Description

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.

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.

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.

Specifications

Measurement range of gamma radiation EDR from 1×10-5 to 1000 R/h.

Energy range of detected gamma radiation from 0.66 to 1.25 MeV.

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

Energy dependence of the device readings during measurement of gamma radiation is ±25 % within the range of 0.66 – 1.25 MeV.

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 14400 R/h).

The device is powered from the DC onboard mains of 9.0 – 28.5 V voltage.

Current consumption at rated voltage of 24 V is not more than 1.0 A.

Time of continuous operation is not less than 48 hours, with subsequent switching off for not less than 2 hours.

Operating temperature range from -40 to +60 ºС.

Dimension parameters of the device – 160x160x110 mm.

Weight of the device is not more than 4 kg.

ІР56 ingress protection rating.

Mean time between failures is not less than 4000 hours.

Mean service life is not less than 20 years including scheduled maintenance in 10 years.

Mean shelf life is not less than 15 years.

Delivery Kit

• DRG-T radiation survey device;

• operating manual;

• logbook;

• mounting parts kit;

• packing box.

Get To Know More About Radiation

Potential Sources Of Radiation

Food (especially berries and mushrooms)

Food (especially berries and mushrooms) will definitely accumulate radiation if grown in contaminated areas. Mushrooms tend to absorb radiation from soil as well. These are not the best ingredients for your nutrition or home-made jam for sure. We know how dangerous radiation is when it gets into our bodies. It’s always wise to check the radiation safety of our food to enjoy a safe and healthy lifestyle.

Home and office

It is always a great thing to have a safe and productive workplace or just be cozy sitting on your favorite couch at home. But even in your most comfortable zones, is there any chance you can be exposed to radiation? Unfortunately, yes. Furniture can be made of radioactive wood as it absorbs radiation. Granites can have high radiation levels as well. Check the radiation level of all your furniture.

Construction

Remember that construction materials can contain natural radionuclides. That is why when building, choose the materials carefully as they can pose a great threat to your health. When moving to a new place, be sure to check that no radiation is there.

Playground

Radiologically contaminated toys can harm your child’s health. Even a sandbox on a playground can pose a danger. Control radiation levels around to be sure you chose the right place to play with your kids.

Cash

Cash can be radiologically contaminated for definite purposes. The most common one is to track money during special operations, but sometimes these banknotes can end up in our wallets. Even a small amount of radiologically contaminated banknotes can harm a large number of people. Be safe when dealing with cash.

Garden

Radioactive fallouts may contaminate soils in any corner of the world. Be sure to check the radiation levels in your garden if you don’t want to raise contaminated fruits and vegetables. We know that radiation that gets inside of our bodies is the most dangerous.

Travelling

When travelling you can come across the places of buried radioactive scrap metals or other contaminated objects. Caving is such fun if you are not exposed to high radiation levels out there. It is always better to enjoy outside activities if they’re safe.

Jewelry

We should pay great attention when buying necklaces, rings or other jewelry. Precious metals and stones can have high radiation levels, especially zirconium which is the most commonly used in jewelry items. That is why you should be careful if you don’t want to pay a "high" price. Jewelry should be decorative, not destructive.