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Searcher Mk 6 “Back Scatter”


Falcon was developed for the British Ministry of Defence. The use of “gamma backscatter” was employed by British counter-terrorist forces quite successfully and then sold to many similar forces around the world. 

The Mk 6 Falcon is a portable, lightweight device that detects the presence of hidden organic material (explosives, drugs, etc.) by highlighting unexpected variance in the density or thickness behind barrier material (truck skin, walls, etc.). For example, the natural space within a wall or car door will show a lower reading than one that contains hidden drugs or explosives (or other organic material).

The Search Head will emit a beam of energy into the area being inspected. This will measure the backscatter. If there is a space filled with organic material (drugs, explosives, etc.) it will reflect back more energy than would an empty space.
The unit is initially zeroed to the surface being searched (e.g. car door, wall, truck trailer skin). It is then operated with a sweeping motion in a pattern so that no spot is missed. A visual LED array and sound will indicate whether there is any variation in the space (e.g. additional object or substance).
Falcon Back Scatter


Following considerable R&D a world-first in imaging capability.  A laptop highlights anomalies and helps to discount false positives. It is connected to the search device via transmitters and receivers.  The searched area is wirelessly transmitted to the lap top where it is highlighted by a colored display.


Technical Specifications

Detector      Csi (TI) Scionix scintillation crystal
Source           Sealed source Barium 133 (Ba 133)
Activity          37 MBq
Protective Shielding    Tungsten alloy
Audio Volume               64 – 76 dBA @ 10 cm (4 inches)
Visual display                 LED array
Earpiece       Audio output for covert audio alarm
Battery          4 x AA cells (included)
Head               250mm x 130mm (9.8 in x 5.1 in)
Handle           560mm / Extended 1070mm (22 in / 42 in)
Weight          2.4kg (2.9kg with handle – 6.39 lb)


  • Search Head
  • Telescopic Handle
  • Battery Charger
  • Rechargeable batteries
  • Charger Adapters
  • Ear piece
  • Spare Slipper
  • Laptop
  • Software
  • Wireless transmitters
  • Flat head screw driver
  • Operation Manual
  • Hard Case