  The Atacama Large Millimeter/submillimeter Array offers an unprecedented view
of our Sun at sub-/millimeter wavelengths. The high spatial, temporal, and
spectral resolution facilitates the measurement of gas temperatures and
magnetic fields in the solar chromosphere with high precision. The anticipated
results will revolutionize our understanding of the solar atmosphere and may in
particular result in major steps towards solving the coronal heating problem.
Based on state-of-the-art 3D radiation magnetohydrodynamic simulations, we
calculate the emergent continuum intensity (and thus brightness temperature
maps) in the wavelength range accessed by ALMA and simulate instrumental
effects for different array configurations. First results show that the local
gas temperature can be closely mapped with ALMA and that much of the complex
small-scale chromospheric pattern can be resolved.
