Four-Circle Single Crystal Diffractometer
Four-Circle Single Crystal DiffractometerFCD Four-Circle Single Crystal Diffratometer
- The Four-Circle Single Crystal Diffractometer (FCD) acquires data on crystal structures by rotating samples in the direction of four axes. It is used to measure and analyze single-crystal structures and the texture of metallic materials. What is more, it is useful for researches on hydrogen bonding, static/dynamic disorder, and structural/magnetic phase transition.
Contact information
-
Inhwan OhPrincipal researcherNeutron Science Division+82-42-868-4766
Specifications
| Monochromator | Take-off angle | -45° |
|---|---|---|
| Reflection plane | Ge(311), Ge(422), Ge(111) | |
| Wavelength | λ(311)=1.3143, λ(422)=0.8892, λ(111)=2.5151Å | |
| Neutron flux | 1.68x106/cm2/sec | |
| Mosaic width | ~10 min (FWHM) | |
| Size & thickness | Φ100mm, 4mm | |
| Collimators | Rotating shutter collimator (α1) | 20' , 30' , open(~50') |
| Second collimator (α2) | Open(~55') | |
| Third collimator (α3) | Free setting with slits | |
| Detectors | He-3 proportional counters (tube: dia. 50mm) | |
Sample environments
| 4K CCR |
|---|
Applicable areas
- Crystal structure analysis
- Hydrogen bonds
- Static & Dynamic Disorder
- Structural & magnetic phase transitions
- Metal texture
- Neutron shielding materials
Representative achievements
- Park et al., Physica B, 551 (2018) 89
- Park et al., J. Cryst. Growth, 441 (2016) 46
- Song et al., APL, 104 (2014) 252904
- Chang et al., PRB, 85 (2012) 064402