McPherson Model 251MX SXR spectrometer with diffraction grating

Thursday, 30 July, 2015 | Supplied by: McPherson


McPherson’s SXR spectrometer, the Model 251MX, comes with a gold-coated diffraction grating that is suitable for work from 20 to 80 nm. It joins the gold-coated 2400 g/mm and 1200 g/mm gratings. Users can exchange gratings for range or efficiency, even while the instrument is under vacuum. The unit’s grazing incidence angles provide good reflective efficiency.

The diffraction grating is available for new and existing instrumentation and may be retrofitted in the field. It is useful for measurements of SXR, EUV and VUV radiation and emission spectra with subnanometre spectral resolution. To resolve closely spaced spectral lines, the adjustable slit width provides for high light throughput and spectral resolution.

The adjustable detector mount accommodates direct-detection digital cameras or microchannel plate intensifiers. It also allows users to reach longer or shorter wavelengths and the ability to collect different simultaneous wavelength swaths for spectroscopy, plasma physics and process monitoring, all without compromising resolution or signal strength.

Applications for the extreme-vacuum ultraviolet and soft X-ray spectrometer include plasma physics, astrophysics and spectral test and calibration. It is a high-vacuum instrument working at 10E-6 Torr; ultrahigh-vacuum 10E-10 Torr versions are also available.

Online: McPherson
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