Time-resolved hard x-ray spectrometer

Kenneth Moy; Michael Cuneo; Ian McKenna; Thomas Keenan; Thomas Sanford; Ray Mock

doi:10.1117/12.681954

11 September 2006 Time-resolved hard x-ray spectrometer

Kenneth Moy, Michael Cuneo, Ian McKenna, Thomas Keenan, Thomas Sanford, Ray Mock

Proceedings Volume 6319, Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII; 63190I (2006) https://doi.org/10.1117/12.681954
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Wired array studies are being conducted at the SNL Z accelerator to maximize the x-ray generation for inertial confinement fusion targets and high energy density physics experiments. An integral component of these studies is the characterization of the time-resolved spectral content of the x-rays. Due to potential spatial anisotropy in the emitted radiation, it is also critical to diagnose the time-evolved spectral content in a space-resolved manner. To accomplish these two measurement goals, we developed an x-ray spectrometer using a set of high-speed detectors (silicon PIN diodes) with a collimated field-of-view that converged on a 1-cm-diameter spot at the pinch axis. Spectral discrimination is achieved by placing high Z absorbers in front of these detectors. We built two spectrometers to permit simultaneous different angular views of the emitted radiation. Spectral data have been acquired from recent Z shots for the radial and axial (polar) views. UNSPEC1 has been adapted to analyze and unfold the measured data to reconstruct the x-ray spectrum. The unfold operator code, UFO², is being adapted for a more comprehensive spectral unfolding treatment.

Citation Download Citation

Kenneth Moy, Michael Cuneo, Ian McKenna, Thomas Keenan, Thomas Sanford, and Ray Mock "Time-resolved hard x-ray spectrometer", Proc. SPIE 6319, Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII, 63190I (11 September 2006); https://doi.org/10.1117/12.681954

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