Apparatus and method for quantitatively evaluating total fissile and total fertile nuclide content in samples

Simultaneous photon and neutron interrogation of samples for the quantitative determination of total fissile nuclide and total fertile nuclide material present is made possible by the use of an electron accelerator. Prompt and delayed neutrons produced from resulting induced fissions are counted usi...

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Bibliographische Detailangaben
Hauptverfasser:	FRANKS, LARRY A, KUNZ, WALTER E, CALDWELL, JOHN T, CATES, MICHAEL R
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	Simultaneous photon and neutron interrogation of samples for the quantitative determination of total fissile nuclide and total fertile nuclide material present is made possible by the use of an electron accelerator. Prompt and delayed neutrons produced from resulting induced fissions are counted using a single detection system and allow the resolution of the contributions from each interrogating flux leading in turn to the quantitative determination sought. Detection limits for 239Pu are estimated to be about 3 mg using prompt fission neutrons and about 6 mg using delayed neutrons.