Apparatus for the characterization of fissile material

Details Apparatus for the characterization of fissile material Apparatus for the characterization of fissile material

G - Physics

01

N

359/37

G01N 23/222 (2006.01) G01T 3/06 (2006.01)

Patent

CA 1325293

DESCRIPTIVE ABSTRACT FISSILE MATERIAL CHARACTERIZATION APPARATUS It comprises an enclosure, a neutron emitting source (29) for bombarding said fissile material, means (28, 30) for introducing source (29) into the enclosure and for removing said source from the enclosure, neutron radiation detection means (9), moderator means (2, 4, 6) for thermalizing a fission radiation emitted by said fissile material interposed between the neutron radiation detection means (9) and the fissile material. It also has gamma radiation detection means (6, 14), which comprise a scintillator (6) and at least one photomultiplier (14) associated with said scintillator (6) and the scintillator material also constituting the moderator for thermalizing the fast neutrons directly emitted by the source (29), as well as the neutrons from the spontaneous fissions of the .alpha., n reactions and the neutrons from the fissions induced in the fissile material, the neutron radiation detectors (9) being embedded in the scintillator material (6) constituting the moderator. (Fig. 1)

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