Active spectroscopic measurements using the ITER diagnostic system
- ITER Organization, 13067 St. Paul-lez-Durance Cedex (France)
- Fusion for Energy, 08019 Barcelona (Spain)
- US ITER Project Office, Oak Ridge, Tennessee 37830 (United States)
- Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)
- Russian Research Center ''Kurchatov Institute'', Moscow 123182 (Russian Federation)
Active (beam-based) spectroscopic measurements are intended to provide a number of crucial parameters for the ITER device being built in Cadarache, France. These measurements include the determination of impurity ion temperatures, absolute densities, and velocity profiles, as well as the determination of the plasma current density profile. Because ITER will be the first experiment to study long timescale ({approx}1 h) fusion burn plasmas, of particular interest is the ability to study the profile of the thermalized helium ash resulting from the slowing down and confinement of the fusion alphas. These measurements will utilize both the 1 MeV heating neutral beams and a dedicated 100 keV hydrogen diagnostic neutral beam. A number of separate instruments are being designed and built by several of the ITER partners to meet the different spectroscopic measurement needs and to provide the maximum physics information. In this paper, we describe the planned measurements, the intended diagnostic ensemble, and we will discuss specific physics and engineering challenges for these measurements in ITER.
- OSTI ID:
- 22055805
- Journal Information:
- Review of Scientific Instruments, Vol. 81, Issue 10; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
Similar Records
Prospects for charge-exchange-recombination-based measurements on International Thermonuclear Experimental Reactor using a helium diagnostic neutral beam
Neutronics for diagnostics in ITER - Paper 121