Prospects for differentiating extended coronal geometries in AGNs with the <i>IXPE</i> mission

X-ray polarimetry can potentially constrain the unknown geometrical shape of AGN coronae. We present simulations polarization signal expected from coronae, assuming three different geometries, namely slab, spherical and conical. use fully relativistic Monte-Carlo Comptonization code monk to compute degree angle. explore coronal parameters such as shape, size, location optical depth. Different geometries give a significantly signal. A slab corona yields high degree, up 14% depending on viewing inclination; low values, about 1-3%, while conical intermediate values. also find difference 90 degrees in angle between or Upcoming missions like IXPE will allow us observationally distinguish among AGNs for first time.