Summary form only given. Radiation environments characteristic of those encountered during the low-temperature foot pulse and subsequent higher-temperature early-step pulses required for indirect-drive ICF ignition on the National Ignition Facility (NIF) are desired in order to provide a platform to better understand the dynamics of NIF hohlraums and capsules prior to NIF completion. In this paper, we show that an axial hohlraum using the static-wall-hohlraum geometry heated by X-rays from a Z-pinch on the Z generator is capable of providing environments for such pre-NIF studies as well as for diagnostic applications