title: Nuclear forensic analysis of a non-traditional actinide sample.
abstract: Nuclear forensic publications, performance tests, and research and development efforts typically target the bulk global inventory of intentionally safeguarded materials, such as plutonium (Pu) and uranium (U). Other materials, such as neptunium (Np), pose a nuclear security risk as well. Trafficking leading to recovery of an interdicted Np sample is a realistic concern especially for materials originating in countries that reprocesses fuel. Using complementary forensic methods, potential signatures for an unknown Np oxide sample were investigated. Measurement results were assessed against published Np processes to present hypotheses as to the original intended use, method of production, and origin for this Np oxide.
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States. Electronic address: doyle@lanl.gov.
authors.forename: Jamie L
authors.initials: JL
authors.lastname: Doyle
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Kevin
authors.initials: K
authors.lastname: Kuhn
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Byerly
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Lisa
authors.initials: L
authors.lastname: Colletti
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: James
authors.initials: J
authors.lastname: Fulwyler
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Katherine
authors.initials: K
authors.lastname: Garduno
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Russell
authors.initials: R
authors.lastname: Keller
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Elmer
authors.initials: E
authors.lastname: Lujan
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Alexander
authors.initials: A
authors.lastname: Martinez
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Steve
authors.initials: S
authors.lastname: Myers
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Donivan
authors.initials: D
authors.lastname: Porterfield
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Khalil
authors.initials: K
authors.lastname: Spencer
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Floyd
authors.initials: F
authors.lastname: Stanley
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Lisa
authors.initials: L
authors.lastname: Townsend
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Mariam
authors.initials: M
authors.lastname: Thomas
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Laurie
authors.initials: L
authors.lastname: Walker
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Ning
authors.initials: N
authors.lastname: Xu
authors.affiliation: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, United States.
authors.forename: Lav
authors.initials: L
authors.lastname: Tandon
keywords: Chronometry; Neptunium oxide; Np; Nuclear forensics