A focused beam total X-ray fluorescence technique was developed based on doubly curved crystal optics. This technique provides good detection sensitivity and spatial resolution for localized detection of surface deposits. Compact low power X-ray sources were used to demonstrate the benefit of the X-ray optics for focusing Cr Ka, Cu Ka and Mo Ka radiation. The detection capability of the focused...

Copper(II) salts have long been used to kill algae in water systems, but they can precipitate as insoluble salts and form deposits on equipment surface. It is important to remove toxic metal from industrial waste because of contamination and toxicity issues. This paper discusses the testing and effects of various phosphonates to control copper-based fouling in the industrial water systems. It h...

Abstract Ore formation in porphyry Cu-Au-(Mo) systems involves the exsolution of metal-bearing fluids from magmas and transport metals magmatic-hydrothermal plumes that are subject to pressure fluctuations. Deposition ore minerals occurs as a result cooling decompression hydrothermal partly overlapping shells. In this study, we address role vapor-like through numerical simulations metal using G...

Synchrotron X-ray lithographic molding of PMMA-Ti/Cu/Ti substrates has been developed and used in the electrodeposition of Ni microparts for prototype LIGA development at SNL, CA. Alternative molding processes that minimize xray beam line use and reduce processing time are of interest for the rapid fabrication of large quantities of microparts. The objective of this investigation is to examine,...

The Skellefte mining District is located in northern Sweden and comprises Palaeoproterozoic, metamorphosed, supracrustal rocks and associated intrusive rocks, which are all host to several ore deposits. Modelling was performed in the GoCAD software platform, using structural geology and petrology as well as magnetic, gravity, seismic, electric and electromagnetic geophysical data, in order to p...

This paper summarises the use of digital remotely sensed data for Quaternary deposits mapping in central Sweden. Landsat TM scene of the beginning of May 1985 was applied. Only six groups of quaternary deposits were distinguished. The classification accuracy of the resultant map was about 50 % in average. Comparison was done with the existing map of Quaternary deposits.

Despite studies focusing on soil substrates (carbon and nitrogen) heavy metal availability, the impact of diversified parent materials in arid alkaline regions has received little attention. To reveal influence material, we investigated four different materials: fluvio-marine, Nile alluvial, lacustrine, aeolian deposits. We assessed effect through selected physical chemical properties, such as ...