How to combine 2 CustomVoxelPhantom?

[shenzhouxiaohao-cpu]

I can generate a rectangular phantom using the code below, but this rectangle has only a single T1 value. I want to create another rectangle with a different T1 value at a different location—how should I proceed?

phantom = mr0.CustomVoxelPhantom(
    pos=[[-0.0,0.0,0]],
    PD = [1.0],
    T1=[0.1],
    T2=[0.01],
    T2dash=[2e-3],
    D = [3],
    B0=0,
    voxel_size=0.2,voxel_shape='box'
)

Additionally, what are the units for D and B0?

[shenzhouxiaohao-cpu]

I tried to set the T1 matrix of the phantom by following the example, but the obtained T1 matrix size is 1.

[schuenke]

hey again @shenzhouxiaohao-cpu

This question is specifically about the mr0.CustomVoxelPhantom class, which is part of the MRzero Core package, not PyPulseq. This is the wrong repository for your query.

We also need to clarify that GitHub Issues are primarily for reporting bugs or discussing planned features. We expect users to research and attempt to resolve their implementation questions or problems independently before creating a new issue. Please ensure you have thoroughly investigated your solution before posting here or in the MRzero repository going forward.

[shenzhouxiaohao-cpu]

I'm sorry I filled it in the wrong place. I've been learning about related libraries recently and got a bit confused. I've now submitted this issue to MR0.
MRsources/MRzero-Core#138