  Mergers of galaxy clusters are the most energetic events in the universe,
driving shock and cold fronts, generating turbulence, and accelerating
particles that create radio halos and relics. The galaxy cluster CL 0217+70 is
a remarkable late stage merger, with a double peripheral radio relic and a
giant radio halo. A Chandra study detects surface brightness edges that
correspond to radio features within the halo. In this work, we present a study
of this cluster with NuSTAR and Chandra data using spectro-imaging methods. The
global temperature is found to be kT = 9.1 keV. We set an upper limit for the
IC flux of ~2.7x10^(-12) erg s^(-1) cm^(-2), and a lower limit to the magnetic
field of 0.08 microG. Our local IC search revealed a possibility that IC
emission may have a significant contribution at the outskirts of a radio halo
emission and on/near shock regions within ~0.6 r500 of clusters. We detected a
"hot spot" feature in our temperature map coincident a surface brightness edge,
but our investigation on its origin is inconclusive. If the "hot spot" is the
downstream of a shock, we set a lower limit of kT > 21 keV to the plasma, that
corresponds to M~2. We found three shock fronts within 0.5 r500. Multiple weak
shocks within the cluster center hint at an ongoing merger activity and
continued feeding of the giant radio halo. CL 0217+70 is the only example
hosting these secondary shocks in multiple form.

High Energy Astrophysical Phenomena;Astrophysics of Galaxies