Carbothermic synthesis of high purity plutonium nitride from plutonium oxide.

Plutonium problems.

Contaminants in Fish From the icy waters of Boston Harbor to the warm waves of San Diego Bay, bottomdwelling fish suffer liver damage caused by chemical contaminants, according to researchers at the National Oceanic and Atmospheric Administration. But seafood lovers need not panic, because damaged specimens were captured primarily in urban waters where commercial fishing is prohibited, said Lyn...

Plutonium-Xenon systematics of Angrites

Introduction: Angrites are igneous meteorites that crystallized very early in the solar system, ~10 Ma after CAIs, as also implied by the presence of now extinct short-lived radionuclides such as Mn, Sm and Pu [1]. Fission Xe was used to calculate Pu-Xeretention ages of eucrites, relative to that of Angra dos Reis (AdoR) [2]. AdoR has an absolute Pb-Pb age of 4557.8 Ma [see 1 for ref.]. Most eu...

Neutron spectroscopy of plutonium oxide using matrix unfolding approach

The knowledge of a neutron energy spectrum is extremely valuable in nuclear non-proliferation and safeguards applications. Unfortunately, conventional gas and fission-type detectors are not adapted to determine incident neutron energy. As a result, a matrix inversion technique was implemented to generate desirable and consistent neutron energy spectra from an EJ-309 liquid scintillator. To over...

Toxicological Profile for Plutonium

Plutonium accumulation from long-term occupational exposure.

~b~tr~ct -hdy~a of tissue aiiquota from a plutonium procesi operptor, who had batr; -.._ eXp0iEaG-P~~ largely via chronic low-level inhalation for appmximately 6 out of' 11) ycan of employment, showed that he had accumulated a body burden of approxhatcly 0.018 pc. Estimations of his body burden from hk urine assay record ranged Gom 0.019 to 0.034 highat plutonium concentrat& (125 d m / m i n pa...