Characterization and calibration of a multilayer coated Wolter optic for an imager on the Z-machine at Sandia National Laboratories.

The need for a time-resolved monochromatic x-ray imaging diagnostic at photon energies >15 keV has motivated the development of a Wolter optic to study x-ray sources on the Z-machine at Sandia National Laboratories. The work is performed in both the LLNL's x-ray calibration facility and SNL's micro-focus x-ray lab. Characterizations and calibrations include alignment, measurement of throughput within the field of view (FOV), the point-spread function within the FOV both in and out of focus, and bandpass in the FOV. These results are compared with ray tracing models, showing reasonable agreement.

[1]  Shunsaku Okada,et al.  Characterization of a Hard X-ray Telescope at Synchrotron Facility SPring-8 , 2008 .

[2]  L. Pickworth,et al.  An x-ray optic calibration facility for high energy density diagnostics. , 2018, The Review of scientific instruments.

[3]  H. Wolter Spiegelsysteme streifenden Einfalls als abbildende Optiken für Röntgenstrahlen , 1952 .

[4]  Finn Erland Christensen,et al.  Growth, structure, and performance of depth-graded W/Si multilayers for hard x-ray optics , 2000 .

[5]  L. Pickworth,et al.  A Wolter imager on the Z machine to diagnose warm x-ray sources. , 2018, The Review of scientific instruments.

[6]  B. Remington,et al.  High precision Wölter optic calibration facility , 1995 .

[7]  M J Boyle,et al.  Imaging characteristics of an axisymmetric, grazing incidence x-ray microscope designed for laser fusion research. , 1978, The Review of scientific instruments.

[8]  Regina Soufli,et al.  Physics of reflective optics for the soft gamma-ray photon energy range. , 2013, Physical review letters.

[9]  David L Windt Laboratory-based X-ray reflectometer for multilayer characterization in the 15-150 keV energy band. , 2015, The Review of scientific instruments.

[10]  Christopher J. Burrows,et al.  Optimal grazing incidence optics and its application to wide-field X-ray imaging , 1992 .

[11]  L. Pickworth,et al.  Design and raytrace simulations of a multilayer-coated Wolter x-ray optic for the Z machine at Sandia National Laboratories. , 2018, The Review of scientific instruments.

[12]  Shinji Ohsuka,et al.  Laboratory-size three-dimensional x-ray microscope with Wolter type I mirror optics and an electron-impact water window x-ray source. , 2014, The Review of scientific instruments.

[13]  Tobias Funk,et al.  Small-animal radionuclide imaging with focusing gamma-ray optics , 2003, SPIE Optics + Photonics.