A compact flexible pellet injector for the TJ-II stellarator

K. J. McCarthy; S. K. Combs; L. R. Baylor; J. B.O. Caughman; D. T. Fehling; C. R. Foust; J. M. McGill; J. M. Carmona; D. A. Rasmussen

doi:10.1063/1.2955706

A compact flexible pellet injector for the TJ-II stellarator

K. J. McCarthy, S. K. Combs, L. R. Baylor, J. B.O. Caughman, D. T. Fehling, C. R. Foust, J. M. McGill, J. M. Carmona, D. A. Rasmussen

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

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 ∼1000 m s-1.

Original language	English
Article number	10F321
Journal	Review of Scientific Instruments
Volume	79
Issue number	10
DOIs	https://doi.org/10.1063/1.2955706
State	Published - 2008

Funding

This work was partially funded by the Spanish Ministerio de Educación y Ciencia Project No. ENE2007-64159.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1063/1.2955706

Cite this

@article{9cbb17f8ebb64b619b3fa09b1ae0916d,

title = "A compact flexible pellet injector for the TJ-II stellarator",

abstract = "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 ∼1000 m s-1.",

author = "McCarthy, {K. J.} and Combs, {S. K.} and Baylor, {L. R.} and Caughman, {J. B.O.} and Fehling, {D. T.} and Foust, {C. R.} and McGill, {J. M.} and Carmona, {J. M.} and Rasmussen, {D. A.}",

year = "2008",

doi = "10.1063/1.2955706",

language = "English",

volume = "79",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "10",

}

TY - JOUR

T1 - A compact flexible pellet injector for the TJ-II stellarator

AU - McCarthy, K. J.

AU - Combs, S. K.

AU - Baylor, L. R.

AU - Caughman, J. B.O.

AU - Fehling, D. T.

AU - Foust, C. R.

AU - McGill, J. M.

AU - Carmona, J. M.

AU - Rasmussen, D. A.

PY - 2008

Y1 - 2008

N2 - 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 ∼1000 m s-1.

AB - 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 ∼1000 m s-1.

UR - http://www.scopus.com/inward/record.url?scp=55349145670&partnerID=8YFLogxK

U2 - 10.1063/1.2955706

DO - 10.1063/1.2955706

M3 - Article

AN - SCOPUS:55349145670

SN - 0034-6748

VL - 79

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 10

M1 - 10F321

ER -

A compact flexible pellet injector for the TJ-II stellarator

Abstract

Funding

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this