FLIR Detection
3. Field Operating Guide
3.4
Identifying a Radiation Source
After you have detected a radiation source by surveying the ambient dose rate (
3.2
, p.
70
) or by
locating its position (
3.3
, p.
73
), you can use the FLIR identiFINDER R300’s Identi ication Mode (
4.3
,
p.
90
) to ind out the nuclide the radiation is originating from.
The FLIR identiFINDER R300 can identify and report a number of nuclides by analyzing the radia-
tion spectrum they emit. You can inspect the library of these nuclides in appendix
C
, p.
259
or, with
less detail, in the instrument itself by checking the nuclide visibility under
Options Menu (p.
ä
More Options (p.
)
ä
Identi cation Options (p.
)
ä
Nuclide Visibility (p.
Depending on your instrument’s settings, you might have to enter a password to access the
list (
2.2.7
, p.
46
).
Ô
To identify radionuclides
…
1. If the FLIR identiFINDER R300 runs in Dose Rate Mode (Figure
64
, p.
71
) and Finder Mode
is enabled, then press
Finder
. If Finder mode is disabled, then
Identify
will be present so
proceed to the next step.
2. Press
Identify
to switch to Identi ication Mode (Figure
70
, p.
75
).
Best Range
Schematic Count Rate
Indicator
Current Count Rate
ent Count Rate
ent Count Rate
Current Dose Rate
ent Dose Rate
ent Dose Rate
Duration
uration
uration
Dead Time Relative to
Passed Duration
Advice
Figure 70.
Spectrum acquisition in Identi ication Mode
The FLIR identiFINDER R300 begins to acquire a spectrum of the radiation. Normally, there
is a preset acquisition duration, but you can change that to a minimum number of counts set
at the factory (
6.4
, p.
116
).
3. Move the instrument into a good position for optimal data acquisition.
Try to get the current count rate marker into the center of the schematic indicator (Figure
70
,
p.
75
) by getting closer to or away from the source.
identiFINDER
®
R300/en/2014.4(13623)/Feb2015
75
