Introduction - Mirion Technologies GEM-5 User Manual

1. Introduction

Thank you for ordering the Mirion Technologies (Canberra CA) Ltd. GEM™-5
Gamma Exit Monitor. The GEM-5 gamma exit monitor provides power plants and
nuclear facilities the very latest gamma detection capability to monitor pedestrians
leaving areas of potential radioactive contamination. Operation of the monitor is
straightforward and reliability is assured with both audible and visual aids to support
monitoring activities. The easy to see color LCD screen provides visual cues and
readily displays contaminated areas. Additionally, users are guided through the
monitor with a voice annunciator, which provides clear voice prompts necessary for
dependable unassisted operation during normal conditions.
Access to the installed computer is through a single convenient panel on the front of
the monitor. Computer connections inside this access door also include an on/off
switch, VGA port, serial port, Ethernet port and USB ports. This door is lockable to
limit access to these connections.
All Mirion Technologies (Canberra CA) Ltd. Contamination Monitors provide fast
sensitive monitoring. Due to modularity of components and extensive diagnostics,
direct reductions in consumable and workforce maintenance costs can be realized.
Modern appearance and reliable industrial embedded PC-based operation with better
tracking of contamination and faster, more thorough item throughput at boundary
points can further enhance a facility's contamination control program.
In addition, these monitors use the same "fast following" background trending and
release-limit algorithms consistent with the Mirion Technologies (Canberra CA)
Ltd. Argos, Sirius and Cronos families providing the best possible performance in
stable or varying radiation fields.
Gem-5 User's Manual
Figure 1 GEM-5 Gamma Exit Monitor
Features
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