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1. Integration of Vacuum Coupled Diagnostics

Author

G. Janeschitz, George Vayakis, Home Teams, Iter Joint Central Team, A. E. Costley, L. de Kock, T. Steinbacher, H. S. Hurzlmeier, Chris Walker, N. P. Hawkes, R. Barnsley, A. Kislyakov, and P. Edmonds

Subjects
Cryostat, Physics, Tokamak, Spectrometer, business.industry, Computer Science::Neural and Evolutionary Computation, Port (circuit theory), Spectral line, law.invention, Optics, law, Line (geometry), Neutral particle, business, Microwave
Abstract

A special class of ITER diagnostics consists of those which extend the primary or tokamak vacuum outside the cryostat wall. This diagnostic set consists of the x-ray crystal spectrometers (XCS) [1], the vacuum ultra-violet spectrometers (VUV) [2], the neutral particle analysers (NPA) [3] and the low-field-side microwave reflectometers [4]. Two XCS systems are included, a high resolution five radial channel array system (XCS-A) designed to view specific spectral lines for temperature and rotation velocity profiles and a survey instrument package (XCS-S) to monitor a broad spectrum for identifying impurity concentrations. The vacuum vessel rough-out line is also located at this port.

Published
1998
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2. A Radial Neutron Camera Design for ITER with Integral Shielding

Author

J. M. Adams, L. de Kock, F.B. Marcus, D. Bond, T. Elevant, Paola Batistoni, G. Janeschitz, N. P. Hawkes, M. Rapisarda, O.N. Jarvis, P.E. Stott, Michael Loughlin, L. C. Johnson, G.J. Sadler, and N. Watkins

Subjects
inorganic chemicals, Physics, integumentary system, Neutron emission, Astrophysics::High Energy Astrophysical Phenomena, Reference design, technology, industry, and agriculture, Plasma, Neutron radiation, Nuclear physics, Physics::Plasma Physics, Neutron flux, Position (vector), biological sciences, Electromagnetic shielding, lipids (amino acids, peptides, and proteins), Neutron, Nuclear chemistry
Abstract

This paper presents the reference design of the radially viewing horizontal neutron profile monitor for ITER. It incorporates integral neutron shielding, and with full machine integration, should provide control and plasma diagnostic information based on the deduced neutron emission profile. Information can be obtained on total neutron emission (fuel burn-up rate), alpha-particle birth profile, plasma position and the time dependent effects of plasma instabilities such as sawteeth.

Published
1998
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