Die Erzeugung und die genaue Messung der zugeführten Aktivität war eine messtechnische Herausforderung.
Sie gelang über einen neuartigen Messaufbau, genannt Thoron-Emanations-Messplatz ( TEM ).
Die Aktivität stammt hierbei aus einem Thorium ( Th-228 ) -Präparat, das kontinuierlich Thoron produziert.
www.ptb.deThe production and the accurate measurement of the activity which was fed in, was a metrological challenge.
It was possible through a novel measuring arrangement called the thoron emanation measuring facility ( TEM ).
The activity thereby comes from a thorium ( Th-228 ) preparation which continually produces thoron.
www.ptb.deDie Erzeugung und die genaue Messung der zugeführten Aktivität waren technische Herausforderungen.
Bei dem neuartigen Messaufbau, Thoron-Emanations-Messplatz ( TEM ) genannt stammt die Aktivität aus einem Thorium- ( Th-228 ) Präparat, das kontinuierlich Thoron produziert.
Ein beständiger starker Luftstrom transportiert das Thoron in den Prüfbehälter.
www.ptb.deThe production and the accurate measurement of the activity which was fed in, was a technical challenge.
In the case of the novel measurement set-up – the thoron emanation measuring arrangement ( TEM ) – the activity comes from a thorium ( Th-228 ) source which produces thoron continually.
A constant, strong air stream transports the thoron into the test container.
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