Two simple class-F NVI1VIIC power amplifiers are described using 0.7tm field-plated GaN HEMT devices. One circuit was designed for operation at 2.0 GHz and achieved a power-added-efficiency of 50%, 38 dBm output power, and 6.2 W/mm power density. A second circuit was designed at 2.8 GHz and achieved a PAE of 46% with 37 dBm output power and 7.0 W/mm power density.

UNLABELLED (131)I-metaiodobenzylguanidine (MIBG) is specifically taken up in neuroblastoma, with a response rate of 20%-37% in relapsed disease. Nonradioactive carrier MIBG molecules inhibit uptake of (131)I-MIBG, theoretically resulting in less tumor radiation and increased risk of cardiovascular toxicity. Our aim was to establish the maximum tolerated dose of no-carrier-added (NCA) (131)I-MIB...

In connection with the production of 46.2 min Mn via the Cr(d, n)-process, several separation techniques such as ion exchange chromatography, solid phase extraction, liquid–liquid extraction and co-precipitation have been investigated; the aim was to separate no-carrier-added radiomanganese from the bulk target chromium. Among the separation systems ∗MnII/CrIII , ∗MnII/CrVI and ∗MnIV/CrVI, the ...

4-[F]Fluoroiodobenzene ([F]FIB) is a versatile building block in F radiochemistry used in various transition metalmediated C–C and C–N cross-coupling reactions and [F]fluoroarylation reactions. Various synthesis routes have been described for the preparation of [F]FIB. However, to date, no automated synthesis of [F]FIB has been reported to allow access to larger amounts of [F]FIB in high radioc...

In an earlier report (l), we described the preparation, from sheep thyroid glands, of a particulate fraction consisting primarily of mitochondria and microsomes, which, when incubated with carrier-free radioactive iodide, converted as much as 30 per cent of the added 1131 to labeled iodoprotein. This thyroid particulate fraction differed from the cell-free thyroid preparations used by other wor...