Packard Instrument B.v.

James Thomson

Jan Ter Wiel

Harry Van Lune

Herbert M Bosel

Gerhard H Kremer

A scintillation counting system utilizing scintillator capsules for the detection of radioactive substances in a sample for analysis include a liquid scintillator core encapsulated within a shell. The liquid scintillator comprises a base component or components and one or more fluors. The base component preferably includes one or more aromatic solvents. The fluors useful in the liquid or gel scintillator include any of the organic fluors well-known in the scintillation counting art. The liquid or gel scintillator can also include a wavelength shifter (i.e. secondary fluors). Useful wavelength shifters are also well known in the scintillation counting art. Additionally, a other materials can be added to the scintillator capsules to modify the characteristics of the scintillator capsules, and the scintillator capsules can be used in a variety of scintillation counting applications.

Scintillation counting system using scintillator capsules

An adhesive plastic scintillator which can be attached onto a solid support medium such as a microtiter plate, either by melting it in and/or on a solid support medium because the plastic scintillator is capable of being changed between solid and liquid phases, whichever is desired, by temperature control, or by deposition from a solution of said adhesive plastic scintillator. The plastic scintillator is for analyzing radioactive samples and comprises fluorescent substances and optionally energy transfer compounds for converting radiation energy into light energy. The plastic scintillator remains transparent upon transition from the liquid to the solid state, and upon the same transition adheres to the solid support medium.

Adhesive plastic scintillator

A liquid scintillation medium for homogeneous flow systems which comprises solvent, fluor and optionally surfactant, wherein the solvent comprises benzyltoluene. The solvent may comprise the positional isomers of benzyltoluene, and other solvents such as diphenylethane. This new solvent system for use in flow-through scintillation counting is characterized by low viscosity, high flash point and low vapour pressure.

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Bedum, Netherlands

James Thomson