Initial testing of a Compact Crystal Positioning System for the TOPAZ Single-Crystal Diffractometer at the Spallation Neutron Source

Journal Article · Thu Jan 01 00:00:00 EST 2009 · Journal of Physics Conference Series

OSTI ID:959007

Frost, Matthew J ^[1]; Austin, Michael D ^[1]; Viola, Robert ^[1]; Thomison, Jack ^[1]; Carmen, Peter ^[2]; Hoffmann, Christina ^[1]; Miller, Echo M ^[1]; Mosier, Lisa B ^[1]; Overbay, Mark A ^[1]

---

1. ORNL
2. Square One Systems Design

A precise, versatile, and automated method of orienting a sub-millimeter crystal in a focused neutron beam is required for e cient operation of the TOPAZ Single Crystal Di ractometer at the Spallation Neutron Source at Oak Ridge National Laboratory. To ful ll this need, a Compact Crystal Positioning System (CCPS) has been developed in collaboration with Square One Systems Design in Jackson, Wyoming. The system incorporates a tripod design with six vacuum-compatible piezoelectric linear motors capable of < 1 m resolution. National Instruments LabVIEW provides a means of system automation while at the same time accommodating the modular nature of the SNS sample environment control software for straightforward system integration. Initial results in a cryogenic test environment will be presented, as well as results from ambient tests performed at the Advanced Photon Source at Argonne National Laboratory.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 959007
• Journal Information: Journal of Physics Conference Series, Vol. 251
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
ANL
AUTOMATION
CRYOGENICS
DESIGN
DIFFRACTOMETERS
MONOCRYSTALS
MOTORS
NEUTRON BEAMS
NEUTRON SOURCES
ORNL
POSITIONING
RESOLUTION
SPALLATION
TESTING