19 October 2012 Calibrating of x-ray detectors in the 8 to 111 keV energy range and their application to diagnostics on the National Ignition Facility
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Abstract
The calibration of X-ray diagnostics is of paramount importance to the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL). National Security Technologies LLC (NSTec) fills this need by providing a wide variety of calibration and diagnostic development services in support of the ongoing research efforts at NIF. The Xray source in the High Energy X-ray lab utilizes induced fluorescence in a variety of metal foils to produce a beam of characteristic X-rays ranging from 8 to 111 keV. Presented are the methods used for calibrating a High Purity Germanium detector, using NIST traceable radioactive sources, and compared against a silicon photodiode calibrated at Physikalisch Technische Bundesanstalt (PTB). A limited presentation of results from the recent calibration of the upgraded Filter Fluorescer X-ray Spectrometer is included.
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Joshua J. Lee, Joshua J. Lee, Michael J. Haugh, Michael J. Haugh, Greg LaCaille, Greg LaCaille, Peter Torres, Peter Torres, } "Calibrating of x-ray detectors in the 8 to 111 keV energy range and their application to diagnostics on the National Ignition Facility", Proc. SPIE 8505, Target Diagnostics Physics and Engineering for Inertial Confinement Fusion, 850508 (19 October 2012); doi: 10.1117/12.930162; https://doi.org/10.1117/12.930162
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