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46 SPECTROSCOPY


NEXT-GEN X-RAY CRYSTALLOGRAPHY


Paul Swepston introduces a benchtop X-ray crystallography system with hybrid photon counting detector


R


iding on the success of its previous generation of products, an expert


in X-ray crystallography has recently developed a new benchtop X-ray crystallography system.


Te new XtaLab mini II


system from Rigaku differs from its predecessor by the inclusion of a hybrid photon counting (HPC) detector, called the HyPix-Bantam. HPC detectors are at the cutting edge of diffraction technology, and are widely used at synchrotron beamlines due to their high sensitivity and fast read-out speeds. Te whole system is controlled by the popular CrysAlisPro


software,


which offers users the ability to complete their structure determination with one software package.


Te XtaLab mini II cabinet is compact and robust. With dimensions of just 560 x 395 x 674mm and a weight of approximately 100kg, it is a very small diffractometer, which makes it easy to install almost anywhere. Te control buttons on the front display are clearly labelled, and the fail-safe radiation enclosure means that the system is safe and easy to use even for inexperienced users. Tis lends itself well to being used as a teaching tool. Although the door is opaque, users are still able to view the inside of the cabinet via a camera linked to the PC. Should low temperature data collection be required, the diffractometer is compatible with various cryo devices, such as Oxford Cryosystems’ CryoStream 800 attachment.


Te system is equipped with a molybdenum fine focus X-ray source and coupled with Shine optics for enhanced flux. For easy maintenance and low cost of ownership, it uses a standard X-ray tube, which is readily available should a replacement ever be required.


Goniometer Te entire system has just three moving parts: the shutter and the phi and omega axes of the goniometer (Fig. 2). Te latter of these were designed specifically for ease of mounting – useful when training new


Fig. 1. The XtaLab mini II cabinet design


Fig. 2. View inside the XtaLab mini II diffractometer


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