ECOTEST VIRTUOSO RKG-14 Operating Manual page 8

Multipurpose environment activity radiometer
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from a point not typical of the environment or from a material too clean or too
contaminated).
Moreover, carrying out an examination by sampling practices appear to be
quite a time-consuming, inconvenient and sometimes even unacceptable procedure
as the sample collection might cause damage to the integrity of a product (or
packaging). In this way, traditional laboratory surveys play a major role in ensuring
accurate official analysis (especially in situations of complex analysis of heavy
contamination), but traditional methodology for investigating samples is
inconvenient for practical applications on a large scale, and for this reason it is
unable to address the issue of efficient, massive monitoring that could be a reliable
"filter" on the way of radioactive migration.
With a need for a large-scale practical use, we have created another concept
of monitoring radiocesium content in food products. We have also developed the
method used to measure radiocesium contained in the food (not only in products
but also in any other packages) by the way of placing the detector close to an object
under testing. This approach does not always yield such a profound analysis as
laboratory studies do, but it is convenient and practical.
Due to a simple measurement procedure, "VIRTUOSO" monitors
radiocesium content under almost any conditions and causes no damage to a food
package. Apart from this, with no need for a sample collection the device allows
you to test for cesium not only food products but also soils under cultivation, as
well as any other objects or substances that may contain or transmit cesium
themselves. In general, the possibility to place the detector close to different points
of the tested objects provides more current information, and this feature makes the
concept of "VIRTUOSO" device completely different from the laboratory studies
participating in a limited sample testing.
Why testing food products using "VIRTUOSO" is so convenient?
At first you can simply and quickly assess the potential contamination of the
area or premises where we are, or some large volumes of materials (e.g. wood
piles, containers with food, etc.). No samples, not laboratories. Holding the device
in your hands just turn on "Cesium DER" mode and see if characteristic radiation
of radiocesium is present in this place along with background radiation. If the
detector notices radiocesium, then any objects (materials, products, etc.) in this
place or in this room may also contain contamination. Then you should switch to a
specific testing of materials and products of interest. This examination using
"VIRTUOSO" is very simple.
While testing large food volumes instead of taking samples, one places the
detector close to the food. At this point, the detector is exposed to radiation coming
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