FEATURE REQUEST: Composite materials based off of previously defined materials

[troth5]

Is there a way to define a composite material based off of previously defined materials in the geometry file? If not, this could be very useful for complex materials.

[zoglauer]

Not at the moment. I have put it on my to-do list.

[Yugadeep]

@zoglauer I have a similar question. Can we define materials like water based on hydrogen and oxygen? For example, in the geometry file, I would have something like:

Material aqua // name for water
aqua.Density 1 // g per cc

aqua.ComponentByMass H 0.11 // 11% by mass of water is Hydrogen
aqua.ComponentByMass O 0.89 // The other mass if from Oxygen

Would this 'aqua' material be representative of water? Meaning, are the gamma ray interactions in Cosima with 'aqua' comparable to gamma ray interactions with water in real life?

Thank you!