A 60 kV neutral lithium diagnostic beam probes the edge plasma of JET for the measurement of electron density profiles. This paper describes recent enhancements of the diagnostic setup, new procedures for calibration and protection measures for the lithium ion gun during massive gas puffs for disruption mitigation. New light splitting optics allow in parallel beam emission measurements with a new double entrance slit CCD spectrometer (spectrally resolved) and a new interference filter avalanche photodiode camera (fast density and fluctuation studies). © 2012 Euratom.
All Science Journal Classification (ASJC) codes
Brix, M., Dodt, D., Dunai, D., Lupelli, I., Marsen, S., Melson, T. F., ... Zoletnik, S. (2012). Recent improvements of the JET lithium beam diagnostic. Review of Scientific Instruments, 83(10), -. [10D533]. https://doi.org/10.1063/1.4739411