Rigaku Ultima IV




The Ultima IV represents the state-of-the-art in multipurpose X-ray diffraction (XRD) systems. Incorporating Rigaku's patented cross beam optics (CBO) technology for permanently mounted, permanently aligned and user-selectable parallel and focusing geometries, the Ultima IV X-ray diffractometer can perform many different measurements...fast. With a multipurpose diffractometer, performance is measured by not only how fast you perform an experiment but also how fast you can switch between different types of experiments. Individual experiments are optimized with accessories like the D/teX Ultra high-speed position sensitive detector system, but the speed between experiments is radically improved with the combination of the automated alignment and CBO.

The Ultima IV incorporates fully automatic alignment. When coupled with CBO and the in-plane arm, the automatic alignment capability makes the Ultima IV X-ray diffractometer the most flexible system available for multipurpose applications. This diffractometer can be set up for SAXS and Thin Film measurements.

Data collection on Rigaku Ultima IV can be performed only at room temperature on stable samples.

BRUKER APEX II Diffractometer can be used to obtain powder patterns of samples sealed in 0.3 -1 mm capillaries. Data collection can be performed at the temperature range 80 - 320 K.


The instrument is located in 1709 Gilman Hall. Enquiries should be directed to Dr. Arkady Ellern. Phone 515-294-7956 (office).  The instrument is primarily walk-on (iLab Kiosk), but can also be reserved using iLab Calendar for special projects.  Reservations require approval.

FY'18 Rates

This instrumentis intended to be used by students and other researchers on-campus. Staff will provide training. The hourly rates are listed below. NOTE: There is a mimimum billable increment of one-half hour.

User Category Instrument Charge Staff Assistance
ISU researchers $15.40 $30
Non-ISU academic users $23.10 $45
Non-academic users $46.20 $90


Rigaku Ultima IV Resources