How Filamentary Fields Surrounding Implosions Affect Charged Particle Diagnostics

The spectrum and spatial distribution of energetic charged particles generated by inertial confinement fusion (ICF) implosions encodes information about the hotspot and dense fuel during the time of peak fusion reactions. However, filamentary electric and magnetic fields known to develop in laser ablation plasmas can interfere with charged particle measurements by scattering particles as they pass through the corona of the implosion. In this talk we will present knock-on deuteron images from OMEGA cryogenic implosions with significant distortions and show how these distortions can be explained by particle scattering off of electric and/or magnetic filamentary fields around the target. We will also present efforts to characterize these filamentary fields and discuss their potential impact on other charged particle diagnostics.