Radiation Protection Instrumentation
by BIL Solutions

Ambient/LLR and tactical dosimetry

Applications :
Human resources management under NBC threat

Low Level Radiation and Health Physics

Our extensive experience in radiation protection and dosimetry has resulted in a new generation of operational dosimeters, which integrate the specific requirements of the military and civil needs. Building upon the SOR dosimeter, it is a global system concept, which combines products that are consistent and complementary.

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 covered is broad, and includes high level gamma and neutron dose rates as well as low-level radiations (L.L.R).

Another original feature is the hands free reader exchange mode, which can be used with the dosimeter worn under clothing (such as NBC suits), thus eliminating restrictions placed on the wearer while ensuring reliable coverage.

The small size and weight make this equipment ideal for use as field equipment. This equipment is qualified in accordance with current military and civil standards. It has even exceeded some of the standards currently in effect in order to account for harsh operational environments (low temperatures, TREE and EMP resistance, electromagnetic compatibility, water immersion...).

It has been selected by most of 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 including LLR levels
  
  
• the SOR/R for residual/ambient gamma measurements including LLR levels.

and varies according to the case and operating temperatures.

Main Functions

• assignable electronic dosimeters
• Hp dose equivalent measurements
• hands free data exchange transmission, even through clothing
• redundant architecture with passive measurement components **
• selectable units: cGy; cGy/h; mSv; mSv/h: mrem ; mrem/h
• 2 configurable dose and dose rate alarms
• typical one-year lifetime with standard battery
• user selectable display modes
• back lighted display (option)
• periodic exhaustive self-testing including the detector
• historical record of measurements and events (750 steps ; 10 s ; 1 mn ; 10 mn ;  1 h ; 24 h)
• data storage in EEPROM (storage time > 10 yrs without battery)
• battery fault pre-alarm (16 h) and alarm
• neck lanyard or clip
• real time teledosimetry transmission (up to 1000 m range) for SOR/R

Performances

• flash gamma dose measurement** : 5 cGy to 10 Gy
• flash neutron dose measurement** : 5 cGy to 10 Gy
• relative error of flash measurement** : +/- 30 % over measurement range
• ambient gamma dose measurement range : 1µGy to 10 Gy
• gamma dose rate measurement range : from background 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 : < +/- 20 % over the dose measurement range
• energy response :
  o < +/- 5 % at the calibration value (137Cesium)
  o < +/- 20 % in the range 60 keV to 2 MeV
  o < +/- 50 % in the range 2 MeV to 6 MeV

Environment

• -20° to + 50°C (normal operating range)
• -40° to + 50°C (extended operating range **)
• TREE protection**
• resistant to EMP, EMC, radars
• resistant to water immersion, drops, shocks, vibrations, low pressure, initial conditions
  
  
• dimensions :80.4 x 48 x 9 mm (flat housing)
• weight : 55 g
  
  
• reference standards :
  o IEC 1283, ANSI 42-20
  o qualification in accordance with MIL - STD-810 standard complies with NATO D104

* LLR : Low level Radiation
** special characteristics  of  the SOR/T