Plasma diagnostics for the CIT (invited)

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1140099· OSTI ID:6906300

Medley, S S; Young, K M

The primary mission of the Compact Ignition Tokamak (CIT) is to study the physics of alpha-particle heating in an ignited D--T plasma. A burn time of about 10 tau/sub E/ is projected in a divertor configuration with base-line machine design parameters of R = 2.10 m, a = 0.65 m, b = 1.30 m, I/sub p/ = 11 MA, B/sub T/ = 10 T, and 10--20 MW of auxiliary rf heating. Plasma temperatures and density are expected to reach T/sub e/(0)approx.20 keV, T/sub i/(0)approx.30 keV, and n/sub e/(0)approx.1 x 10/sup 21/ m/sup -3/. The combined effects of restricted port access to the plasma, the presence of severe neutron and gamma radiation backgrounds, and the necessity for remote handling of in-cell components create challenging design problems for all of the conventional diagnostics associated with tokamak operations. In addition, new techniques must be developed to diagnose the evolution in space, time, and energy of the confined alpha distribution as well as potential plasma instabilities driven by collective alpha-particle effects. The design effort for CIT diagnostics is presently in the conceptual phase, with activity being focused on the selection of a viable diagnostic set and the identification of essential research and development projects to support this process. A review of these design issues and other aspects impacting the selection of diagnostic techniques for the CIT experiment will be presented.

• Research Organization: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543
• OSTI ID: 6906300
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:8; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CLOSED PLASMA DEVICES
COMPACT IGNITION TOKAMAK
DATA ACQUISITION SYSTEMS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
MAGNET COILS
MAGNETIC FIELDS
PLASMA DIAGNOSTICS
RESEARCH PROGRAMS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS