Diffractometer-Control Software For Bragg-Rod Measurements

Journal Article · Wed May 12 04:00:00 EDT 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1758020· OSTI ID:20652846

Yacoby, Y; Bretschneider, M; Sowwan, M ^[1]; Walko, D A ^[2]; Brewe, D; Stern, E A ^[3]; Clarke, R ^[4]; Pindak, R ^[5]

---

1. Racah Institute of Physics, Hebrew University, Jerusalem, 91904 (Israel)
2. MHATT-CAT, Argonne National Laboratory, Argonne, IL 60439 (United States)
3. Department of Physics, University of Washington, Seattle, WA 98195 (United States)
4. Department of Physics, University of Michigan, Ann Arbor, MI 48109 (United States)
5. NSLS, Brookhaven National Laboratory, Upton, NY 11973 (United States)

We present Generalized Diffractometer Control (gdc), a diffractometer-control software package developed specifically for high-precision measurements of Bragg rods; we discuss its features and analyze its performance in data collection. gdc, implemented at several APS beamlines, controls a six-circle diffractometer in either Eulerian or kappa geometry, yet does not assume a mechanically ideal diffractometer; instead, the measured directions of the diffractometer axes (and the direction of the incident beam) are input parameters. The Labview-based program features a graphical interface, making it straightforward to find all the commands and operations. Other features include optimized scans along Bragg rods, straightforward background subtraction, and extensive sets of pseudomotors.

• OSTI ID: 20652846
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 705; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
COMPUTER CODES
COMPUTERIZED CONTROL SYSTEMS
GEOMETRY
INTERFACES
MEASURING METHODS
PERFORMANCE
SYNCHROTRON RADIATION
THIN FILMS
X-RAY DIFFRACTION
X-RAY DIFFRACTOMETERS