TīmeklisLearn more about lanthanum hexaboride, LaB6 line position and line shape standard for XRD, NIST-660C. We enable science by offering product choice, services, process excellence and our people make it happen. TīmeklisThis Standard Reference Material (SRM) is intended for use in calibration of diffraction line positions and line shapes determined through powder diffractometry. A unit of …
Certification of Standard Reference Material 660b NIST
Tīmeklistilt were calibrated using a lanthanum hexaboride (LaB6) standard reference material (NIST SRM 660a LaB6) and the calibration parameters were applied to all patterns. After cali-bration, the 2D patterns were integrated to obtain standard powder diffraction patterns. A pattern collected from an empty Kapton capillary (using the same … Tīmeklisof the calibration standard, LaB6, is shown in Figure 2.12. In this image, each of the arcs is a crystalline peak. The x-y directions are the detector pixels, which are 2048 x 2048. The detector geometry is shown in Figure 2.13. The incoming beam interacts with the sample at a grazing incidence of roughly 3 to minimize Si diffraction. tekes
Reference Materials NIST
Tīmeklis1999. gada 14. janv. · SRM standards were particularly designed for this quest, and particularly LaB6 SRM 660 which is the recommended standard for calibration by the JCPDS-ICDD (Powder Diffraction 3, 209-218, 1988). However, tests were also on Al2O3 SRM 1976, quartz and Na5Cr3F14 choosen for medium fluorescence problems with … Tīmeklis2001. gada 23. aug. · If the LaB6 standard is only meant to provide peak profiles, one shouldn't be concerned with preferred orientation. We want to use the standard to qualify our lattice parameter determination procedures, as well as our instrumental effects. We indeed don't need (and I personally don't believe either) a precision of 8 … Tīmeklis2024. gada 30. marts · The new SRM 2000 is the first thin-film, high-resolution diffraction SRM. It consists of 25 mm x 25 mm pieces of a silicon wafer with a Si-Ge epilayer. … tekemonia