Results 31 to 40 of about 150 (75)

Simulation study of the influence of the outer target geometry on tungsten contamination: Horizontal vs. vertical target

Nuclear Materials and Energy
The core tungsten (W) concentration must be limited to an extremely low level for future fusion reactors. It was found that the effects of E × B drift can lead to a dramatic increase in the core W concentration in our recent work [J.
Hongxin Ding, Jin Guo, Shifeng Mao, Xinglei Ruan, Yuchen Xu, Minyou Ye   +5 more
doaj   +1 more source

DIVIMP Modeling of the Toroidally-Symmetrical Injection of 13CH4 into the Upper SOL of DIII-D [PDF]

, 2004
As part of a study of carbon-tritium co-deposition, we carried out an experiment on DIII-D involving a toroidally symmetric injection of {sup 13}CH{sub 4} at the top of a LSN discharge.
Elder, J. D., Lisgo, S., Wampler, W. R., West, W. P., Whyte, D. G., McLean, A. G., Allen, S. L., Brooks, N. H., Stangeby, P. C., Groth, M., Fenstermacher, M. E., Watkins, J. G., Nagy, A.   +12 more
core  

Modelling of Impurities in the ASDEX Upgrade Divertor II with DIVIMP and B2-Eirene [PDF]

, 2001
Pugno, R., Krieger, K., Coster, D., Laux, M., Yoon, S.   +4 more
openaire   +3 more sources

Drifts effect on the divertor W leakage mechanisms under different dissipative divertor conditions of EAST

Nuclear Fusion
A new drift module has been developed in the DIVIMP code, enabling two-dimensional simulations of tungsten (W) transport in the edge plasma with full drifts included.
Hui Wang, Guoliang Xu, Rui Ding, Hang Si, Guozhang Jia, Hai Xie, Ran Hai, Zhibin Wang, Dahuan Zhu, Rong Yan, Junling Chen   +10 more
doaj   +1 more source

Volframin kulkeutuminen JET:n alhaisen koossapitomoodin plasmojen kuorintakerroksessa [PDF]

, 2019
Tungsten transport is studied in the scrape-off layer of L-mode plasmas in the JET tokamak using the simulation codes EDGE2D-EIRENE and DIVIMP. Predictions by the two codes are compared and differences are analyzed.
Kumpulainen, Henri
core  

Interpretive modeling of tungsten divertor leakage during experiments with neon gas seeding

Nuclear Fusion
Many existing and future tokamaks with tungsten divertors operate, or will operate, with low- Z impurity seeding, but the direct effect of these seeded impurities on tungsten Scrape-off-Layer (SOL) transport has not been explored in detail.
Matthew S. Parsons, Gregory Sinclair, Tyler Abrams, Patrick Byrne, Colin Chrystal, Florian Effenberg, Jeffrey L. Herfindal, Tomas Odstrcil, Robert S. Wilcox   +8 more
doaj   +1 more source

Simulations of tungsten transport in the edge of JET ELMy H-mode plasmas [PDF]

, 2013
Tungsten contamination can significantly impact the performance of future fusion reactors via fuel dilution and radiation in the plasma centre. Therefore, understanding tungsten sputtering and divertor retention is essential for optimising the core ...
Järvinen, A., Beurskens, M., Lönnroth, J., Järvinen, A.; id_orcid, Havlickova, E., Tskhakaya, D., Belo, P., Corrigan, G., Eich, T., Giroud, C., Beurskens, M. N.A., Lehnen, M., Jachmich, S., MoultonGroth, D., Beurskens, M. N. A., JET EFDA Contributors,, Groth, M., Strachan, J., Moulton, D., Wiesen, S.   +19 more
core   +1 more source

Stickstoffimplantation in Wolfram und Migration im Fusionsexperiment ASDEX Upgrade [PDF]

, 2015
The implantation of nitrogen ions into tungsten was studied in laboratory experiments to understand the interaction of nitrogen containing fusion plasmas with tungsten walls. The resulting model of W-N interaction was tested by experiments in the tokamak
Meisl, Gerd Korbinian
core  

Noble gas enrichment studies at JET [PDF]

, 2001
Adequate helium exhaust has been achieved in reactor-relevant ELMy H-mode plasmas in JET performed in the MKII AP and MKII GB divertor geometry. The divertor-characteristic quantities of noble gas compression and enrichment have been experimentally ...
von Hellermann, M., Groth, M., Andrew, P., Fundamenski, E.   +3 more
core   +1 more source

Trade and foreign fishing mediate global marine nutrient supply. [PDF]

Proc Natl Acad Sci U S A, 2022
Nash KL, MacNeil MA, Blanchard JL, Cohen PJ, Farmery AK, Graham NAJ, Thorne-Lyman AL, Watson RA, Hicks CC.   +8 more
europepmc   +1 more source