Velocity-space sensitivity of the time-of-flight neutron spectrometer at JET

Asger Schou Jacobsen, Mirko Salewski, J. Eriksson, G. Ericsson, A. Hjalmarsson, Søren Bang Korsholm, Frank Leipold, Stefan Kragh Nielsen, Jesper Rasmussen, Morten Stejner Pedersen

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The velocity-space sensitivities of fast-ion diagnostics are often described by so-called weight functions. Recently, we formulated weight functions showing the velocity-space sensitivity of the often dominant beam-target part of neutron energy spectra. These weight functions for neutron emission spectrometry (NES) are independent of the particular NES diagnostic. Here we apply these NES weight functions to the time-of-flight spectrometer TOFOR at JET. By taking the instrumental response function of TOFOR into account, we calculate time-of-flight NES weight functions that enable us to directly determine the velocity-space sensitivity of a given part of a measured time-of-flight spectrum from TOFOR.
Original languageEnglish
Article number11E103
JournalReview of Scientific Instruments
Number of pages3
Publication statusPublished - 2014

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Authors: JET-EFDA Contributors


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