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Fig. 3 | EPJ Techniques and Instrumentation

Fig. 3

From: Evaluation of CCD cameras for beam profile monitoring with high intensity particle beams traversing gases

Fig. 3

The light intensity recorded by the camera (Signal) is shown versus the distance of the aperture (X, in Fig. 1) to the tungsten-strip. The concept of the measurement is described in the text. The constant intensity value for distances shorter than 143mm corresponds to a solid angle of 3.84·10−3 sr. In red the \(I(x)=I_{0} \cdot x_{0}^{2}/x^{2} + U\) fit function is plotted. The blue line is the constant level of intensity before the point of reduction. The smaller plot inside the main plot shows a wider distance and signal range in the way it is expected to evolve

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