Investigation of radiation enhanced sublimation of graphite test-limiters in TEXTORFunded under: EAEC-FUSION 12C
Graphite test-limiters have been used as single main limiters in TEXTOR and exposed to convective heat loads of typically 10-20 MW/m2. Local carbon release has been studied by means of local spectroscopy of CI- and CII-emission lines. Surface temperature distributions were determined by CCD camera measurements in the IR spectral region. It was found that the increase of the local carbon flux was below 15 % when the surface temperature increased locally up to about 1900 C, demonstrating that radiation enhanced carbon emission (RES) is negligible under these conditions. The suppression of RES-emission is discussed in view of present RES models.
Bibliographic Reference: Article: Journal of Nuclear Materials, Vol. 220-222 (1995) pp. 467-471
Record Number: 199510759 / Last updated on: 1995-07-12
Original language: en
Available languages: en