Informing Spectroscopists for Over 40 Years

Optical spectrum from 8 eV to 2000 eV from three gratings

7 November 2018 | Product
by Ian Michael

McPherson’s Model 251MX is easy to use and operates over the 0.5–150 nm range by indexing diffraction gratings. It is optimised for high-energy photons including soft x-ray and extreme UV. The Model 251MX does not scan with point detectors, it works exclusively with microchannel plate intensifiers and/or direct detection CCD array detectors. Regardless of type, the detector is located on a flat focal plane. The diffraction gratings are from holographic masters and their laminar groove profile, that looks like a square wave, results in diffraction efficiency in even orders of light lower than either sawtooth or sinusoidal profiles. This helps keep a high-energy spectrum clean and more easily interpretable—especially at short wavelengths.

Request Information about this Product

By submitting this form you agree that we may pass this information to the company who you are enquiring about.