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Select "Cs" tab, and then "Surface activity" icon. Before starting soil
testing, please read carefully the guidelines on carrying out measurements
described in Section 2.6.2 "Important recommendations for soil testing". Pay
attention to the way of selecting the type of measurement, as well as positioning the
detector above the soil surface, etc. Guidelines are also available in the help
window of the application, which appears when you tap the "Help" button. (see
Fig. 2.34).
Attention: Disregarding the guidelines on carrying out measurements described
in Section 2.6.2 "Important recommendations for soil testing" may lead to
incorrect measurement results.
There are five steps to determine specific activity of radiocesium
(subsections 2.6.1.1 – 2.6.1.5). The first steps specify the parameters of
measurement, and a test for the presence of cesium isotopes is conducted, while the
last step evaluates their specific activity.
The device features two options for presenting test results: a basic mode and
an expert mode.
The basic mode displays the process of measurement and the results in a
simplified form, while the expert mode allows observing the process of
measurement in more details and receiving the information about the presence of
cesium and its activity much earlier.
The expert mode provides much more information, however requires some
skills in radiation measurements, especially understanding of the nature of
statistical trends typical of radiation measurements.
The expert mode ensures display of activity from the very beginning, which
becomes more accurate in the process of measurement. However, a reliable result
will become available only after a certain period of time, when the shape and the
width of the trend assume their typical view. It will serve an indication that
sufficient data has been collected.
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