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Whitepaper "Rod source / point detector arrangement"

Whitepaper "Rod source / point detector arrangement"
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Whitepaper "Rod source / point detector arrangement" - 1

Long-lasting process quality due to advantageous measuring arrangement ROD SOURCE / POINT DETECTOR ARRANGEMENT

Whitepaper "Rod source / point detector arrangement" - 2

When planning a radiometric measurement, the technical design is fundamental. It is created and developed based on process conditions, process geometry, customer input as well as local background radiation, site conditions, and mounting space limitations. For the design of radiometric level or bulk flow measurements, a choice must be made between two arrangements: a point source with a rod detector (Fig. 1 top), or a rod source and a point detector (Fig. 1 bottom). Due to the slightly lower purchase price, the arrangement with a point source and rod detector is frequently selected. However,...

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Whitepaper "Rod source / point detector arrangement" - 3

Suppression of process influences In the operating process, there are often influences that can contribute to a falsification of the measured value, e.g., product build-ups and gas pressure fluctuations in level measurements and process deposits in bulk flow measurements. These variables influence the absorption of the gamma radiation emitted by the source. Especially Fig. 5 ogging (left) and yellowing (middle) of polymer scintillators compared to an unaltered polymer scintillator (right) F in the case of gamma radiation from cesium-137 (Cs-137), which has half the energy of gamma radiation...

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Whitepaper "Rod source / point detector arrangement" - 4

of these radioisotopes is radon-222, with a half-life of 3.82 days, which occurs as a daughter nuclide and as the only gaseous element in the uranium decay series. Radon is a very mobile gas that can diffuse freely through soils and is thus released into the atmosphere. Moreover, radon is additionally washed out of the atmosphere by precipitation, causing it to accumulate near the ground. Rn-222 is a pure alpha emitter. The daughter and grandchild nuclides of Rn-222 decay further by emitting gamma radiation. Consequently, during rainfall, the background radiation can almost double for a...

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Whitepaper "Rod source / point detector arrangement" - 5

Berthold Technologies stands for excellent know-how, high quality and superior reliability. The customer is always the focus of our solution. We know our business! Using our varied product portfolio, our enormous specialized knowledge and extensive experience, we develop suitable solutions together with our customers for new, individual measurement tasks in a wide variety of industries and applications. Berthold Technologies is specialized in radiometric process measurements for over 70 years. This is our core competence with state-of-the-art and innovative products and solutions covering a...

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