The coincidence spectrometer consists of two scintillation spectrometers, each of which can be used as either a beta-ray or a gamma-ray spectrometer, depending on what crystals are used. The pulses from the first spectrometer are analyzed with a single channel analyzer. The pulses corresponding to a certain energy are picked out with the analyzer and are fed into one channel of a coincidence ci...

We have developed a miniature (1.2 cm2) beta-ray camera prototype to assist a surgeon in locating the margins of a resected tumor. With this technique, one directly detects betas emitted from exposed radio-labeled tissue. When imaging positron emitting radiopharmaceuticals, annihilation gamma ray interactions in the detector can mimic those of the betas. The extent of the background contaminati...

A neutral compound Re(CO)(3)(L) (L: 2-((2-(2,6-diethylphenylamino)-2-oxoethyl)(2-ethoxy-2-oxoethyl)amino)acetic acid, an IDA analogue) has been synthesized and evaluated for in vitro imaging probes of beta-amyloid (Abeta) aggregates. Results of X-ray measurement of Re(CO)(3)(L) demonstrated that the coordination mode of Re(CO)(3)(L) was different from that of classical Re/Tc(I) (tricarbonyl)-ID...

Vanillin, a food additive, has been evaluated as a potential agent to treat sickle cell anemia. Earlier studies indicated that vanillin had moderate antisickling activity when compared with other aldehydes. We have determined by high performance liquid chromatography that vanillin reacts covalently with sickle hemoglobin (HbS) both in solution and in intact red blood cells. Hemoscan oxygen equi...

We present X-ray photoelectron, Co $${{L}_{{2,3}}}$$ and O K absorption, as well $$K{{\beta }_{{1,3}}}$$ emission spectroscopy results of studies the spin states trivalent cobalt ions in single-crystal cobaltite LaCoO 3 . show that at room temperature, bulk a single crystal, 3+ are low-spin state, while high-spin 2+ , probably also intermediate-spin located on surface.