Abstract
Recently a Neutron Radiography System has been designed, constructed and installed at the research reactor of Tehran Nuclear Research Center (TNRC). The 6 inch through tube was chosen because of its low gamma intensity. A collimator was made of two parts, Iron and lead, which were covered thoroughly with cadmium. Cylindrical slabes of Bismuth and Graphite with calculated length were made to reduce gamma intensity and to thermalize fast neutrons respectively. The collimated thermal flux is uniform in direction and intensity, and at the reactor wall and thermal power of 1 MW, the beam has following characteristics: Average thermal flux of 6.1*104 n/cm2-sec, cadmium ratio (thermal per total activity) of 98% and neutron-gamma ratio of 5*105 n/cm2/mR.
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© 1987 ECSC, EEC, EAEC, Brussels and Luxembourg
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Moghadam, K.K., Tabatabaeian, Z., Mirhabibi, N. (1987). Neutron Radiography Facility for AEOI Nuclear Research Center. In: Barton, J.P., Farny, G., Person, JL., Röttger, H. (eds) Neutron Radiography. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3871-7_5
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DOI: https://doi.org/10.1007/978-94-009-3871-7_5
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8221-1
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