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TOSCA neutron spectrometer: The final configuration

Colognesi, D., Celli, M., Cilloco, F., Newport, Robert J., Parker, S.R., Rossi-Albertini, V., Sacchetti, F., Tomkinson, John, Zoppi, M. (2002) TOSCA neutron spectrometer: The final configuration. Applied Physics A: Materials Science & Processing, 74 . S64-S66. ISSN 0947-8396. (doi:10.1007/s003390101078) (KAR id:8214)

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The forward and backward scattering parts (phase 11) of the new neutron spectrometer, TOSCA, replacing the old TFXA and TOSCA (phase 1), have been successfully installed at the ISIS pulsed neutron source. The results show a significant enhancement in the counting rate due to the larger detector area. The improved resolution (to 1.5%-3% of the energy transfer) as compared with the previous instruments (TXFA: 2.5%-3.5%; TOSCA-I: 2%-3.5%) has been achieved by increasing the primary flight path from 12 m to 17 m. A chopper has been added in order to avoid neutron frame overlap and to reduce the fast neutron background. Additional diffraction capability will be installed in the near future. An example of the high resolution that is routinely available is provided by the spectrum of potassium hydrogen phtalate at 20 K.

Item Type: Article
DOI/Identification number: 10.1007/s003390101078
Subjects: Q Science
Q Science > QC Physics
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Bob Newport
Date Deposited: 26 Jun 2008 17:21 UTC
Last Modified: 28 May 2019 13:44 UTC
Resource URI: (The current URI for this page, for reference purposes)
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