IMI Hawk Radius® Probe Description：

Datasheet

The Hawk® Radius is a ruggedized solution for monitoring both ambient and elevated levels of ionizing radiation. Like a Hawk with its remarkable vision, the Hawk Radius Probe “sees” things that other probes cannot. The high sensitivity weatherized pancake sensor can provide early warning of changing ambient radiation conditions, while the energy compensated detector can accurately report penetrating gamma radiation dose rate at elevated levels. Radius probes are typically deployed as part of an environmental radiation monitoring program, or for safety and security systems. In its standard configuration the probe detects beta, low energy gamma and x-radiation with one channel and energy compensated penetrating gamma radiation levels with a second channel. It can be configured to detect alpha radiation as well. The Hawk® Radius has been deployed worldwide in demanding conditions for protecting communities and collecting environmental radiation data. It can be deployed easily and requires minimum maintenance.

Forindoor or outdoor environments

Ruggedized for challenging environments

Two sensor system: weatherized pancake plus EC GM

Detects Noble Gases including Xe-133, Kr-85

Energy-compensated detector for penetrating Gamma

Compatible with all major data loggers & Hawk® EMS

Numerous data communications options

Share data in open or closed networks

Field deployable or fixed location use

Waterproof

Extremelylow power consumption

Easy to install and operate

Customizable for wireless data networks

Can be powered by small Solar panel

Technical Specifications

• Detector 1: Halogen-quenched “pancake” Geiger-Mueller tube (LND 73126). Effective diameter 1.75″ (45 mm). Mica window density 1.5-2.0 mg/cm²
• Gamma Sensitivity: 3500 CPM/mR/hr referenced to Cs-137
• Beta Efficiency (for 4Π at contact):
  14C: 49 keV avg., 156 keV max., 5.3%
  210Bi: 390 keV avg., 1.2 MeV max., 32%
  90Sr: 546 keV avg., 2.3 MeV max, 38%
  32P: 693 keV avg., 1.7 MeV max., 33%
• Measurement Range: 0 to 5 mR/hr or 0 to 18,000 CPM calibration check, typical maximum 10 mR/hr or 35,000 CPM
• Window Shield: NCR2/2 Mylar laminated to a copper beryllium screen
• Detector 2: Halogen-quenched energy compensated Geiger-Mueller tube (LND 7128). Effective diameter .36″ (9.1 mm)
• Gamma Sensitivity: 1000 CPM/mR/hr referenced to Cs-137
• Measurement Range: 0 to 5 mR/hr calibration check, typical maximum 10 mR/hr or 10,000 CPM
• Temperature Range: -40° to 75°C (-40° to 167°F)
• Power Requirement: 3.5 to 15 V DC
• Current Drain: <1 mA (typical) at background radiation levels, to 25 mA (max) @ 12 V DC in high fields.
• Lightning Surge Protection: to 600 W for 1 ms
• ESD Protection: up to 16 kV
• Size (L x W x H): 6.25″ x 3.15″ x 2.35″ (157 mm x 78 mm x 60 mm). Connector adds 0.6″ to length.
• L-Bracket: 6.25″ x 3.25″ x 2.25″ (157 mm x 83 mm x 57 mm). Thickness 0.1″ (2.54 mm).
• Probe Weight: 21.1 oz. (599 gr.) With Bracket: 25.6 oz. (726 gr.)
• Probe Housing: Anodized aluminum and polycarbonate. Designed for outdoor use.
• Cable: Waterproof. RFI-shielded. UV-resistant jacket. 10 meter length.
• Connector: M12 Euro. Waterproof. RFI-shielded.
• Computer Interface: Optional cable with RS-232 or USB 2.0 interface.