Caravan-Submm, Black Hole Imager in the Andes

<div>Surface accuracy about 15 <i>μ</i>m r.m.s. was achieved using a new 30 cm mold (surface accuracy: 4 <i>μ</i>m r.m.s.) by metal spinning method with adding an annealing process.</div>

Advances in Astronomy

fig7

Figure 7

Figure 7: Caravan-Submm, Black Hole Imager in the Andes 