Probing the Redox Reactivity of Alkyl Bound Astatine: A Study on the Formation and Cleavage of a Stable At-C Bond.

The formation of a stable alkyl At-C bond occurs during the shipment of At on a 3-octanone-impregnated column and the reactivity of At stripped from columns has been studied. The At could not be recovered from the 3-octanone organic phase using nitric acid or sodium hydroxide, even up to 10 and 15.7 M, respectively.

Production, isolation, and shipment of clinically relevant quantities of astatine-211: A simple and efficient approach to increasing supply.

Unlabelled: The alpha emitter astatine-211 (At) is a promising candidate for cancer treatment based on Targeted Alpha (α) Therapy (TAT). A small number of facilities, distributed across the United States, are capable of accelerating α-particle beams to produce At. However, challenges remain regarding strategic methods for shipping At in a form adaptable to advanced radiochemistry reactions and other uses of the radioisotope.

Complexation of Astatine(III) with Ketones: Roles of NO Counterion and Exploration of Possible Binding Modes.

Ketones have been proven effective in extracting astatine(III) from aqueous solvents. Previous theoretical studies suggested a mechanism where the "sp" lone pair on the carbonyl oxygen donates electron density into the π system of the AtO molecular cation to form a dative-type bond. In this study, co-extraction of NO as AtO(NO)·(O═CRR) species into the organic phase appears to be a key factor.

A heavy-ion production channel of Tb via Cu bombardment of Y.

The radionuclide Tb (t = 4.1 h) is a potential theranostic isotope which can simultaneously be used for targeted-alpha-particle therapy and positron-emission tomography. Feasibility experiments were performed to test a near-symmetric heavy-ion reaction of Cu bombardment on monoisotopic Y.

The SπRIT time projection chamber.

The Superconducting Analyzer for MUlti-particles from RAdioIsotope (SAMURAI) Pion-Reconstruction and Ion-Tracker Time Projection Chamber (SπRIT TPC) was designed to enable measurements of heavy ion collisions with the SAMURAI spectrometer at the RIKEN radioactive isotope beam factory and provides constraints on the equation of state of neutron-rich nuclear matter. The SπRIT TPC has a 50.5 cm drift length and an 86.