmentation of the C=O, C=C and C-O-C atomic arrangements have the exact similar behavior under neutron as well as gamma-ray irradiation. These chromophores are best assesses using UV-absorption and treatment for direct-allowed transition energy. Experiments revealed a remnant signature for the dependence of hydrogen atom dissociation on the type of radiation that induced the modification.