@misc{oai:repo.qst.go.jp:00072774,
 author = {Rubel, M. and Widdowson, A. and Grzonka, J. and Moon, Sunwoo and Petersson, P. and Fortuna-Zaleśna, E. and Baron-Wiechec, A. and Ashikawa, N. and Asakura, Nobuyuki and Hatano, Y. and Isobe, Kanetsugu and Kurotaki, Hironori and Masuzaki, S. and Oya, Y. and Oyaizu, Makoto and Tokitani, M. and Contributors, JET and 朝倉 伸幸 and 磯部 兼嗣 and 黒滝 宏紀 and 小柳津 誠},
 month = {Sep},
 note = {Operation of the JET tokamak with beryllium and tungsten ITER-like wall provides unique opportunity for detailed studies on dust generation: quantity, morphology, location, etc. The programme carried out in response to ITER needs for safety assessment comprises: (i) remotely controlled vacuum cleaning of the divertor; (ii) local sampling of loosely bound matter from plasma-facing components (PFC); (iii) collection of mobilized dust on
various erosion-deposition probes located in the divertor and in the main chamber. Results of comprehensive analyses performed by a number of complementary techniques, e.g. a range of microscopy methods, electron and ion spectroscopy, liquid scintillography and thermal desorption, are summarized by following points: (a) Total amount of dust collected by vacuum cleaning after three campaigns is about 1–1.4 g per campaign (19.1–23.5 h plasma operation), i.e. over 100 times smaller than in JET operated with carbon walls (i.e. in JETC). (b) Two major categories of Be dust are identified: flakes of co-deposits formed on PFC and droplets (2–10 μm in diameter). Small quantifies, below 1 g, of Be droplets and splashes are associated mainly with melting of beryllium limiters. (c) Tungsten dust occurs mainly as partly molten flakes originating from the W-coated tiles., The 13the International Symposium on Fusion Nuclear Technology(ISFNT-13)},
 title = {Dust Generation in Tokamaks: Overview of Beryllium and Tungsten Dust Studies in JET with the ITER-Like Wall},
 year = {2017}
}