Apollo 16 Geochemical X-ray Fluorescence Experiment: Preliminary Report.

2015 Canmars Msr Analog Mission: in Situ Geochemical Insights from X-ray Fluorescence Spectrometry

Determination of hemolysis, osmotic fragility and fluorescence anisotropy on irradiated red blood cells as a function of kV of medical diagnostic X-rays

Background: People occasionally undergo medical diagnostic X-ray examinations and expose their red blood cells to radiation. Radiation that is generated from medical diagnostic X-ray machines is widely used in medical diagnoses. One of the important parameters is kilo-voltage (kV) that is applied across the X-ray tube in medical diagnostic X-ray machines. Kilo-voltage influences the radiation d...

Soft X-Ray EPMA Analyses of Extremely Reduced Phases from Apollo 16 Regolith: Problems and Solutions for Sub-Micron Analysis

Interpretation of heterogeneity effects in synchrotron X-ray fluorescence microprobe data

Heterogeneity effects often limit the accuracy of synchrotron X-ray fluorescence microprobe elemental analysis data to ¡30%. The difference in matrix mass absorption at Ka and Kb fluorescence energies of a particular element can be exploited to yield information on the average depth-position of the element or account for heterogeneity effects. Using this technique, the heterogeneous distributio...

Field Portable X-Ray Fluorescence Geochemical Analysis – Its Contribution to Onsite Real-time Project Evaluation

The field portable x-ray fluorescence spectrometer (FPXRF) has evolved to become a unique highly productive geochemical tool over the past 30 years. As with most highly sophisticated technological tools, it is deceptively simple to use, can easily be carried and operated using only one hand and can provide an onsite, nondestructive chemical analysis of about 30 elements ranging in concentration...