X-ray mass attenuation coefficients and imaginary components of the atomic form factor of zinc over the energy range of 7.2-15.2 keV
Nicholas A Rae, Christopher T Chantler, Zwi Barnea, Martin D de Jonge, Chanh Q Tran, James R Hester
PHYSICAL REVIEW A | AMER PHYSICAL SOC | Published : 2010
The x-ray mass attenuation coefficients of zinc are measured in a high-accuracy experiment between 7.2 and 15.2 keV with an absolute accuracy of 0.044% and 0.197%. This is the most accurate determination of any attenuation coefficient on a bending-magnet beamline and reduces the absolute uncertainty by a factor of 3 compared to earlier work by advances in integrated column density determination and the full-foil mapping technique described herein. We define a relative accuracy of 0.006%, which is not the same as either the precision or the absolute accuracy. Relative accuracy is the appropriate parameter for standard implementation of analysis of near-edge spectra. Values of the imaginary co..View full abstract
The authors gratefully acknowledge the support of the ARC and ASRP with grants for this work and the ANBF beamline staff for the experimental beam time.