Details

Autor(en) / Beteiligte

• Waheed, Abdul
• Ali, Nawab
• Baloch, Muzahir A.
• Qureshi, Aziz A.
• Munem, Eid A.
• Rajput, Muhammad Usman
• Jamal, Tauseef
• Muhammad, Wazir

Titel

Optimization of moderator assembly for neutron flux measurement: experimental and theoretical approaches

Ist Teil von

• Nuclear science and techniques, 2017-05, Vol.28 (5), p.64-69, Article 61

Ort / Verlag

Singapore: Springer Singapore

Erscheinungsjahr

2017

Quelle

SpringerLink

Beschreibungen/Notizen

• A moderator of paraffin wax assembly has been demonstrated where its thickness can be optimized to thermalize fast neutrons. The assembly is used for measuring fast neutron flux of a neutron probe at different neutron energies, using BF 3 ( Φ 1″ and 2″) and 3 He( Φ 0.5″) neutron detectors. The paraffin wax thickness was optimized at 6 cm for the neutron probe which contains an Am–Be neutron source. The experimental data are compared with Monte Carlo simulation results using MCNP5 version 1.4. Neutron flux comparison and neutron activation techniques are used for measuring neutron flux of the neutron probe to validate the optimum paraffin moderator thickness in the assembly. The neutron fluxes are measured at (1.17 ± 0.09) × 10 5 and (1.19 ± 0.1) × 10 5  n/s, being in agreement with the simulated values. The moderator assembly can easily be utilized for essential requirements of neutron flux measurements.