Generation of the neutron response function of an NE213 scintillator for fusion applicationsShow others and affiliations
Number of Authors: 11122017 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 866, p. 222-229Article in journal (Refereed) Published
Abstract [en]
In this work we present a method to evaluate the neutron response function of an NE213 liquid scintillator. This method is particularly useful when the proton light yield function of the detector has not been measured, since it is based on a proton light yield function taken from literature, MCNPX simulations, measurements of gammarays from a calibration source and measurements of neutrons from fusion experiments with ohmic plasmas. The inclusion of the latter improves the description of the proton light yield function in the energy range of interest (around 2.46 MeV). We apply this method to an NE213 detector installed at JET, inside the radiation shielding of the magnetic proton recoil (MPRu) spectrometer, and present the results from the calibration along with some examples of application of the response function to perform neutron emission spectroscopy (NES) of fusion plasmas. We also investigate how the choice of the proton light yield function affects the NES analysis, finding that the result does not change significantly. This points to the fact that the method for the evaluation of the neutron response function is robust and gives reliable results. (C) 2017 Published by Elsevier B.V.
Place, publisher, year, edition, pages
ELSEVIER , 2017. Vol. 866, p. 222-229
Keywords [en]
NE213 scintillator, Neutron spectroscopy, Response function, Proton light yield
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-270576DOI: 10.1016/j.nima.2017.04.023ISI: 000407863700029Scopus ID: 2-s2.0-85021229974OAI: oai:DiVA.org:kth-270576DiVA, id: diva2:1413830
Note
20200311
2020-03-112020-03-112024-03-15Bibliographically approved