Hi DDSCAT Community,

I have two questions:

1. I'm using the "nSphere" target generation to produce a target without overlapping spheres. I'd like to include nearfield calculations to examine if there's any nearfield interaction between the spheres. For a single sphere, such as the ellipsoid nearfield example, the nearfield calculation extends the computational volume beyond an individual sphere, as specified in the ddscat.par file. However, I'm confused how this works for nSpheres, where dipoles are only placed at sphere locations. Would a nearfield calculation with fractional extensions of 0.5 in all directions expand the computational volume around each sphere or would it somehow expand the computational volume around the entire TUC? Assuming its the former, if I wanted to include sphere-sphere nearfield interactions, should I specify the fractional extension to include nearest neighbor spheres? Or, am I misinterpreting these things?

2. I've been trying to extract the Qrad and Qtorque from calculations. When I include everything (i.e. "DOTORQUE"), the qtable still doesn't include those values. What setting should I double check to make ddscat write the Qrad and Qtorque?

Thank you for the help!

-Matt