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2.3.3.7 The mode of photon-ionizing radiation DER measurement
The mode of photon-ionizing radiation DER measurement is entered
automatically after the dosimeter is switched on. With a short press on the
MODE button you can proceed to this mode from any other operating mode.
To measure photon-ionizing radiation DER, direct the dosimeter with
its metrological mark "+" (5) (Figure 2) towards an examined object. The
filter cover (4) should cover the window with the detector located behind it
(hereinafter called the window of the detector).
In this mode the dosimeter's LCD displays the following information
(Figure 3):
-
statistical error (1) of the measurement result (8);
-
"γ" symbol (2) – an indication of the measured radiation type;
-
instantaneous value indicator of radiation intensity (3);
-
sound symbol (4) (if audio signaling of registered gamma quanta is
switched on);
-
alarm clock symbol (5) (if the alarm clock is on);
-
alarm type symbol (6);
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