[Castor-users] [Castor-devel] Fwd: Re: TR: SPECT reading Interfile

[Michael Ljungberg]

Hi all

Look like my conversion program works now. I also got the attenuation correction to work. Simind and Castor has a different orientations so I solved this by starting at 180 degrees instead of flipping the end result. This also aligned to the orientation of the attenuation map.

I have a question concerning the scatter. The value I add to the *.cdf file – is it added in the forward projector or is it subtracted in some way?  I assume the scatter value should be normalised to the total value I also add.

Second question – what does the “ Normalization factor of the corresponding sinogram bin“ value actually do in SPECT histograms?

Best regards

Michael
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