How to configure beam characteristics such as filtration

Beginner Questions
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1

I’m currently working on generating DRR image from 3D CT volumes.
Is there a way to configure beam characteristics such as filtration ?
That is for an example we use a 120kVp beam, and the filtration is given as 16.25mmAl at 120kVp. Does ITK or RTK versions has two parameters to keep these two values (120 kVp and 16.25mmAl)

2

RTK has its own mailing list. RTK specific questions are best posted there. @simon.rit occasionally answers RTK-related questions on this forum.

3

Thanks for forwarding the question @dzenanz. Question has been answered here in the mean time.