KWS-3, the new focusing-mirror ultra small-angle neutron scattering instrument and reflectometer at Jülich
✍ Scribed by E Kentzinger; L Dohmen; B Alefeld; U Rücker; J Stellbrink; A Ioffe; D Richter; Th Brückel
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 225 KB
- Volume
- 350
- Category
- Article
- ISSN
- 0921-4526
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✦ Synopsis
In J .
ulich, a new high-resolution small-angle neutron scattering (SANS) instrument and reflectometer has been built. The principle of this instrument is a one-to-one image of an entrance aperture on a 2D position-sensitive detector by neutron reflection on a double-focusing toroidal mirror. It permits to perform SANS studies with a scattering wave vector resolution between 10 À3 and 10 À4 ( A
À1
with considerable intensity advantages over pinhole-SANS instruments. To date, KWS-3 is the worldwide unique SANS instrument running on this principle. We present here the characterization of the image produced by the mirror and a measurement of the scattering from a diffraction grating.