Mirion Technologies IM 201S - Manual

Featuring:
radiation monitoring
systems
A Mirion Technologies Division
IM 201S
Particulate, Gas & Iodine Monitors
IM 201S
Iodine Monitor
The IM 201S monitor forms part of the RAMSYS
product line. It has been developed to continuously
measure the gamma volumetric activity of radioactive
iodine sample, in both molecular and organic forms
(methyl iodine), contained in air drawn from stacks,
ventilation ducts or working areas.
An NaI scintillation detector faces the activated
charcoal cartridge in which radioactive iodine is
trapped. The proximity of the detector and the
cartridge, enclose within a 4 π/5 cm (4 π/2 in) lead
shielding, serves to optimize detection effi ciency.
A radioactive 241 Am source built into the NaI
christal allows compensation of temperature and
aging related drifts. The spectrometry capability,
based on a 1024 channel spectrum analysis, allows
radio iodine isotope localisation.
APPLICATIONS
• Effl uent release monitoring
○ Stacks, etc.
• Radioprotection of workers
○ Containment atmosphere
○ Control room air, etc.
• Post-accident operations
○ Containment atmosphere
○ Stacks, etc.
RELATED MONITORS
• IM 201L: “light” version
• IM 201M: mobile version
• PING 206S: version with particulate and noble gas
• PIM 206S: version with particulate
FEATURES
● Embedded 241 Am source for energy spectrum
stabilization against temperature changes and aging
● 1024 channels spectrum analysis
●
1E qualifi cation and embedded safety related
software
● Available under 10 CFR 50 App.B, IEC61226 and
ASME NQA-1 programs for safety related application