The high-resolution von Hamos Bragg crystal spectrometer was constructed for the study of K X-ray emission from low-Z elements and L and M X-ray spectra of medium to high Z elements.
In contrast, as the concentration was increased above 0.01 M, X-ray attenuation by Au DENPs became progressively greater than that of the corresponding iohexol solution.
All radiographs of the hand were acquired by a Siemens Multix Polymat equipment (Siemens AG, Erlangen, Germany) (AGFA Curix film; film focus distance, 1 m; X-ray tube voltage, 55 kV; exposure dose, 6 mAs).
16 h later, cells were starved in serum-free media for 4 h, then stimulated for 3 h, and irradiated using the Faxitron at a distance of 0.33 m x-ray source for 1.1, 2.2, or 3.3 min (for 2, 4, 6 Gy, respectively).
The CT acquisition consisted of 120 projections acquired with exposure time of 200 ms, X-ray voltage of 80 kVp and anode current of 500 μA for 220° rotation.
CT acquisition consisted of 270 projections acquired with exposure time of 400 ms, x-ray voltage of 80 kVp, and anode current of 400 μA for a full 360° rotation.
Zoghbi, A., Fabian, A. C., Reynolds, C. S. & Cackett, E. M. Relativistic iron K X-ray reverberation in NGC 4151.
Bohon J, D'Mello R, Ralston C, Guptac S, Chance M, "Synchrotron X-ray footprinting on tour," J. Synchrotron Rad.
Bohon J, D'Mello R, Ralston C,Guptac S, Chance M, "Synchrotron X-ray footprinting on tour," J. Synchrotron Rad 21(1), 24-31 (2014).
Sharp peaks in n below 0.15 µ m are X-ray absorption peaks (panel a inset).
The sum image for Au + Hg M line X-rays is therefore a compositional image that mimics daguerreotype photograph contrast.
