A compact flexible pellet injector for the TJ-II stellarator

被引：6

作者：

McCarthy, K. J. ^{[1
]}

Combs, S. K. ^{[2
]}

Baylor, L. R. ^{[2
]}

Caughman, J. B. O. ^{[2
]}

Fehling, D. T. ^{[2
]}

Foust, C. R. ^{[2
]}

McGill, J. M. ^{[2
]}

Carmona, J. M. ^{[1
]}

Rasmussen, D. A. ^{[2
]}

机构：

[1] CIEMAT, Lab Nacl Fus, E-28040 Madrid, Spain

[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 10期

关键词：

cryogenics; fusion reactor design; fusion reactor materials; plasma toroidal confinement; refrigeration; stellarators;

D O I：

10.1063/1.2955706

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A compact pellet injector is being built for the TJ-II stellarator. It is an upgraded version of the "pellet injector in a suitcase" developed at Oak Ridge National Laboratory and installed on the Madison Symmetric Torus where it continues to be used in many plasma experiments. The design aim is to provide maximum flexibility at minimal cost, while allowing for future upgrades. It is a four-barrel system equipped with a cryogenic refrigerator for in situ hydrogen pellet formation, a combined mechanical punch/propellant valve system, pellet diagnostics, and an injection line, destined for use as an active diagnostic and for fueling. In order to fulfill both objectives it will be sufficiently flexible to permit pellets, with diameters from 0.4 to 1 mm, to be fabricated and accelerated to velocities from 150 to similar to 1000 m s(-1).

引用

页数：3

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