Energy Research Abstracts

Energy Research Abstracts
Author:
Publisher:
Total Pages: 762
Release: 1993
Genre: Power resources
ISBN:

Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.

Impurity Transport in Ohmic- and Neutral-beam-heated TFTR Discharges

Impurity Transport in Ohmic- and Neutral-beam-heated TFTR Discharges
Author:
Publisher:
Total Pages:
Release: 1986
Genre:
ISBN:

Impurity transport has been studied in ohmic- and neutral-beam-heated TFTR discharges by observation and numerical modeling of time evolutions of emissions from germanium injected using the laser-blowoff method. VUV spectral lines, the total radiated power, and soft x-ray intensities are compared with code predictions in which the impurity flux is assumed to have diffusive and convective terms. In plasmas with I/sub p/=1.4 MA and anti n/sub e/approx. = 2.5 x 1013 cm−3, little difference in transport between ohmic and beam-heated discharges is observed. At I/sub p/=0.7 MA and anti n/sub e/approx. = 1.0 x 1013 cm−3, a three-fold increase in the diffusion coefficient is found during beam heating.