Published July 1992 | Version v1
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Expression for the thermal H-mode energy confinement time under ELM-free conditions

  • 1. Max-Planck-Institut fuer Plasmaphysik, Garching (Germany)
  • 2. General Atomics, San Diego, CA (United States)
  • 3. Princeton Plasma Physics Lab., NJ (United States)

Description

The design of future tokamaks, which are supposed to reach ignition with the H-mode, requires a reliable scaling expression for the H-mode energy confinement time. In the present work, an H-mode scaling expression for the thermal plasma energy confinement time has been developed by combining data from four existing divertor tokamaks, ASDEX, DIII-D, JET and PBX-M. The plasma conditions, which were as similar as possible to ensure a coherent set of data, were ELM-free deuterium discharges heated by deuterium neutral beam injection. By combining four tokamaks, the parametric dependence of the thermal energy confinement on the main plasma parameters, including the three main geometrical variables, was determined. (orig./WL)

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Additional details

Publishing Information

Imprint Pagination
28 p.
Report number
IPP--4/257

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
24031483
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
CONFINEMENT TIME; DIVERTORS; H-MODE PLASMA CONFINEMENT; NEUTRAL ATOM BEAM INJECTION; TOKAMAK DEVICES
Descriptors DEC
BEAM INJECTION; CLOSED PLASMA DEVICES; CONFINEMENT; PLASMA CONFINEMENT; THERMONUCLEAR DEVICES

Optional Information