Radiative plasma by impurity seeding in W-shaped pumped divertor experiment of JT-60U

被引：15

作者：

Itami, K ^{[1
]}

Hosogane, N ^{[1
]}

Konoshima, S ^{[1
]}

Sakurai, S ^{[1
]}

Asakura, N ^{[1
]}

Higashijima, S ^{[1
]}

Sakasai, A ^{[1
]}

Tamai, H ^{[1
]}

Shimada, M ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 3110193, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 1999年 / 266卷

关键词：

JT-60; radiative divertor; MARFE; pumped divertor;

D O I：

10.1016/S0022-3115(98)00855-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Modification of the divertor to a W-shaped pumped divertor and installation of pumping has enabled demonstration of the 'puff and pump' effect in injected neon, albeit the pumping speed was modest (similar to 14 m(3)/s). It was demonstrated in ELMy H-mode plasmas with P-NB less than or equal to 25 MW that neon seeding and pumping was useful to control the radiation profiles in the main and divertor plasmas, while the large radiation loss from the divertor MARFE was sustained. It was suggested that the neon enrichment in the divertor plasma, which was enhanced by the main D-2 puff, effectively improved the pumping efficiency of neon. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1097 / 1102

页数：6

共 6 条

[1] Invariance of divertor retention on external particle flow in detached ASDEX Upgrade discharges [J].

Bosch, HS ;

Dux, R ;

Haas, G ;

Kallenbach, A ;

Kaufmann, M ;

Lackner, K ;

Mertens, V ;

Murmann, HD ;

Poschenrieder, W ;

Salzmann, H ;

Schweinzer, J ;

Suttrop, W ;

Weinlich, M .

PHYSICAL REVIEW LETTERS, 1996, 76 (14) :2499-2502

[2] RADIATIVE DIVERTOR IN JT-60U [J].

HOSOGANE, N ;

ITAMI, K ;

ASAKURA, N ;

KUBO, H ;

SHIMIZU, K ;

TSUJI, S ;

SHIMADA, M .

JOURNAL OF NUCLEAR MATERIALS, 1995, 220 :420-424

[3]

HOSOGANE N, 1997, 1996 FUS EN C MONTR, V3, P555

[4]

ITAMI K, 1997, FUSION ENERGY 1996, V1, P385

[5]

ITAMI K, 1995, PLASMA PHYS CON S11A, V36, pA117

[6] Direct measurement of divertor exhaust neon enrichment in DIII-D [J].

Schaffer, MJ ;

Wade, MR ;

Maingi, R ;

MonierGarbet, P ;

West, WP ;

Whyte, DG ;

Wood, RD ;

Mahdavi, MA .

JOURNAL OF NUCLEAR MATERIALS, 1997, 241 :585-589

← 1 →