Uniform large-area x-ray imaging at 9 keV using a backlit pinhole.
The development and application of point backlighting at high x-ray energies is an essential step in diagnosing radiation-driven experiments. The point-backlighting technique provides uniform backlighter irradiance over a large field of view. This technique circumvents the large laser energy required for area backlighters at energies of 9 keV and above. We present the results of a Zn 9 keV point-backlighter source using the technique of pinhole aperturing to define the source size and hence the resolution. Details of the design and application of this technique to an undriven gold-walled hohlraum are described.
Workman
Jonathan
J
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. workman@lanl.gov
Fincke
James R
JR
Kyrala
George A
GA
Pierce
Tim
T