SOR-R/T

SOR-R/T
Ambient/LLR and Tactical Electronic Dosimeter

NATO supplier n° F8929 / Development status: Series production




Feature Highlights

  • Assignable electronic dosimeters
  • Waterproof, light and small
  • Rugged for battlefield use
  • Hand free communication through clothing layers


An important special feature of the SOR line is its ability to meet the needs of various applications with one product. Given its multi-detector architecture, the measurement range’scoverage is broad, and includes high level gamma and neutron dose rates as well as low level radiations (L.L.R).

These dosimeters are qualified in accordance with current military and civil standards. The SOR line has even exceeded some of the standards currently in use in order to account for harsh operational environments. The SOR dosimeter has been selected by most NATO countries. The SOR dosimeter line is built upon two basic versions:

  • the SOR/T for tactical (gamma and neutron) and residual/ambient gamma measurements
  • and the SOR/R for residual/ambient gamma measurements

The SOR line has even exceeded some of the standards currently in use in order to account for harsh operational environments. The SOR dosimeter has been selected by most NATO countries.


Functional Description

  • Redundant architecture with passive measurement components *
  • Selectable units: cGy; cGy/h; mSv; mSv/h; mrem; mrem/h
  • 4 configurable dose and dose rate alarm levels
  • Typical one year lifetime with standard battery
  • User selectable display modes
  • Backlighted display (option)
  • Periodic exhaustive self-testing including the detector
  • Historical record of measurements and events (750 steps; 10 s; 1 min ;10 min; 1 h; 24 h)
  • Data storage in EEPROM (qualified > 10 years without battery)
  • Battery low (16 h) pre-alarm and alarm if the battery is removed
  • Neck lanyard or clip
  • Real time teledosimetry transmission (up to 1000 m – 3281 ft range) for SOR/R
  • Training mode included (a specific configuration software is required for the XOM reader)


SOR Worn Round The Neck

Physical Characteristics

  • Hp(10) dose equivalent measurements
  • Flash gamma dose measurement*: 5 cGy to 10 Gy
  • Flash neutron dose management*
  • Relative error of flash measurement*: ± 30 % over measurement range
  • Ambient gamma dose measurement range:  1µGy to 10 GySOR
  • Gamma dose rate measurement range:  from 0.1 µGy/h to 10 Gy/h
  • Gamma dose rate display:  from 1 or 10 µGy/h to 10 Gy/h
  • Saturation indication  (above 10 Gy/h)
  • Relative error of ambient measurement: o ± 20 % over the dose measurement range
  • Energy response :
    • o <± 20 % in the range 60 keV to 2 MeV
      o <± 50 % in the range 2 MeV to 6 MeV

  • Accredited factory calibration to IEC 17025
  • Accuracy <± 10 % (137Cs, ~ 25 mSv/h including ± 5 % of extended uncertainty K=2)


Mechanical Characteristics

  • Dimensions : 80.4 x 48 x 9 mm (flat housing) / (3.16 x 1.85 x 0.35 in)
  • Weight : 55 g (1.94 oz)


SOR Inside The Arm-Band Pouch (accessory)

Environmental Characteristics

  • -20° to + 50°C (-4°F + 122°F) (normal operating range, standard battery 3V LiMnO2 CR2450)
  • -40° to + 50°C (-40°F + 122°F) (option with battery  module 3.6V LiSoCl2)
  • TREE protection (SOR/R and SOR/T)
  • Resistant to EMP, EMC, radars
  • Resistant to water immersion (IP67: 1 m / 39.3 in) , drops, shocks,vibrations, low pressure
    • Initial conditions, NBC environmental conditions
  • Complies with the following standards:
    • Meets MIL-STD-810 and MIL-STD-461 requirements
    • Qualified by most of the NATO military laboratories
    • Complies with IEC 1283, ANSI 42-20 and NATO D104



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* Special characteristics of the SOR/T

"If everyone is thinking alike, someone isn’t thinking."

—General George Patton Jr.

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