Français

Noble Gas Monitors

PRODUCT LINE DESCRIPTION

Safety and non-safety noble gas systems are available that detect noble gas (such as argon, krypton, and xenon) and tritium in radioactive effluents in both low and high range configurations and either under normal or accident conditions. Used as a stand-alone or in conjunction with other monitors, these self-contained systems provide gamma background compensation and consist of modular components.  

  • Calculates total released activity and flow rate signal provided
  • 1E qualification and embedded safety-related software
  • Available under 10 CFR 50 App. B, IEC 61226 and ASME NQA-1 programs for safety-related application

 

Show Product Comparison Table

Product Family Comparison

RangeQualificationDetectorExample of application
NGM 202L
Measurement:
2.7 10-7 to 10-1 µCi/cc
104 to 3.7 109 Bq/m3
Non 1E qualifiedIonization chamber Auxiliary building stack beta gas
Ventilation ducts activity
Extreme T°:
-5°C to 55°C
+23°F to +131°F
NGM 203SMeasurement:
10-4 to 2.7 10+5 µCi/cc
3.7 106 to16 Bq/m3
1E QualifiedIonization chamber Reactor coolant system activity
Gaseous waste disposal activity
Discharge stack high range
Extreme T°:
-5°C to 55°C
+23°F to +131°F
TID:
100 Gy
104 rad
NGM 204L
NGM 204S
Measurement:
10-6 to 2 103 µCi/cc
3.7 104 to 7.4 1013 Bq/m3
1E QualifiedDual silicon detector Radwaste building service noble gas
Containment activity during shut down
Condenser air removal activity
Extreme T°:
-5°C to 55°C
+23°F to +131°F
TID:
100 Gy
104 rad
NGM 216SMeasurement:
10-7 to 10-1 µCi/cc
3.7 103 to 3.7 109 Bq/m3
1E QualifiedPlastic scintillator Containment activity
Main control room supply air duct
Plant vent
Extreme T°:
0°C to 60°C
+32°F to +140°F
TID:
100 Gy
104 rad
Select a Country to View Your Nearest Mirion Contact.