[en] The Z Facility at Sandia National Laboratories utilizes z-pinch implosions to produce up to 2 MJ of X-rays. On Z, bremsstrahlung radiation is produced as a product of both power flow electrons and those accelerated in the pinch region. An understanding of the energy spectra and intensity of this radiation is important to both the explanation of the z-pinch physics and the design of new diagnostics. This paper describes the techniques and results used to date for mapping the bremsstrahlung radiation in the vacuum section of the Z Accelerator