Abstract
Small-angle neutron scattering (SANS) is one of the most popular and oversubscribed techniques at every user facility for neutron scattering studies of condensed matter that offers it. The limiting features in SANS experiment design are the length of time required to make a measurement and the minimum momentum transfer Q that can be measured, and the resolution. In the traditional pinhole-camera geometry, these two constraints are inextricably linked, forcing tradeoffs. However, a number of methods have been developed for reducing this linkage, thus allowing higher throughput while retaining high resolution and a low minimum Q. These methods include using multiple confocal pinhole apertures, lenses, and focusing mirrors. We compare and contrast these options and discuss their suitability for use on instruments at pulsed neutron sources.
Original language | English |
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Pages (from-to) | 22-27 |
Number of pages | 6 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 529 |
Issue number | 1-3 SPEC. ISS. |
DOIs | |
State | Published - Aug 21 2004 |
Externally published | Yes |
Funding
Argonne National Laboratory is supported by the United States Department of Energy-Basic Energy Sciences under Contract No. W-31-109-ENG-38. This work was partially supported by the Special Coordination Funds for Promoting the Ministry of Education, Culture, Sports, Science, and Technology of the Government of Japan.
Keywords
- Collimation
- Instrumentation
- Lens
- Mirror
- Neutron scattering
- Resolution
- SANS