This title appears in the Scientific Report :
2006
Please use the identifier:
http://dx.doi.org/10.1016/j.physb.2006.05.343 in citations.
IN12-UFO: new frontiers for cold triple-axis spectroscopy
IN12-UFO: new frontiers for cold triple-axis spectroscopy
The IN12 instrument is operated by the Research Centre at Julich in collaboration with CEA Grenoble as a CRG-B instrument at the Institute Laue Langevin in Grenoble. As a triple-axis spectrometer for cold neutrons it is dedicated for high-resolution studies of low-energy excitations. To meet further...
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Personal Name(s): | Schmidt, W. |
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Schmalzl, K. / Ohl, M. | |
Contributing Institute: |
JCNS; JCNS Streumethoden; IFF-ISM Neutronenstreuung; IFF-INS |
Published in: | Physica / B, 385-386 (2006) S. 1073 - 1076 |
Imprint: |
Amsterdam
North-Holland Physics Publ.
2006
|
Physical Description: |
1073 - 1076 |
DOI: |
10.1016/j.physb.2006.05.343 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) |
Series Title: |
Physica B: Condensed Matter
385-386 |
Subject (ZB): | |
Publikationsportal JuSER |
The IN12 instrument is operated by the Research Centre at Julich in collaboration with CEA Grenoble as a CRG-B instrument at the Institute Laue Langevin in Grenoble. As a triple-axis spectrometer for cold neutrons it is dedicated for high-resolution studies of low-energy excitations. To meet further challenges as a state-of-the-art instrument we will now upgrade IN12 with a multi-analyzer option. IN12 will then be equipped with a large 2-dimensional position sensitive detector and an array of 15 individual analyser blades which can be rotated and positioned separately in order to map the scattered beam on a user-chosen path in Q-omega-space. We refer to this set-Lip as IN12-UFO (Universal Focusing Option). The innovative flexibility of the analyzer array is realized by completely non-magnetic drive mechanisms where all relevant parameters are controlled by an absolute encoding system. This mechanics allows to position the individual analyzers so that (a) there are no gaps or overlaps as seen front the sample (optimum coverage) and (b) all reflected beams from the analyzers meet at one single focus point on their way to different spots on the detector surface. The focus point is controlled by a movable diaphragm and provides the only opening between analyzer and detector shielding to prevent cross-talk and to keep the background low. We will present further details of this set-up and demonstrate its flexibility and multiplex advantages for specific physical applications. (c) 2006 Elsevier B.V. All rights reserved. |