Radiometrics devices
Pilot production of the Institute, produced more than 550 RUG-92, RUG-92–ú, RUG-92–ú-1 oriented towards radiation control of foodstuffs, agricultural and medicinal raw materials. More than 800 dosimeters and combined devices Belrad-04 and their modifications oriented for measuring the levels of equivalent radiation. These radiometric and dosimetric instruments were used in local centres for radiation control of industrial, agricultural enterprises and in forestry.
Building of a Radiometer 92.jpg
Dosimeter BELRAD-04
This dosimeter is intended for operation in the temperature range from -5°C to +40°C and by the relative humidity of 98% (at the temperature +25°C) and by pressure of 84-106.7 kPa.
Technical Features
| range of exposition dose rate of gamma radiation, mR/h | From 0.010 to 9.999 |
Assessment range of flux density of beta particles
from contaminated surfaces, particles/sq.cm. minute From 10 to 5,000 (1/sq.m in second) | from 1.66 103 to 8.33 105 |
| Range of energy of gamma radiation, MeV (femaJ) | From 0.06 to 1.25 (from 9.6 to 200) |
| Fundamental relative error of the isotope caesium-137 exposition dose rate measurement in the above mentioned range of energy | is not higher than ± 30% |
| Time needed to reach the operational state | is not more than 5 seconds |
| Duration of one measurement | 20±5 seconds |
| Duration of operation with fresh battery at the natural radiation background (up to 20 microroentgen per hour | is not less than 200 hours |
| Duration of continuous operation | is not less than 6 hours |
| Battery voltage | 9-2 volt |
| Dimensions (without strap) | are not greater than 45x88x133mm |
| Weight of device with battery | is not more than 0.35 kg |
| Kind of battery | “Korund” |
Automatized Gamma-Radiometer RUG-92M
This gamma-radiometer can be used for the control of agricultural production at enterprises and in laboratories; shows the stability of readings and high reliability in operation.
Technical Features
| range of measurement | 11-37-103 Bq/l,kg - 3.0·10-10-10-6 Ci/kg, l |
Fundamental errors of measurements (with confidence interval 95%)
| for samples with activity higher than 50 Bq/kg,l | +25% |
| for samples with activity from 11 to 49 Bq/kg,l | +50% |
Duration of one measurement
| for samples with activity from 11 to 100 Bq/kg,l | 600 seconds; 1,200 seconds |
| for samples with activity more than 100 Bq/kg,l | 60 seconds |
| Instability within 24 hours | 5% |
| Temperature range | from +10°C to +35°C |
| Power consumption | 20 W |
| Weight without shielding | 5 kg |
| Weight of shielding | 165 kg |
| Operation without failure | 5,000 hours |
| Kind of detector - scintillator, crystal NaJ (T1) | 40×40 mm or 30×70 mm |
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