![]() ![]() The typical user of the SPI Supplies x-ray windows would probably be someone making use of an x-ray port associated with a synchrotron or a laser generated x-ray plasma source. If you are getting started in this field, then you might want to become familiar with previously published papers in this field. The SPI X-ray Membrane Windows for x-ray microscopy are designed specifically for use with x-ray microscopes and other soft x-ray applications. Window Thickness Si3N4: 100, 150 and 200 nm available For applications in x-ray microscopy the windows have the following specifications:įrame Thickness: 200 µm standard, (381 µm on special order, 30% pricing premium, option not available in packs of 10) The windows are very similar in construction to the highly successful SPI silicon nitride membrane window grids for transmission electron microscopy. Thinner windows are also used when working "off axis", that is, where the membrane is at an angle to the beam so the x-rays now see a greater effective thickness. The softer the x-rays the less the penetrating layer, therefore requiring a thinner and thinner window, which unfortunately also means a higher and higher price. Synchrotron radiation is sometimes the source but laser generated x-ray plasmas (where there is a high powered laser beam focused on a target material which leads to the generation of characteristic x-rays) could also be involved. In some parts of the world instead of "soft x-ray", the terms "extreme UV" or "vacuum UV" are used. ![]() The SPI Supplies brand of Silicon Nitride Membrane Windows for X-ray Microscopy provide the highest transmission possible for soft x-rays (e.g.
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