Radiometech

BARS

NUCLEAR RADIATION AND NEARBY NUCLEAR EXPLOSION MONITOR

The BARS device is a standalone nuclear radiation detector that offers a wide measurement range, from background levels to lethal dose rates. Measurements are taken at two points: within the management unit and through a probe. The device is equipped with an ultra-fast detector capable of detecting nearby nuclear explosions (equivalent to 800 kT of TNT) at distances of 60-80 km. The module allows for immediate issuance of instructions to personnel and automatically switches ventilation to internal mode in the event of a detected threat.

The extended version of the BARS device also includes an optical indicator for the geographical direction of an airborne nuclear flash. Nuclear explosion detection is performed using semiconductor detectors, which minimizes the risk of damage from a nuclear electromagnetic pulse (NEMP). The device has been tested in an electric field with an intensity of up to 1 kV/m².

Applications:

  • Fallout shelters
  • Civil defense

Versions:

  • BARS-1NUC – Basic version
  • BARS-1NUCGEO – Version with geographical direction indication of a nuclear flash

Technical parameters:

• Dose rate (DER) measurement at two points (inside the shelter and outside using the probe).
• DER measurement range of the management module: 100 nSv/h to 100 mSv/h
• DER measurement range of the probe module: 100 nSv/h to 3 Sv/h
• Gamma radiation energy detection range: 0.4 to 2.0 MeV
• Ultra-fast detection of airborne nuclear explosions up to 80 km from the detector (gamma-neutron pulse with a detection threshold of (1 µSv∙s)/10)
• Detection of the geographical direction of the nuclear explosion light pulse
• External and auxiliary power input: 12-24V, 500mA; internal rechargeable battery (up to 6 hours of operation)
• 2 relay outputs (max. 3A 250V) for issuing commands to close LO or LOH
• 2 relay outputs (max. 3A 250V) for issuing commands to switch ventilation
• 1 alarm output (max. 3A 250V)
• Resistance to electric fields up to Ef = 1 kV/m²
• Built-in test mode
• Enclosure standard: IP56
• Maintenance-free operation: up to 10 years
• Maximum probe cable length: 10 m
• Management module dimensions: 223x147x83 mm
• Probe module dimensions: 115x65x30 mm
• Total weight: <3 kg
• Front panel language options: Polish, English, or Ukrainian/Russian.

Harmonized standards compliance:

• IEC61326-1
• IEC61000-3-2
• IEC6100-3-3
• IEC61000-4-2
• IEC6100-4-3
• IEC61010-1

BARS-1NUC BASIC VERSION

BARS-1NUCGEO VERSION WITH GEOGRAPHICAL DIRECTION INDICATION OF A NUCLEAR FLASH