Mirion Technologies NGM 209M - Manual

Featuring:
radiation monitoring
systems
A Mirion Technologies Division
NGM 209M
Particulate, Gas & Iodine Monitors
NGM 209M
Mobile Low Range Noble Gas Monitor
The NGM 209M monitor from the RAMSYS product
line has been developed to sample air in discharge
stacks or ventilation ducts. The dual silicon diode
detector integrated in a 4 π/3 cm (4 π/1.18 in) lead
shielded sample volume guarantees high reliability of
the measurements.
The fi rst silicon diode detects the beta/gamma ra-
diation from sample volume and the gamma ambient
radiation (background). The second one detects
gamma radiation from the sample volume and the
gamma ambient radiation. This allows noble gas beta
measurement with dynamic gamma compensation by
the processing algorithms.
APPLICATIONS
• Radioprotection of workers
○ Containment atmosphere
○ Control room air, etc.
RELATED MONITORS
• NGM 202L: noble gas monitor
• NGM 203S: accident range noble gas monitor
• NGM 204L: low range noble gas monitor
• NGM 204S: low range noble gas monitor
FEATURES
● Dynamic gamma radiation compensation with shielded
gas detection sensor
● Absorbed gamma dose rate indication
● Operate as a stand-alone monitor and/or can be
integrated in a RAMSYS network using a wireless
network (radiomodem) or a RS485 serial link