Mirion Technologies IM 201L - Manual

Featuring:
radiation monitoring
systems
A Mirion Technologies Division
IM 201L
Particulate, Gas & Iodine Monitors
I M 201L
Iodine Monitor
The IM 201L 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 241 Am radioactive source built
into the NaI christal allows compensation of tempera-
ture and aging related drifts. The spectrometry
capability, based on a 1024 channel spectrum
analysis, allows radio iodine isotope localization.
APPLICATIONS
• Effl uent release monitoring
○ Stacks, etc.
• Radioprotection of workers
○ Containment atmosphere
○ Control room air, etc.
RELATED MONITORS
• IM 201M: mobile version
• IM 201S: seismically qualifi ed 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
●
Effl uent trapping of both molecular and organic forms
of iodine