This state-of-the-art instrument was purchased in 2013, and with the possibility of automatic sample changer for up to 90 samples, makes this instrument the main workhorse of the lab.
Instrument specifications
- CuKα radiation
- 2.5° primary and secondary Soller slits
- 60-90 position sample changer
- LynxEye™ SuperSpeed Detector
- Variable divergence slit: "V6" means that the divergence slit (the slit between the X-ray source and the sample) opens automatically such that the illuminated length on the sample always remains 6 mm (when using fixed divergence slit, the illuminated length on the sample changes from long to short - this is just geometry).
Well suited for:
- Fast XRD scans for phase identification
- Samples that can wait in a queue for hours before being measured (the engineer will load the samples into the instrument every morning and afternoon)
- Energy-discriminating detector makes it useful also for the fluorescing elements (Fe, Co, Mn)
Not so good for:
- Samples that change fast in air (then the D8 Focus may be better to use, due to the booking system)
- Samples that doesn't fit the standard sample holders
- Measurements where you want to avoid the Kα2 contributions (then the A-unit is recommended)
Photo: Kristin Høydalsvik
Specifications, standard powder diffraction set-up (all days except Wednesdays)
Bragg-Brentano geometry
θ–θ operating mode
Data collection from 5 to 105° 2θ (typically)
Specifications, grazing-incidence diffraction (GIXRD) set-up (Wednesdays, except holiday periods)
Well-suited for studying the structure of polycrystalline films on substrates.
- Göbel mirror → parallel beam
- Incident angle fixed at grazing angle (for example 0.5 to 3°)
- Scanning detector angle (typically 5 to 80 degrees 2θ)
Before you begin
- Contact equipment responsible: Kristin Høydalsvik Wells, kristin.h.wells@ntnu.no, room K2-122
- Equipment may not be used without training.
- Access to the lab will be given after training.
Relevant links:
XRD introduction from University of Cambridge