2013
DOI: 10.3139/120.110493
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Röntgenrückstreuradiografie – Eindringen statt Durchdringen, aber Bilder mit Schatten

Abstract: KurzfassungDer große praktische Vorteil der Rückstreuradiografie allgemein ist, dass kein Bilddetektor am Objekt auf der der Strahlenquelle gegenüberliegenden Seite aufgestellt werden muss. Dieses ist immer dann gegeben, wenn sich das Untersuchungsobjekt in oder an einer Wand befindet oder es so groß ist, dass eine Durchstrahlung aufgrund der zu durchdringenden Schichtdicken nicht infrage kommt. Von der üblichen Methode, das Objekt mit einem wandernden ausgeblendeten Einzelstrahl („Bleistiftstrahl“) abzutasten… Show more

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“…Processing of the received information plays a very important role; the interpretation of the sensory data is performed with the help of previously acquired knowledge, attitude, and contextual cues. Due to the persistent behavioral effects, it is known ( Wróbel 2013 ; Schuhmacher et al, 2012 ) that neuroplasticity processes occur in human brain tissue during training of attention and oriented visual perception, but the structural systems responsible for specific changes induced by different tasks have not yet been identified. In addition to changes in resting brain activity ( Mikicin et al, 2015 ), attention training results in measurable effects as study participants had shorter reaction times in the visual attention test after completing a series of training sessions than before training.…”
Section: Introductionmentioning
confidence: 99%
“…Processing of the received information plays a very important role; the interpretation of the sensory data is performed with the help of previously acquired knowledge, attitude, and contextual cues. Due to the persistent behavioral effects, it is known ( Wróbel 2013 ; Schuhmacher et al, 2012 ) that neuroplasticity processes occur in human brain tissue during training of attention and oriented visual perception, but the structural systems responsible for specific changes induced by different tasks have not yet been identified. In addition to changes in resting brain activity ( Mikicin et al, 2015 ), attention training results in measurable effects as study participants had shorter reaction times in the visual attention test after completing a series of training sessions than before training.…”
Section: Introductionmentioning
confidence: 99%