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so I have the spatial distributions of detected hits in figure 1. When plotting fig 1 as a regular scatter plot I thought I could discern some sort of pattern. So I got the idea of taking its fourier transform and to see the result of the analysis. I am not very well acquainted with the program I am using (yet), so I am not completely confident in that I've done everything correctly, but bare with me.

Questions:

- How can the regular pattern in figure 5 be interpreted? The striations in the pattern resemble what I could see in the scatter plot. What about the zigzag pattern?

- In figures 3 and 4, are the red areas equal to places in the spatial distribution where the gradient is the highest?

- When trying to determine detector effects from data, where position and momentum of the particles are available, what could be worth investigating?

Below are 6 figures in total. Every other figure matches. It's from the first and last detector in a series of 4.

2 first figures:spatial distribution of hits

2 middle figures:magnitude of the fourier transform (I called it spatial frequency, not too sure there).

2 last figures:phase of fourier transform

Figure 1. First detector. Beam is rather collimated.

Figure 2. Last detector. More divergence, naturally.

Figure 3. First detector. Magnitude of fourier transform.

Figure 4. Last detector. Magnitude of fourier transfom.

Figure 5. First detector. Phase of fourier transform.

Figure 6. Last detector. Phase of fourier transform.

Cheers,

rjseen

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# Help interpreting processed data (and their transforms)

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