Vacuum Compatible Czerny-Turner Monochromators for Scanning, Imaging and CCD Array Spectroscopy in the ~105-nm to IR Range Clean Stainless Steel Construction O-ring sealed systems achieve 10^-6 torr vacuum Optional Ultra High Vacuum (UHV) metal sealed versions for 10^-10 torr High Efficiency Broadband Al+MgF2 Coatings Precision Micrometer Adjustable Slits Optional Dual Turret with "Snap-In" gratings Gratings rotate about their apex Imaging Optics & Large focal plane Rugged Construction with Multiple slit locations Except for the vacuum enclosure and the broadened wavelength range to 105-nm, the General Features for McPherson Vacuum Models are practically identical to 207, 2061, 209 & 2062 These instruments offer all of our great features and options: a wide variety of patented SNAP IN diffraction gratings, efficient broadband reflective coatings, and master polished optics, plus ... Better throughput and wider range - McPherson Czerny-Turner instruments with focal lengths greater than 0.67-meters allow you to use larger 120-mm x 140-mm grating or a 110-mm x 110-mm grating. The large grating offers almost 40% more area, achieving a faster f/number, and more throughput. In these models the grating can also rotate through an auxiliary 20° for extension of wavelength range. For the 1200-g/mm grating the high wavelength changes from 1300-nm to 1575-nm (more than 20% extra wavelength coverage!) High Performance Drive - All instruments use the Model 789A-3 digital scanning drive system directly coupled to a mechanical lead screw wavelength drive. The mechanical screw and sine arm enable manual positioning and generate the sinusoidal motion required for linear wavelength readout when scanning a spectrometer. The mechanical sub-step insures stability and repeatability as compared to worm drive systems. In addition, this approach allows users to manually set up experiments and tune without computer support. Accessories - McPherson supplies a full line of accessories including sources and detectors for use with air path and vacuum instruments. Equipped these instruments with multi-fiber imaging systems, sample compartments, filter wheels, choppers, sources, detectors, etc.

1.33-m focal length Model 209 Vacuum Monochromator 1.0-m focal length Model 2061 Vacuum Monochromator 0.67-m focal length Model 207 Vacuum Monochromator

For detailed specifications as to wavelength resolution and dispersion please see the pages describing the atmospheric versions of the 207, 2061, 209 & 2062

Remember that the low wavelength limit when under vacuum should be around 105-nm and that the attainable vacuum is about 10^-6 torr. On the pages for atmospheric models you will not see what gratings we have available (blazed ruled replica and holographic types) for the deep and vacuum ultraviolet (VUV) region. Please contact us today to discuss the details of your requirement!

Vacuum Compatible Czerny-Turner Monochromators for Scanning, Imaging and Microchannel plate intensified or CCD Array Spectroscopy in the ~105-nm to IR Range are also available in all metal sealed ultra high vacuum (UHV) versions. These ultra high vacuum versions have the same performance and features as the o-ring sealed vacuum systems except can be manufactured to attain vacuum levels of 10^-10 torr with appropriate pumping.