4.3. Identi cation Mode
FLIR Detection
Identify
Switch to Identi ication mode (see
4.3
, p.
90
).
Options
Inspect and change options (see
, p.
4.3
Identi cation Mode
You can switch the FLIR identiFINDER R300 to Identi ication Mode to perform the actions neces-
sary to identify the nuclides gamma radiation is originating from.
The instrument acquires a gamma spectrum for a duration you can specify (
6.4
, p.
116
) and shows
the progress and some parameters of the measurement (Figure
91
, p.
90
).
The spectrum acquired here overwrites the current contents of the spectrum viewer (
6.2
,
p.
106
). Data acquisition in the spectrum viewer, if any, is stopped.
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 91.
Identi ication Mode: Progress display during time limited data acquisition
The FLIR identiFINDER R300 achieves better identi ication results if the count rate is within a cer-
tain range shown in the center of in the indicator. While the current count rate is outside the desired
range, advices are shown so you can shorten (Figure
92
, p.
91
) or lengthen (Figure
93
, p.
91
) the
distance between the instrument and the radiation source.
If the acquisition is limited not by the time, but the number of counts (
6.4
, p.
116
), the display looks
slightly different (Figure
94
, p.
92
).
You should try to move the instrument into a good position although the advice on moving
the instrument in a position for best identi ication is not shown in this mode to make room
for the number of counts relative to the required minimum.
90
identiFINDER
®
R300/en/2014.4(13623)/Feb2015