First Data Acquired on the EQ-SANS Diffractometer at the Spallation Neutron Source

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Journal of Applied Crystallography

DOI:https://doi.org/10.1107/S0021889811034911· OSTI ID:1025384

Liu, Dazhi ^[1]; Hong, Kunlun ^[1]; Gao, Carrie Y ^[1]; Melnichenko, Yuri B ^[1]; Littrell, Ken ^[1]; Smith, Greg ^[1]; Zhao, Jinkui ^[1]

---

1. ORNL

The measurement of the conformation of a Generation-8 Polyamidoamine dendrimer is reported as an initial experiment using the Extended Q-range Small Angle Neutron Scattering (EQ-SANS) diffractometer at the Spallation Neutron Source at Oak Ridge National Laboratory (ORNL). The conformation parameters (radius of gyration, thickness of the soft shell etc.) are extracted by model fitting. The results are compared with data collected at the General-Purpose Small Angle Neutron Scattering at the High Flux Isotopic Reactor at ORNL. The comparison shows that the EQ-SANS diffractometer has comparable data statistics and Q resolution with shorter counting time over the measured Q-range.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR); 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: 1025384
• Journal Information: Journal of Applied Crystallography, Vol. 44, Issue 5; ISSN 0021--8898
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DIFFRACTOMETERS
NEUTRON SOURCES
NEUTRONS
ORNL
RESOLUTION
SCATTERING
SPALLATION
STATISTICS
THICKNESS