Бортовий прилад радіаційної розвідки ДРГ-Т

Radiation Reconnaissance Device

DRG-T

NSN 6665 61 005 4540

ТУ У 33.2-22362867-011:2009

The board radiation survey device that generates signals and commands for crew life support systems.

The device is designed for installation in special-purpose vehicles, in particular in radiochemical reconnaissance units of civil defense, and armed forces. It is used for continuous monitoring of gamma radiation exposure dose rate. DRG-T provides audio and visual alarms of dangerous levels of gamma radiation and generates commands to start the actuators of protection equipment.

The device is endowed with high shock and vibration resistance.

Features

Highly resistant to shock and vibration
Considers different attenuation degrees of gamma radiation
Produces signals to display information on data panels of the vehicle
Issues commands to start the actuators of crew protection equipment
Ensures self-testing function of the device performance with and without commands issuing to the actuators
Transfers data to the onboard computer
ІР56 ingress protection rating

Purpose of Use

The DRG-T radiation survey device is designed for use in special-purpose vehicles to control continuously and measure exposure dose rate (EDR) of gamma and X-ray radiation, as well as to provide audio and light alarms of dangerous levels of radiation, and to issue commands to start the actuators of protection equipment

Delivery Kit

DRG-T Radiation Reconnaissance Device
operating manual
logbook
mounting parts kit
packing box

Specifications

Measurement range of gamma radiation EDR

1·10^-5 ... 1 000 R/h

Energy range of detected gamma radiation

0.66 ... 1.25 MeV

Main relative permissible error limit during measurement of gamma radiation EDR (relative to ¹³⁷Cs) with confidence probability of 0.95, where Ẋ is a numeric value of measured EDR in miliroentgens per hour

δẊ = (15+0.2/Ẋ) %

Energy dependence of the device readings during measurement of gamma radiation

±25 % within the range of 0.66 ... 1.25 MeV

Operating temperature range

-40 ... +60 ºС

Dimension parameters of the device

160 × 160 × 66 mm

Weight of the device is not more than

2 kg

Mean time between failures is not less than

4 000 hrs

Mean service life is not less than (including scheduled maintenance in 10 years)

20 years

Current consumption at rated voltage of 24 V is not more than

1.0 А

The device is powered from the DC onboard mains of

9.0 ... 28.5 V

Mean shelf life is not less than

15 years

The device generates commands and signals in the presence of gamma radiation (during not less than 3 s) in the place of the device location with gamma quanta energy of 0.66 MeV, EDR of which exceeds the threshold level “R” (EDR more than 50 mR/h)

The device generates commands and signals in the presence of gamma radiation (during not less than 0.1 s) in the place of the device location with gamma quanta energy of 1.25 MeV, EDR of which exceeds the threshold level “A” (EDR more than 14 400 R/h)