Inverse Fourier Transform

I am performing fft on my AT-TPC data. I have done the inverse fourier transform but the problem is that the orignal and the fft transform fits perfectly well in the middle but not on the boundaries. Anyone has an idea what to do about that?

Welcome to the ROOT forum.

Maybe a script reproducing the issue might help.
@moneta will know how to help you.

Thank you very much for your response but how do I contact @moneta?

He will contact you by the forum.