RADIOMETRIC INDICATOR Russian patent published in 2006 - IPC G01T1/17 G01T1/20 

FIELD: registration of ionizing radiation.

SUBSTANCE: radiometric indicator belongs to radiometric devices for indicating of presence of ionizing radiation sources which have intensity to be higher than preset level radiation background level. Indicator has ionizing radiation detector, pulse amplifier, re-counting circuit, timer and registrar which has output connected with pulse counter. Indicator also has three AND gates. First input of first AND gate is connected with output of re-counting unit and second input of the same gate is connected with inverter. Two other AND gates are connected in series in such a way that first input of second AND gate is connected with output of re-counting unit, its second input is connected with output of registrar and output of the gate is connected with first input of the thirds AND gate. Second input of third AND gate is connected with output of pulse counter through inverter and output of the third AND gate is connected with input of pulse counter.

EFFECT: improved precision of determination of ionizing radiation threshold level.

2 dwg