PROBLEM TO BE SOLVED: To provide a high-performance scintillator having a high energy resolution and also capable of high speed operation by increasing emission intensity and shortening emission lifetime.

The invention relates to a heat-transporting fluid and to the use thereof. The heat-transporting fluid of the invention is formed of an aqueous colloidal sol including water and up to 58.8 wt%, relative to the total fluid weight, in a-Al2O3 particles, the thickness of which is the smallest dimension and less than or equal to 30 nm. 90% to 95% of said a-Al2O3 particles have a size less than or equal to 210 nm, among which 50% have a size less than or equal to 160 nm. The invention is of use in th...

The invented process for preparing nanoparticulate scintillator based on zinc oxide with high intensity luminescence in VIS region optionally in UV spectrum is characterized in that photochemically sensitive aqueous solution containing zinc salt and OH radical trap optionally Hi2Oi2, and eventually PVA as stabilizer, are irradiated by UV radiation. Solid product is the separated, dried at a temperature up to 40 degC and subsequently heat treated in air or in vacuum at a temperature above 600 deg...

PROBLEM TO BE SOLVED: To provide a gasket for nuclear power plants suitably usable as a substitute of an asbestos-based gasket in piping or the like of nuclear power plants by limiting chloride ion concentration still lower than the general standard (less than 100 ppm) and by suppressing heat creep and corrosion of metal flanges as much as possible.

TECHNETIUM-99M-LABELED DIAGNOSTIC AGENT FOR KIDNEY SCANNING AND PROCESS FOR ITS MANUFACTURE A diagnostic agent for the visualization of the kidneys is disclosed as well as a process for its manufacture. The new agent consists of pyrrolidinomethyl-tetracycline in a buffer solution, a tin(II) salt and technetium-99m in physiological sodium chloride solution.

The invention provides a novel crystalline potassium salt of beta -nicotinamide adenine dinucleotide phosphoric acid ( beta -NADP-K), having a primitively orthorhombic crystal system, which salt is more pure and more stable than the conventional amorphous form, and is advantageously not hygroscopic. The novel salt is produced by treating a dilute aqueous solution of the potassium salt of beta -nicotinamide adenine dinucleotide phosphoric acid with a hydrophilic water soluble organic solvent at a...

A diagnostic agent for the visualization of the kidneys is disclosed as well as a process for its manufacture. The new agent consists of pyrrolidinomethyl-tetracycline in a buffer solution, a tin(II) salt and technetium-99m in physiological sodium chloride solution.