  Cosmic Ray Ensembles (CRE) are yet not observed groups of cosmic rays with a
common primary interaction vertex or the same parent particle. One of the
processes capable of initiating identifiable CRE is an interaction of an
ultra-high energy (UHE) photon with the solar magnetic field which results in
an electron pair production and the subsequent synchrotron radiation. The
resultant electromagnetic cascade forms a very characteristic line-like front
of a very small width ($\sim$ meters), stretching from tens of thousands to
even many millions of kilometers. In this contribution we present the results
of applying a toy model to simulate detections of such CRE at the ground level
with an array of ideal detectors of different dimensions. The adopted approach
allows us to assess the CRE detection feasibility for a specific configuration
of a detector array. The process of initiation and propagation of an
electromagnetic cascade originated from an UHE photon passing near the Sun, as
well as the resultant particle distribution on ground, were simulated using the
CORSIKA program with the PRESHOWER option, both modified accordingly. The
studied scenario results in photons forming a cascade that extends even over
tens of millions of kilometers when it arrives at the top of the Earth's
atmosphere, and the photon energies span practically the whole cosmic ray
energy spectrum. The topology of the signal consists of very extended CRE
shapes, and the characteristic, very much elongated disk-shape of the particle
distribution on ground illustrates the potential for identification of CRE of
this type.
