Gain stabilization control system of the upgraded magnetic proton recoil neutron spectrometer at JET

Henrik Sjöstrand, E. Andersson Sundén, S. Conroy, G. Ericsson, M. Gatu Johnson, L. Giacomelli, G. Gorini, C. Hellesen, A. Hjalmarsson, S. Popovichev, E. Ronchi, M. Tardocchi, M. Weiszflog

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Abstract

Burning plasma experiments such as ITER and DEMO require diagnostics capable of withstanding the harsh environment generated by the intense neutron flux and to maintain stable operating conditions for times longer than present day systems. For these reasons, advanced control and monitoring (CM) systems will be necessary for the reliable operation of diagnostics. This paper describes the CM system of the upgraded magnetic proton recoil neutron spectrometer installed at the Joint European Torus focusing in particular on a technique for the stabilization of the gain of the photomultipliers coupled to the neutron detectors. The results presented here show that this technique provides good results over long time scales. The technique is of general interest for all diagnostics that employ scintillators coupled to photomultiplier tubes. © 2009 American Institute of Physics.
Original languageEnglish
Article number063505
Pages (from-to)-
JournalReview of Scientific Instruments
Volume80
Issue number6
DOIs
Publication statusPublished - 2009
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Instrumentation

Cite this

Sjöstrand, H., Sundén, E. A., Conroy, S., Ericsson, G., Johnson, M. G., Giacomelli, L., ... Weiszflog, M. (2009). Gain stabilization control system of the upgraded magnetic proton recoil neutron spectrometer at JET. Review of Scientific Instruments, 80(6), -. [063505]. https://doi.org/10.1063/1.3109682