· Plane, kinematic gratings

· High Vacuum 10E-6 torr (UHV optional)

· Scanning or CCD detection

· Avail. with toroidal optics

The grazing incidence X-ray Czerny-Turner (XCT) uses plane gratings and provides fixed focus and fixed slit positions. It is different from Rowland circle systems. Use the XCT with experimental sources that cannot be scanned, and large experimental chambers, like reflectometers. The XCT dual grating rack is standard equipment for wavelength range and resolution flexibility while under vacuum. It can be supplied o-ring sealed for high-vacuum or all metal sealed for true UHV compatability.

This design lends itself not only to fixed slit positions. The geometry can be exploited by using toroidal mirrors (possibly also grazing angle off axis parabolic mirrors) for good point-to-point imaging. It serves well between high harmonic generation laser sources and angle resolved photoemission experiments, for example. When temporal characteristic of the laser source are important, this design is available in an off-plane format to minimize pulse stretching as the diffraction grating rotates to wavelengthof interest.