Instrumentation for neutron emission spectrometry in use at JET
2010 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 623, no 2, 681-685 p.Article in journal (Refereed) Published
The present contribution discusses two neutron spectrometers: the time-of-flight spectrometer (TOFOR) and the magnetic proton recoil spectrometer (MPRu). TOFOR uses fast plastic scintillators equipped with digital time-stamping electronics to register the time of each eligible scintillation event. The time trace for each detector is acquired practically dead-time free. The detectors of the MPRu are of phoswich type and each detector is connected to a digital transient recorder card that stores the full waveform for an event. By using phoswich detectors, pulse-shape discrimination techniques can be applied offline to distinguish signal events from background. A future upgrade of TOFOR could be digital “hybrid” cards, which store correlated time and waveform information. This information can be used to decrease the background level in the ttof spectrum, thereby increasing the operating range.
Place, publisher, year, edition, pages
2010. Vol. 623, no 2, 681-685 p.
Fusion diagnostic, Neutron emission spectrometry, MPRu, TOFOR, Data acquisition systems
IdentifiersURN: urn:nbn:se:uu:diva-121517DOI: 10.1016/j.nima.2010.02.255ISI: 000284343600010OAI: oai:DiVA.org:uu-121517DiVA: diva2:305543