Design and performance of NSTX movable GDC probe

H. W. Kugel; R. Maingi; M. Bell; W. Blanchard; D. Gates; R. Gernhardt; T. Holoman; G. Labik; T. Provost; A. L. Roquemorel; P. Sichta

doi:10.1109/FUSION.2007.4337871

Design and performance of NSTX movable GDC probe

H. W. Kugel, R. Maingi, M. Bell, W. Blanchard, D. Gates, R. Gernhardt, T. Holoman, G. Labik, T. Provost, A. L. Roquemorel, P. Sichta

PPPL Advanced Projects

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The NSTX GDC system has been improved by replacing one of the two fixed anodes with a Movable GDC Probe (MGP) anode that can be inserted 1.2 m to about midway between the inner and outer vessel walls. The purpose was to provide more spatially uniform HeGDC for improving discharge stability and reliability. The MGP has been used reliably between every discharge during the last two NSTX experimental campaigns. It has also been used to apply HeGDC assisted boronization, and more recently, HeGDC assisted lithiumization. The MGP has contributed to improved NSTX performance during long pulse and H-mode discharges, and enabled a faster discharge repetition rate.

Original language	English (US)
Title of host publication	Proceedings of the 22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07
DOIs	https://doi.org/10.1109/FUSION.2007.4337871
State	Published - 2007
Event	22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07 - Albuquerque, NM, United States Duration: Jun 17 2007 → Jun 21 2007

Publication series

Name	Proceedings - Symposium on Fusion Engineering

Conference

Conference	22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07
Country/Territory	United States
City	Albuquerque, NM
Period	6/17/07 → 6/21/07

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Nuclear Energy and Engineering

Keywords

Component
Glow discharge cleaning
Impurity control
Tokamaks
Wall conditioning

Access to Document

10.1109/FUSION.2007.4337871

Cite this

Kugel, H. W., Maingi, R., Bell, M., Blanchard, W., Gates, D., Gernhardt, R., Holoman, T., Labik, G., Provost, T., Roquemorel, A. L., & Sichta, P. (2007). Design and performance of NSTX movable GDC probe. In Proceedings of the 22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07 Article 4337871 (Proceedings - Symposium on Fusion Engineering). https://doi.org/10.1109/FUSION.2007.4337871

@inproceedings{064b0cb9b7b44ccc8611ce66f1e32949,

title = "Design and performance of NSTX movable GDC probe",

abstract = "The NSTX GDC system has been improved by replacing one of the two fixed anodes with a Movable GDC Probe (MGP) anode that can be inserted 1.2 m to about midway between the inner and outer vessel walls. The purpose was to provide more spatially uniform HeGDC for improving discharge stability and reliability. The MGP has been used reliably between every discharge during the last two NSTX experimental campaigns. It has also been used to apply HeGDC assisted boronization, and more recently, HeGDC assisted lithiumization. The MGP has contributed to improved NSTX performance during long pulse and H-mode discharges, and enabled a faster discharge repetition rate.",

keywords = "Component, Glow discharge cleaning, Impurity control, Tokamaks, Wall conditioning",

author = "Kugel, \{H. W.\} and R. Maingi and M. Bell and W. Blanchard and D. Gates and R. Gernhardt and T. Holoman and G. Labik and T. Provost and Roquemorel, \{A. L.\} and P. Sichta",

year = "2007",

doi = "10.1109/FUSION.2007.4337871",

language = "English (US)",

isbn = "1424411947",

series = "Proceedings - Symposium on Fusion Engineering",

booktitle = "Proceedings of the 22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07",

note = "22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07 ; Conference date: 17-06-2007 Through 21-06-2007",

}

Kugel, HW, Maingi, R, Bell, M, Blanchard, W, Gates, D, Gernhardt, R, Holoman, T, Labik, G, Provost, T, Roquemorel, AL & Sichta, P 2007, Design and performance of NSTX movable GDC probe. in Proceedings of the 22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07., 4337871, Proceedings - Symposium on Fusion Engineering, 22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07, Albuquerque, NM, United States, 6/17/07. https://doi.org/10.1109/FUSION.2007.4337871

TY - GEN

T1 - Design and performance of NSTX movable GDC probe

AU - Kugel, H. W.

AU - Maingi, R.

AU - Bell, M.

AU - Blanchard, W.

AU - Gates, D.

AU - Gernhardt, R.

AU - Holoman, T.

AU - Labik, G.

AU - Provost, T.

AU - Roquemorel, A. L.

AU - Sichta, P.

PY - 2007

Y1 - 2007

N2 - The NSTX GDC system has been improved by replacing one of the two fixed anodes with a Movable GDC Probe (MGP) anode that can be inserted 1.2 m to about midway between the inner and outer vessel walls. The purpose was to provide more spatially uniform HeGDC for improving discharge stability and reliability. The MGP has been used reliably between every discharge during the last two NSTX experimental campaigns. It has also been used to apply HeGDC assisted boronization, and more recently, HeGDC assisted lithiumization. The MGP has contributed to improved NSTX performance during long pulse and H-mode discharges, and enabled a faster discharge repetition rate.

AB - The NSTX GDC system has been improved by replacing one of the two fixed anodes with a Movable GDC Probe (MGP) anode that can be inserted 1.2 m to about midway between the inner and outer vessel walls. The purpose was to provide more spatially uniform HeGDC for improving discharge stability and reliability. The MGP has been used reliably between every discharge during the last two NSTX experimental campaigns. It has also been used to apply HeGDC assisted boronization, and more recently, HeGDC assisted lithiumization. The MGP has contributed to improved NSTX performance during long pulse and H-mode discharges, and enabled a faster discharge repetition rate.

KW - Component

KW - Glow discharge cleaning

KW - Impurity control

KW - Tokamaks

KW - Wall conditioning

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U2 - 10.1109/FUSION.2007.4337871

DO - 10.1109/FUSION.2007.4337871

M3 - Conference contribution

AN - SCOPUS:47749155644

SN - 1424411947

SN - 9781424411948

T3 - Proceedings - Symposium on Fusion Engineering

BT - Proceedings of the 22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07

T2 - 22nd IEEE/NPSS Symposium on Fusion Engineering - SOFE 07

Y2 - 17 June 2007 through 21 June 2007

ER -

Design and performance of NSTX movable GDC probe

Abstract

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All Science Journal Classification (ASJC) codes

Keywords

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