Neutron emission spectroscopy at JET--Results from the magnetic proton recoil spectrometer (invited)

Ericsson, Go¨ran; Ballabio, L.; Conroy, S.; Frenje, J.; Henriksson, H.; Hjalmarsson, A.; Ka¨llne, J.; Tardocchi, M.
January 2001
Review of Scientific Instruments;Jan2001, Vol. 72 Issue 1, p759
Academic Journal
The principles and operation at Joint European Torus (JET) of the first magnetic proton recoil (MPR) spectrometer for measurement of fusion neutron spectra are described. Some technical aspects of the instrument are discussed, including energy calibration and monitoring system. Data from the recent experimental campaign with tritium at JET are presented as examples of the MPR’s diagnostic abilities. It is shown that the spectrometer is a flexible and versatile instrument, capable of delivering high-quality data on a number of plasma parameters. In particular, the observation of the so-called α knock-on effect in neutron emission spectroscopy is discussed. © 2001 American Institute of Physics.


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