Details

Autor(en) / Beteiligte

• Ollivier, J
• Plazanet, M
• Schober, H
• Cook, J.C

Titel

First results with the upgraded IN5 disk chopper cold time-of-flight spectrometer

Ist Teil von

• Physica. B, Condensed matter, 2004-07, Vol.350 (1), p.173-177

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2004

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• The primary spectrometer of the cold time-of-flight instrument IN5 at the ILL has been upgraded over the last 2 years. After commissioning in spring 2003 the absolute gain in flux when compared to the former spectrometer setting has been measured by gold-foil activation. Within standard configuration, namely, an incident wavelength of λ=5 A ̊ and chopper speeds chosen such that they correspond to identical energy resolution (δE≃100 μeV) and time frame, the flux has been found an order of magnitude higher on the upgraded instrument. Apart from the gain in flux the new spectrometer allows to work with appreciably improved resolution (up to a factor 2) at identical wavelength.