High-Efficiency Plasma Refuelling by Pellet Injection from the Magnetic High-Field Side into ASDEX Upgrade

High-efficiency refuelling of ELMy {ital H}-mode tokamak discharges with solid deuterium pellets injected from the magnetic high-field side is demonstrated. Compared to standard low-field side injection, the fuelling efficiency was enhanced by a factor of 4, the pellet penetration more than 2 times....

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Veröffentlicht in:	Physical Review Letters 1997-08, Vol.79 (8), p.1487-1490
Hauptverfasser:	Lang, P. T., Büchl, K., Kaufmann, M., Lang, R. S., Mertens, V., Müller, H. W., Neuhauser, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION ASDEX TOKAMAK DEUTERIUM H-MODE PLASMA CONFINEMENT MAGNETIC FIELDS PELLET INJECTION PLASMA
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container_end_page	1490
container_issue	8
container_start_page	1487
container_title	Physical Review Letters
container_volume	79
creator	Lang, P. T. Büchl, K. Kaufmann, M. Lang, R. S. Mertens, V. Müller, H. W. Neuhauser, J.
description	High-efficiency refuelling of ELMy {ital H}-mode tokamak discharges with solid deuterium pellets injected from the magnetic high-field side is demonstrated. Compared to standard low-field side injection, the fuelling efficiency was enhanced by a factor of 4, the pellet penetration more than 2 times. This experimental result can be qualitatively explained by the magnetic force pushing a diamagnetic plasma cloud towards lower magnetic field, causing rapid particle loss for shallow low-field side injection, but enhancing fuelling efficiency and pellet penetration for high-field side injection. {copyright} {ital 1997} {ital The American Physical Society}
doi_str_mv	10.1103/PhysRevLett.79.1487
format	Article
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This experimental result can be qualitatively explained by the magnetic force pushing a diamagnetic plasma cloud towards lower magnetic field, causing rapid particle loss for shallow low-field side injection, but enhancing fuelling efficiency and pellet penetration for high-field side injection. {copyright} {ital 1997} {ital The American Physical Society}</description><subject>70 PLASMA PHYSICS AND FUSION</subject><subject>ASDEX TOKAMAK</subject><subject>DEUTERIUM</subject><subject>H-MODE PLASMA CONFINEMENT</subject><subject>MAGNETIC FIELDS</subject><subject>PELLET INJECTION</subject><subject>PLASMA</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNpNkFFLwzAUhYMoOKe_wJf4Azpzm7ZJH8fc3GDi2Bz4FtL0psvo2tFEYf_ezvngw-VcDofD4SPkEdgIgPHn1e7k1_i9xBBGIh9BIsUVGQATeSQAkmsyYIxDlDMmbsmd93vGGMSZHJD93FW7aGqtMw4bc6KrWvuDpmu0X1jXrqlo0Zv9i4Eumj2a4NqG2q490LBD-qarBoMz9Ldn5rAu6caVSF0TWjrevEw_6fZYdbrEe3Jjde3x4U-HZDubfkzm0fL9dTEZLyPDYx4iTOMSC2MZFGnMi6JMJFq0rMwzSISUuTYyBiiN1DIuEBMdp4A8Y9BfzEo-JE-X3tYHp7xxAc3OtE3Tb1cplxmIPsMvGdO13ndo1bFzB92dFDB1Rqr-IVUiV2ek_Adgwm00</recordid><startdate>19970801</startdate><enddate>19970801</enddate><creator>Lang, P. 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subjects	70 PLASMA PHYSICS AND FUSION ASDEX TOKAMAK DEUTERIUM H-MODE PLASMA CONFINEMENT MAGNETIC FIELDS PELLET INJECTION PLASMA
title	High-Efficiency Plasma Refuelling by Pellet Injection from the Magnetic High-Field Side into ASDEX Upgrade
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