Request InfoMcPHERSONCHELMSFORD, Mass., July 29, 2015 — The 251MX spectrometer from McPherson Inc. is now available with improved efficiency over a wider range and a gold-coated diffraction grating. Suitable for work from 20 to 80 nm, the grating enables measurements of extreme-ultraviolet (EUV), vacuum-ultraviolet radiation, as well as soft x-rays, with subnanometer resolution. To resolve closely spaced spectral lines, an adjustable slit width provides the best light throughput and better spectral resolution. 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