Meter-scale spark X-ray spectrum statistics

Meter‐scale spark X‐ray spectrum statistics

X-ray emission by sparks implies bremsstrahlung from a population of energetic electrons, but the details of this process remain a mystery. We present detailed statistical analysis of X-ray spectra detected by multiple detectors during sparks produced by 1 MV negative high-voltage pulses with 1 μs risetime. With over 900 shots, we statistically analyze the signals, assuming that the distributio...

SMART-X, “Square Meter, Arcsecond Resolution X-ray Telescope”

SMART-X is a mission concept for a 2.3 m2 e ective area, 0.5 ′′ angular resolution X-ray telescope, with 5 ′ FOV, 1 ′′ pixel size microcalorimeter, 22 ′ FOV imager, and high-throughput gratings.

Statistics of X-Ray Solar Flares

Previous studies of the statistical behavior of solar flare waiting times are based on the assumptions of Gaussian and Poisson statistics, subject to central limit theorem restrictions. In this study, the results of a rescaled range analysis on the waiting times for two hard x-ray solar flare data sets are presented. The Hurst scaling parameter, H, for both data sets is well above 0.5, clearly ...

Unfolding X-ray spectrum in the diagnostic range using the Monte Carlo Code MCNP5

Introduction: Unfolding X-ray spectrum is a powerful tool for quality control of X-ray tubes. Generally, the acquisition of the X-ray spectrum in diagnostic radiology departments is complicated and difficult due to high photon flux. Measurement of x ray spectra using radiation detectors could not be performed accurately, because of the pulse pile up. Therefore, indirect methods...

Chemical Effects on K-x-ray Spectrum