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Passive and active neutron correlation techniques used at the JRC Ispra in the field of non-destructive assay of fissile material are discussed. The passive neutron assay instrument consists of a neutron detection head, analog chains and a neutron train analyser. It is used to determine the spontaneous fission rate of plutonium isotopes with even mass numbers. Phonid and AWCC, the instruments used for active neutron interrogation on uranium samples, are described and the two systems are compared using PERLA standards.

Additional information

Authors: VOCINO E ET AL., JRC Ispra (IT)
Bibliographic Reference: Paper presented: IAEA Symposium on International Safeguards, Wien (AT), March 14-18, 1994
Availability: Available from (1) as Paper EN 38114 ORA
Record Number: 199410626 / Last updated on: 1994-11-28
Original language: en
Available languages: en
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