McPherson - Model 265 - UHV Normal Incidence off Plane Eagle Monochromator
McPherson Normal Incidence Monochromator (NIM) as built for the Chemical Dynamics research team at the Lawrence Berkeley National Lab Advanced Light Source (ALS). At ALS it is called 'beamline 9.0.2.' It is a very productive beamline and has been used for a great deal of experimental work. McPherson provided this 6.65-meter focal length off-plane monochromator complete. It includes precision slits that may be rotated about the optical axis and real-time, laser interferometic feedback of grating rotation and focus position. The grating translates over a distance greater than 1-meter to maintain focus at a selected wavelength.
Product Details
- 5 to 40-eV
- 6.65-meter focal length
- > 120,000 resolving power
- Index between 3 or 4 gratings under vacuum
Eagle and NIM Story
In 1959 Dr. Namioka et al worked at the University of Chicago and later cooperated with Air Force Cambridge. His work was responsible for developing Off- Plane Eagle Type Monochromators and Spectrographs. He also was instrumental in the development of the Seya Namioka – Semi Normal Incidence Monochromator. At that time, being near the McPherson facility, he cooperated with Paul McPherson in the first commercial Seya Namioka type instrument. High resolution vacuum spectroscopy had taken gigantic steps! In the early 1960’s, McPherson started to design and build Eagle and NIM type vacuum monochromators. Some of these 2, 3, 4, and 6.6 m fl versions helped pioneer research regarding light sources, optical coatings, etc. The Bureau of Standards in the U.S.A. and Germany utilize McPherson monochromators. In 1964/65 two 6.65 meter focal length Off-Plane Vacuum Type Eagle Monochromator Spectrographs were built for advanced research and development and are still in use today! The VUV area changed into the UHV requirements and McPherson’s monochromators became valuable tools in emerging synchrotrons and science laboratories around the world.
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McPherson - Model 265 - UHV Normal Incidence off Plane Eagle Monochromator - Datasheet
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