Slits: Variable vertical and fixed horizontal slits.
Monochromator: KOHZU double crystal monochromator with a water-cooled flat first crystal and a sagittally focused second crystal positioned for a fixed exit beam condition. Located ~18 m from source and ~6 m from sample position.
Mirror: Mirror system consisting of two vertically stacked, fused silica, spherical mirrors, to provide vertical focusing and harmonic rejection. One of the mirrors is rhodium coated and the other is uncoated. Located ~19.7 m from source.
Beam Monitor System: Includes ion chambers, attenuators, slits, experimental shutter, collimator and beam stop.
Crystalogic diffractometer with ADSC Q4R CCD detector mounted on a vertical translation axis; detector distance motor driven through beamline control program. Fluorescence detector and sample alignment camera mounted on diffractometer. Sample cooled with an Oxford Instruments “Cryostream”.
Computer System Hardware & Software
The beamline is controlled using a Windows based control program. Data processing computers available are several Linux workstations. Deata backup on DVDs or convenient connection to Firewire or USB2.0 external drives.