![]() ![]() use an EDS system with a high performance detector that allows to obtain a complete compositional spectrum in a short time, potentially resolved even at low energies (e.g.perform WDS compositional maps with high spatial resolution thanks to the LaB 6 source.have a greater sensitivity that allows to detect trace elements in the order of hundreds of ppm, thanks to the presence of spectrometers with specific geometries.reduce analytical times, thanks to the presence of 5 WDS spectrometers.analyze light elements starting from Be, thanks to the presence of specific and dedicated analyzer crystals (LDE1 LDEB LDE2).The analytical potential of this new tool therefore allows to: An additional ion pump allows for excellent vacuum conditions that guarantee greater stability of the incident electronic. In its standard configuration, the instrument works with a W filament. The electron source can be constituted by a W filament (ideal for compositional analyzes) or by a LaB 6 crystal, which allows to obtain a particularly thin beam shape, thus increasing the spatial resolution (mainly used for applications of mapping). A solid state (SDD) energy dispersion detector (EDS) allows to instantly acquire the emission spectrum and quickly identify the elements in the sample. ![]() The instrument, installed in 2020 at the "Filippo Olmi" laboratory of the Department of Earth Sciences in Florence, is equipped with 5 wavelength dispersion spectrometers (WDS), each equipped with different analyzer crystals, some of which are dedicated to the analysis of light elements (1: TAPJ, LDE1, PETJ, LDEB 2: LIFL, PETL 3: LIFH, PETH 4: LIF, PETJ 5: TAPJ, LDE2) and gas flow and sealed detectors. The instrument is particularly suitable for the quantitative analysis of the elements (Z> 3) in minerals, glasses, metal alloys and other solid matrices after calibration with suitable standards. The electronic microprobe is the main tool for obtaining in situ chemical composition of any solid object with a high spatial resolution (in the order of microns). ![]()
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