Distortion and contact free determn. of foodstuff fat concn. factor - uses irradiation with soft X=ray or gamma rays and measures inelastic and elastic radiation dispersions

摘要

Determination system is intended for continuous, or intermittent, testing of organic and/or inorganic substances of lower concentration factor number. It is particularly suitable for quality checking of meat and other food products, especially for determination of their fat, oil and/or water contents. The tested substances are irradiated by a soft X-ray, or gamma radiation. Irradiation produces inelastically and elastically dispersed radiation, both these radiation components being separately measured. The ratio of both components is representative for the lower concn factor number. Preferably the tested substances form a multi-component system and the effective concentration factor number is determined by the radiation ratios. The determination may be used both for industrial or medical purposes in a device containing a highly collimated 241-Am-source and a pure Ge detector with an energy resolution of 190 eV at 5.9 keV. The device contains an amplifier and a multi-channel analyser.