Computer studies of detection efficiency of fast-neutron spectrum based on PADC using the Monte Carlo method

Calculation of CR-39 efficiency for fast neutrons using the MCNP and SRIM codes

“…The technique of energy-selective fast-neutron detection is based on the track density measurement in CR-39 detectors placed in contact with a variable thickness of degrader (usually lead, aluminium or gold, which are easily accessible and less likely to have (n,ion) reactions with neutrons) followed by a PE converter (Dajko, 1990;Aslam et al, 1988;Wan et al, 2003).…”

“…The converter-degrader-detector assembly has been used since 1987 for the measurement of fast neutrons Dajko, 1990;Wan et al, 2003). Some advantages of the above assembly are small size, high detection efficiency and resolution, insensitivity to photons and electrons, simple operation, etc.…”

“…Fax: +98 21 77104938. programs have been written Bull, 1987, 1988;Rao et al, 2001;Wan et al, 2003). Although these programs, have some advantages in the studying of CR-39 response, they have some limitations compared with other widely available and standard codes (e.g.…”

Monte Carlo calculation of CR-39 efficiency for fast neutron detection using a combination of MCNP and SRIM codes, and comparison with experimental results

“…The technique of energy-selective fast-neutron detection is based on the track density measurement in CR-39 detectors placed in contact with a variable thickness of degrader (usually lead, aluminium or gold, which are more accessible and less likely to have (n,ion) reactions with neutrons) followed by a PE radiator (Dajko, 1990;Aslam and Durrani, 1988;Wan et al, 2003).…”

“…The radiator-degrader-detector assembly has been used since 1987 for the measurement of fast neutrons Dajko, 1990;Wan et al, 2003). Some advantages of the above assembly are: small size, high detection efficiency and resolution, electronic devices independent, simple operation, etc.…”