Iodine Monitors


Extremely low levels of  I-131 can travel great distances in molecular or organic form and are trapped on high efficiency absorbent thermoplastic cartridges which contain an impregnated activated carbon and detected using a 1 1/4 x 1" NaI (TI) scintillation detector. These iodine detection systems can be configured on either mobile or fixed platforms.

  • Embedded 241 Am source for energy spectrum stabilization against temperature changes and aging
  • 1024 channels spectrum analysis
  • 1E qualification and embedded safety-related software
  • Available under 10 CFR 50 App.B, IEC61226 and ASME NQA-1 programs for safety related application


Show Product Comparison Table

Product Family Comparison

RangeQualificationDetectorExample of application
IM 201L
IM 201S
10-10 to 10-4 µCi/cc
3.7 to 3.7 106 Bq/m3
1E QualifiedNaI , 1" x 1" 1/4 Auxiliary building stack iodine activity
Radwaste building exhaust iodine activity
Extreme T°:
-5°C to 55°C
+23°F to +131°F
100 Gy
104 rad
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