OEDGE Modeling of {sup 13}C Deposition in the Inner Divertor of DIII-D. PDF Download

Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download OEDGE Modeling of {sup 13}C Deposition in the Inner Divertor of DIII-D. PDF full book. Access full book title OEDGE Modeling of {sup 13}C Deposition in the Inner Divertor of DIII-D. by S. Allen. Download full books in PDF and EPUB format.

OEDGE Modeling of {sup 13}C Deposition in the Inner Divertor of DIII-D.

OEDGE Modeling of {sup 13}C Deposition in the Inner Divertor of DIII-D. PDF Author: S. Allen
Publisher:
ISBN:
Category :
Languages : en
Pages : 2

Book Description
Use of carbon in tokamaks leads to a major tritium retention issue due to co-deposition. To investigate this process a low power (no beams) L-mode experiment was performed on DIII-D in which {sup 13}CH{sub 4} was puffed into the main vessel through the toroidally-symmetric pumping plenum at the top of lower single-null discharges. Subsequently, the {sup 13}C content of tiles taken from the vessel wall was measured. The interpretive OEDGE code was used to model the results. It was found that the {sup 13}C deposition pattern is controlled by: (a) source strength of {sup 13}C{sup +}, (b) radial location of the {sup 13}C{sup +} source, (c) D{sub {perpendicular}}, (d) M{sub {parallel}}, the scrape-off layer parallel Mach number. Best agreement was found for (a) {approx}50% conversion efficiency {sup 13}CH{sub 4} {yields} {sup 13}C{sup +}, (b) {sup 13}C{sup +} source {approx}3.5 cm outboard of separatrix near {sup 13}CH{sub 4} injection location, (c)D{sub {perpendicular}} {approx} 0.3 m{sup 2}s{sup -1}, (d) M{sub {parallel}} {approx} 0.4 toward inside.
➤