出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We describe the upgraded Magnetic Proton Recoil fusion neutron spectrometer (MPRu). The original
MPR was installed at the JET fusion experiment in 1996, and was designed for diagnosis of the
14-MeV neutron emission in high-power deuterium-tritium (DT) fusion experiments. The goal of
the MPR upgrade project is to widen the operational range of the instrument to the full range of
fusion relevant neutron energies, 1.5 < En < 18 MeV, to increase its flexibility and to improve the
background immunity of the spectrometer’s focal plane detector. In this paper we describe how
these goals have been achieved by the installation of a new detector hodoscope, based on phoswich
scintillators, in combination with state-of-the-art digital data acquisition electronics and enhanced
monitoring capabilities. Examples of test results and predicted performance are given.
