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Studies on Thermal Neutron Backscattered by Neutral Beam Injector Ducts in Concrete Shield
Author(s) -
Ahmed F. M. Sayed
Publication year - 1988
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19885000705
Subject(s) - injector , duct (anatomy) , beam (structure) , detector , optics , perpendicular , neutron temperature , neutron , neutron flux , materials science , thermal , shield , neutron radiation , physics , heat flux , nuclear physics , mechanics , heat transfer , geology , medicine , petrology , geometry , mathematics , pathology , meteorology , thermodynamics
Experimental studies on the angular flux distributions of backscattered thermal neutrons by neutral beam injector ducts (NBID) in ilmenite concrete are performed. The neutron flux distributions have been measured at the end of the ducted assembly and perpendicular to the duct axis by means of Indium thermal detector. The experimental facility and the detector activity measurement techniques are described. Results concerning injector ducts with different diameters are graphically represented. Calculations to analyse the experimental results are given.