Personal Radiation Detection Devices Products Hawk EMS Radiation Probe

Description:

The probe detects ionizing events and transmits pulses to a data logger or other computer. The radiation levels are measured in counts per minute (CPM). A background count is normal due to naturally occurring sources both terrestrial and celestial. Generally 25 to 100 CPM is considered typical depending on location and environmental factors. With the presence of increased ionizing radiation the count rate will increase accordingly.

If a count rate is very high or exceeds 20,000 CPM for example it may be necessary to apply a dead-time correction in the program of the computer or data logger. Dead time is 136 μs. When using the probe to detect low levels of unusual ionizing activity dead-time compensation will not be a concern.

Applications:

•  Industrial Facilities
•  Scientific and Research Facilities
•  Building Entry Points and Perimeter Security
•  Nuclear Power Plants
•  Oil and Gas Drilling
•  Medical Facilities
•  Homeland Security
•  Community protection
•  Customs and Border Security
•  Shipping Ports and Harbors
•  Monuments, Stadiums, Arenas, and Convention Centers

Features:

•  Wall or tripod mountable
•  Probe can be mounted nearby or set up several thousand feet away from the control module either indoors or outdoors
•  Can be used with the Hawk EMS® System or other computer
•  Optional output to control external devices when an alarm occurs
•  Suitable for industrial and security applications

*Specifications:

Detector 1: Halogen-quenched “pancake” Geiger-Müller 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-Müller 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: -20° to 85°C (-4° to 185°F)

Power Requirements: 3.0 to 15.0 V DC

Current Drain: <1 mA (typical) to 20 mA (max) @ 12 V DC

Lightning Surge Protection: to 600 watts for 1 ms

ESD Protection: up to 16 kV

Probe Housing: Anodized aluminum and polycarbonate/ Water resistant

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

Dimensions: (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

Weight: 21.1 oz. (599 gr.) With Bracket: 25.6 oz. (726 gr.)

L-Bracket: 6.25″ x 3.25″ x 2.25″ (157 mm x 83 mm x 57 mm)
Thickness 0.1″ (2.54 mm)

Options and Accessories: Replacement window shield, window screen without mylar, RS-232 or USB 2.0 cable kit, quick-release pole-mount adaptor, USB data acquisition adapter, calibration fixture

*Specifications subject to change without notice.


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