Design of the thermal neutron beam for neutron radiography at the Syrian MNSR |
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Authors: | Ismail Shaaban |
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Affiliation: | Nuclear Engineering Dept., Atomic Energy Commission, P.O. Box 6091, Damascus, Syria |
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Abstract: | Neutron beam design was studied at the Syrian reactor (MNSR, 30 kW) with a view to generating thermal neutron beam in the vertical irradiation sites for neutron radiography. The design of the neutron collimator was performed using MCNP4C and the ENDF/B-V cross-section library. Thermal, epithermal and fast neutron energy ranges were selected as <0.4 eV, 0.4 eV–10 keV, >10 keV, respectively. To produce a good neutron beam quality, bismuth was used as photon filter. In this design, the L/D ratio of this facility had the value of 125. The thermal neutron flux at the beam exit was about 2.548 × 105 n/cm2 s. If such neutron beam were built into the Syrian MNSR many scientific applications would be available using the neutron radiography. |
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Keywords: | Syrian MNSR Neutron radiography Thermal neutron Photon filter MCNP code |
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