Moggi-Cecchi et al. (2002) suggested that long counting times and special operating conditions are required to obtain X-ray distribution maps for trace elements below 1000 ppm.
(a) Electrophorectically deposited multiple X-ray source chip and the corresponding (b) scanning electron micrograph of deposited CNTs, and (c) he resulting electronically reconfigurable X-ray distribution.
The effects that the change in x-ray distributions may have on performance between the two subpopulations was modelled using hierarchical logistic regression.
The x-ray distributions for each of the normal and abnormal populations are shown in figures 2 and 3. On inspection, the distributions are broadly similar for the high- and low-prevalence populations in each case, with only chest x-rays being an outlier in figure 3.
Quantum optics plays a major role in describing X-ray photon distribution and selection of this distribution for specific clinical protocols.
Moreover, the choice of spectral model (i.e., free vs. fixed photon index) has a pronounced effect on the derived JVH distribution and, to a lesser extent, the X-ray luminosity distribution.
The resulting X-ray luminosity distribution function can be well described by a log-normal distribution; the largest and smallest X-ray luminosities from our sample stars differ by almost four orders of magnitude.
The new modality may be useful for a number of applications, such as providing the location of a fiducial, or monitoring x-ray dose distribution during radiation therapy.
The nanostructural evolution of metakaolin-based geopolymer binders is investigated using in situ X-ray pair distribution function analysis.
While the X-ray orientation distribution functions (ODF) provided an overall picture of the textural changes, orientation imaging microscopy (OIM) results narrowed these to the respective changes in deformed and recrystallized regions.
Neat 1-octyl-3-methylimidazolium bis trifluoromethylsulfonyl)imide confined in CDCs was studied using an integrated experimental and modeling approach, consisting of quasielastic neutron scattering, small-angle neutron scattering, X-ray pair distribution function analysis, and electrochemical measurements, which were combined with molecular dynamics simulations.
