Radioizotope gauge for measuring the mass of bulk materials transported with conveyer belt

.The unit consists of a container with a linear radiation source situated under the upper part of the belt conveyor; a scintillation detector installed over the flow of bulk material; a tacho-meter for the speed of the belt conveyor; an electronic data processing unit. The data processing unit consists of parallelly connected pulse emplifier, descriminator, linear meter, level normalizer, linearizor, analogue multiplierintegrator, digital counter, voltage regulator. The scintillation detector consists of consequently optically connected crystal spectrophotometric scintillator, a plastic scintillator a few times longer than the spectrophotometric scintillator, and a spectrophotometric multiplier directed perpendicularly to the emission exis. The stubilizer unit is connected to the gamma emitting linear radioizotope source through the scintillation detector