Design and Construction of a Fast Ion Loss Faraday Cup Array Diagnostic for JET

Darrow, D.S. ; Bauumel, S. ; Cecil, F.E. ; Kiptily, V. ; Ellis, R. ; Pedrick, L. ; Werner, A.

Princeton University. Plasma Physics Laboratory.

关键词: Heating;    70 Plasma Physics And Fusion Technology;    43 Particle Accelerators;    Cyclotrons;    Faraday Cups;   

DOI  :  10.2172/827927
RP-ID  :  PPPL-3947
RP-ID  :  AC02-76CH03073
RP-ID  :  827927

美国|英语

来源: UNT Digital Library

【 摘 要 】

A thin foil Faraday cup array is being built to measure the loss of 3.5 MeV alpha particles and MeV ion cyclotron heating (ICH) tail ions on JET. It will consist of nine detectors spread over five different poloidal locations and three radial positions. They will measure the poloidal distribution and radial scrape off of the losses. The detectors will be comprised of four layers of thin (2.5 micron) Ni foil, giving some resolution of the lost particle energy distribution as different ranges of energies will stop in different layers of the detector. One detector will utilize eight thinner (1.0 micron) foils to obtain a better resolved energy distribution. These detectors will accept particles incident up to 45{sup o} from the normal to the foils.