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

Journal Article · Sat Nov 15 00:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4885477· OSTI ID:22308796

Salewski, M.; Korsholm, S. B.; Leipold, F.; Nielsen, S. K.; Rasmussen, J.; Stejner, M. ^[1]; Eriksson, J.; Ericsson, G.; Hjalmarsson, A. ^[2]

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1. Association Euratom - DTU, Technical University of Denmark, Department of Physics, Kgs. Lyngby (Denmark)
2. Association Euratom - VR, Uppsala University, Department of Physics and Astronomy, Uppsala (Sweden)

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.

• OSTI ID: 22308796
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 11; Other Information: (c) 2014 Euratom; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAMS
EMISSION SPECTROSCOPY
ENERGY SPECTRA
IONS
JET TOKAMAK
NEUTRON EMISSION
NEUTRON SPECTROMETERS
NEUTRON SPECTROSCOPY
RESPONSE FUNCTIONS
SENSITIVITY
TIME-OF-FLIGHT METHOD
TIME-OF-FLIGHT SPECTROMETERS
WEIGHTING FUNCTIONS