02

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.

Radiometer_RUG-92M

Building of a Radiometer 92.jpg

Dosimeter Belrad-04.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

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 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”

for samples with activity higher than 50 Bq/kg,l	+25%
for samples with activity from 11 to 49 Bq/kg,l	+50%

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