Scientific Commons: J. Baldzuhn

island divertor operation and the modelling of the results with the EMC3/EIRENE code- confinement issues with emphasis on the differences to tokamaks (isotope effect, density scaling, lack of profile...

INSTITUTE OF PHYSICS PUBLISHING PLASMA PHYSICS AND CONTROLLED FUSION Plasma Phys. Control. Fusion 45 (2003) A285–A308 PII: S0741-3335(03)67725-0 Experiments close to the beta-limit in W7-AS (2007)

A Weller, J Geiger, A Werner, M C Zarnstorff, E Sall, J Baldzuhn, ...

A major objective of the experimental program in the last phase of the W7-AS stellarator was to explore and demonstrate the high-β performance of advanced stellarators. MHD-quiescent discharges at...

Review of the acceptance tests of the W7-X superconducting magnets (2007)

Ehmler, H., Baldzuhn, J., Genini, L., Heyn, K., Sborchia, C., Schild, T., ...

Experience gained during manufacture and testing of the W7-X superconducting magnets (2007)

Wanner, M., Sborchia, C., Riße, K., Viebke, H., Baldzuhn, J.

Transport of Impurity Ions in the Wendelstein 7-AS Stellarator Plasma (2006)

Burhenn,R., Baldzuhn,J., Beidler,C., Brakel,R., Ehmler,H., Giannone,L., ...

Transport of Impurity Ions in the Wendelstein 7-AS Stellarator Plasma (2006)

Burhenn, R., Baldzuhn, J., Beidler, C., Brakel, R., Ehmler, H., Giannone, L., ...

Dynamics of poloidal flows and turbulence at the H-mode transition in W7-AS (2006)

Hirsch, M., Baldzuhn, J., Ehmler, H., Holzhauer, E., Wagner, F.

H-mode operational conditions and plasma edge rotation in W7-AS (2006)

Hirsch, M., Baldzuhn, J., Ehmler, H., Grigull, P., Holzhauer, E., Wagner, F., ...

Progress in the Design, Manufacture and Testing of the W7-X Superconducting Magnets (2006)

Sborchia, C., Baldzuhn, J., Feist, J. H., Risse, K., Rummel, T., Viebke, H., ...

Recent Results of the Cold Tests Performed on the Stellarator W7-X Coils (2006)

Baldzuhn, J., Ehmler, H., Hoelting, A., Sborchia, C., Hertel, K., Genini, L., ...

Comperative Analysis of Impulse and Impedance Tests to Detect Short Circuits within the W7-X Magnets (2006)

Ehmler, H., Fillunger, H., Baldzuhn, J., Maix, R. K., Jeckle, A., Parodi, S., ...

Paschen Testing on W7-X Coils and Components in the BNN Test Facility (2006)

Scheller, H., Langenberg, H. P., Kühnberg, M., Baldzuhn, J., Petersen-Zarling, B., Gustke, D., ...

W7-AS: One step of the Wendelstein stellarator line (2005)

Wagner,F., Baeumel,S., Baldzuhn,J., Basse,N., Brakel,R., Burhenn,R., ...

Physics, Technologies and Status of the Wendelstein 7-X Device (2005)

Wagner,F., Andreeva,T., Baldzuhn,J., Benndorf,A., Bolt,H., Boscary,J., ...

W7-AS: One step of the Wendelstein stellarator line (2005)

Wagner, F., Baeumel, S., Baldzuhn, J., Basse, N., Brakel, R., Burhenn, R., ...

Physics, Technologies and Status of the Wendelstein 7-X Device (2005)

Wagner, F., Andreeva, T., Baldzuhn, J., Benndorf, A., Bolt, H., Boscary, J., ...

Physics, technologies, and status of the Wendelstein 7-X device. (2005)

Wagner, F., Andreeva, T., Baldzuhn, J., Benndorf, A., Bolt, H., Boscary, J., ...

20th IAEA Fusion Energy Conf., Vilamoura, P, November 1-6, 2004

Penetration Studies for Deuterium Pellets in Wendelstein 7-AS (2004)

Baldzuhn,J., Baylor,L. R., Lyon,J. F.

Dynamics of poloidal flows and turbulence at the H-mode transition in W7-AS (2004)

Hirsch,M., Ehmler,H., Baldzuhn,J., Holzhauer,E., Wagner,F.

Development of cooled UV, visible and IR windows for quasicontinuous operation of the W7-X stellarator (2004)

König,R., Ogorodnikova,O., Hildebrandt,D., Grosser,K., Sehren,C. Von, Baldzuhn,J., ...

Charge exchange spectroscopy by Fabry–Pérot spectrometer in W7-AS (2004)

Yoshinuma,M., Ida,K., Baldzuhn,J.

Impurity Transport Studies in the Wendelstein 7-AS Stellarator (2004)

Burhenn,R., Baldzuhn,J., Brakel,R., Ehmler,H., Giannone,L., Grigull,P., ...

Penetration Studies for Deuterium Pellets in Wendelstein 7-AS (2004)

Baldzuhn, J., Baylor, L. R., Lyon, J. F.

Dynamics of poloidal flows and turbulence at the H-mode transition in W7-AS (2004)

Hirsch, M., Ehmler, H., Baldzuhn, J., Holzhauer, E., Wagner, F.

Development of cooled UV, visible and IR windows for quasicontinuous operation of the W7-X stellarator (2004)

König, R., Ogorodnikova, O., Hildebrandt, D., Grosser, K., Sehren, C. Von, Baldzuhn, J., ...

Charge exchange spectroscopy by Fabry–Pérot spectrometer in W7-AS (2004)

Yoshinuma, M., Ida, K., Baldzuhn, J.

Impurity Transport Studies in the Wendelstein 7-AS Stellarator (2004)

Burhenn, R., Baldzuhn, J., Brakel, R., Ehmler, H., Giannone, L., Grigull, P., ...

Charge exchange spectroscopy by Fabry-Perot (2004)

Yoshinuma, M., Ida, K., Baldzuhn, J.

Development of Cooled UV, Visible and IR Windows for Quasicontinuous Operation of the W7-X Stellarator (2004)

Koenig, R., Ogorodnikova, O., Hildebrandt, D., Grosser, K., Sehren, C. Von, Baldzuhn, J., ...

Physics, technologies, and status of the Wendelstein 7-X device. (2004)

Wagner, F., Andreeva, T., Baldzuhn, J., Benndorf, A., Bolt, H., Boscary, J., ...

20th IAEA Fusion Energy Conf., Vilamoura, P, November 1-6, 2004

Bolometer tomography at the density limit of the HDH mode in the W7-AS stellarator (2003)

Giannone,L., Brakel,R., Burhenn,R., Ehmler,H., Feng,Y., Grigull,P., ...

The installation of divertor plates in the W7-AS stellarator has allowed attainment of a high energy confinement regime at high density, where the radiation profiles reached steady state. In this...

Divertor operation in stellarators: results from W7-AS and implications for future devices (2003)

Grigull,P., McCormick,K., Renner,H., Masuzaki,S., König,R., Baldzuhn,J., ...

The research on divertors for stellarators is at the beginning. Extensive studies are being prepared on large helical device (LHD) and W7-X. W7-AS is now being operated with an open island divertor...

Investigation of the beta-limit in the W7-AS stellarator (2003)

Weller,A., Geiger,J., Zarnstorff,M., Sallander,E., Klose,S., Werner,A., ...

Investigations of the performance and stability of high-beta plasmas have been restarted in W7-AS utilizing higher heating powers and the new divertor system. The combination of beneficial effects...

Major results from Wendelstein 7-AS stellarator (2003)

Wagner,F., Burhenn,R., Gadelmeier,F., Geiger,J., Hirsch,M., Laqua,H. P., ...

W7-AS operates with an island divertor, which utilises the natural edge islands of the low-shear stellarator configuration to divert the plasma. High densities (up to 4×1020m-3) and partly detached...

Effects of the New Island Divertor on the Plasma Performance in the W7-AS Stellarator (2003)

Grigull,P., McCormick,K., Baldzuhn,J., Burhenn,R., Brakel,R., Ehmler,H., ...

The island divertor in the W7-AS stellarator enables access to a new NBI-heated, high density operating regime with promising confinement properties. This regime — the High Density H-Mode —...

Experiments close to the beta-limit in W7-AS (2003)

Weller,A., Geiger,J., Werner,A., Zarnstorff,M. C., Nührenberg,C., Sallander,E., ...

A major objective of the experimental program in the last phase of the W7-AS stellarator was to explore and demonstrate the high-β performance of advanced stellarators. MHD-quiescent discharges at...

The Wendelstein W7-AS High Density H-Mode, A Mode for the Future? (2003)

McCormick,K., Burhenn,R., Grigull,P., Baldzuhn,J., Bäumel,S., Brakel,R., ...

Improved Performance of the W7-AS Stellarator with the New Island Divertor (2003)

Brakel,R., Grigull,P., McCormick,K., Burhenn,R., Feng,Y., Sardei,F., ...

The island divertor concept has successfully been realized at W7-AS. The divertor gives access to a new NBI-heated high density regime with densities up to 4×10²⁰m-3 and energy confinement well...

Major results from Wendelstein 7-AS stellarator (2003)

Wagner,F., Burhenn,R., Gadelmeier,F., Geiger,J., Hirsch,M., Laqua,H. P., ...

Bolometer tomography at the density limit of the HDH mode in the W7-AS stellarator (2003)

Giannone, L., Brakel, R., Burhenn, R., Ehmler, H., Feng, Y., Grigull, P., ...

The installation of divertor plates in the W7-AS stellarator has allowed attainment of a high energy confinement regime at high density, where the radiation profiles reached steady state. In this...

Divertor operation in stellarators: results from W7-AS and implications for future devices (2003)

Grigull, P., McCormick, K., Renner, H., Masuzaki, S., König, R., Baldzuhn, J., ...

The research on divertors for stellarators is at the beginning. Extensive studies are being prepared on large helical device (LHD) and W7-X. W7-AS is now being operated with an open island divertor...

Investigation of the beta-limit in the W7-AS stellarator (2003)

Weller, A., Geiger, J., Zarnstorff, M., Sallander, E., Klose, S., Werner, A., ...

Investigations of the performance and stability of high-beta plasmas have been restarted in W7-AS utilizing higher heating powers and the new divertor system. The combination of beneficial effects...

Major results from Wendelstein 7-AS stellarator (2003)

Wagner, F., Burhenn, R., Gadelmeier, F., Geiger, J., Hirsch, M., Laqua, H. P., ...

W7-AS operates with an island divertor, which utilises the natural edge islands of the low-shear stellarator configuration to divert the plasma. High densities (up to 4×1020m-3) and partly detached...

Effects of the New Island Divertor on the Plasma Performance in the W7-AS Stellarator (2003)

Grigull, P., McCormick, K., Baldzuhn, J., Burhenn, R., Brakel, R., Ehmler, H., ...

The island divertor in the W7-AS stellarator enables access to a new NBI-heated, high density operating regime with promising confinement properties. This regime — the High Density H-Mode —...

Experiments close to the beta-limit in W7-AS (2003)

Weller, A., Geiger, J., Werner, A., Zarnstorff, M. C., Nührenberg, C., Sallander, E., ...

A major objective of the experimental program in the last phase of the W7-AS stellarator was to explore and demonstrate the high-β performance of advanced stellarators. MHD-quiescent discharges at...

The Wendelstein W7-AS High Density H-Mode, A Mode for the Future? (2003)

McCormick, K., Burhenn, R., Grigull, P., Baldzuhn, J., Bäumel, S., Brakel, R., ...

Improved Performance of the W7-AS Stellarator with the New Island Divertor (2003)

Brakel, R., Grigull, P., McCormick, K., Burhenn, R., Feng, Y., Sardei, F., ...

The island divertor concept has successfully been realized at W7-AS. The divertor gives access to a new NBI-heated high density regime with densities up to 4×10²⁰m-3 and energy confinement well...

Charge-Exchange Spectroscopy at the W7-AS Stellarator Employing a High-Energy Li Beam (2003)

Ehmler, H., Baldzuhn, J., McCormick, K., Kreter, A., Klinger, T.

Experimental Check of Neoclassical Preditions for the Radial Electric Field in a Stellarator (2003)

Ehmler, H., Turkin, Y., Beidler, C.D., Maaßberg, H., Dinklage, A., Baldzuhn, J., ...

Characterisation of turbulence in L- and ELM-free H-Mode Wendelstein 7-AS plasmas (2003)

Basse, N.P., Zoletnik, S., Antar, G.Y., Baldzuhn, J., Werner, A.

Experiments on Gas Jet in the Wendelstein 7-AS Stellarator (2003)

Yao, L., Baldzuhn, J.

Charge-exchange spectroscopy at the W7-AS stellarator employing a high-energy Li beam (2003)

Ehmler, J. H., Baldzuhn, J., McCormick, K., Kreter, A., Klinger, T.

This version is available at the following Publisher URL: http://stacks.iop.org/0741-3335/45/53

A new quasi-stationary, very high density plasma regime on the W7-AS stellarator (2002)

Jaenicke,R., Bäumel,S., Baldzuhn,J., Brakel,R., Burhenn,R., Ehmler,H., ...

Stellarators have the intrinsic property of steady state operation. However, on present-day stellarators the pulse length is usually not only limited due to technical reasons, but also by physical...

Low- and high-mode separation of short wavelength turbulence in dithering Wendelstein 7-AS plasmas (2002)

Basse,N. P., Zoletnik,S., Saffman,M., Baldzuhn,J., Endler,M., Hirsch,M., ...

In this article measurements of small scale electron density fluctuations in dithering high confinement (H)-mode plasmas obtained by collective scattering of infrared light are presented. A scan of...

Comparative study of intrinsic edge impurities in the W7-AS stellarator during high confinement discharges (2002)

Ehmler,H., Burhenn,R., Baldzuhn,J., Dinklage,A., Giannone,L., Hartmann,D., ...

Radial electric field modification by perpendicular neutral beam injection in the stellarator W7-AS (2002)

Baldzuhn,J., Werner,A., Wobig,H.

Comparative study of intrinsic edge impurities in the W7-AS stellarator during high confinement discharges (2002)

Ehmler,H., Burhenn,R., Baldzuhn,J., Dinklage,A., Giannone,L., Hartmann,D., ...

Bolometer tomography and density limit of the high density H-mode in the W7-AS Stellarator (2002)

Giannone,L., McCormick,K., Baldzuhn,J., Brakel,R., Burhenn,R., Ehmler,H., ...

Overview on recent W7-AS results (2002)

Jaenicke,R., Bäumel,S., Baldzuhn,J., Brakel,R., Burhenn,R., Ehmler,H., ...

Performance and stability of high-β discharges in W7-AS (2002)

Weller,A., Geiger,J., Werner,A., Klose,S., Baldzuhn,J., Brakel,R., ...

Optimised Confinement discharges with high ion temperatures after installation of the island divertor in W7-AS (2002)

Kreter,A., Baldzuhn,J., Ehmler,H., Hirsch,M., Kick,M., Kislyakov,A., ...

Recent results from W7-AS with the new radial NBI injector (2002)

Rust,N., Baldzuhn,J., Kick,M., Werner,A., Speth,E.

Low- and high-mode separation of short wavelength turbulence in dithering Wendelstein 7-AS plasmas (2002)

Basse, N. P., Zoletnik, S., Saffman, M., Baldzuhn, J., Endler, M., Hirsch, M., ...

In this article measurements of small scale electron density fluctuations in dithering high confinement (H)-mode plasmas obtained by collective scattering of infrared light are presented. A scan of...

A new quasi-stationary, very high density plasma regime on the W7-AS stellarator (2002)

Jaenicke, R., Bäumel, S., Baldzuhn, J., Brakel, R., Burhenn, R., Ehmler, H., ...

Stellarators have the intrinsic property of steady state operation. However, on present-day stellarators the pulse length is usually not only limited due to technical reasons, but also by physical...

Comparative study of intrinsic edge impurities in the W7-AS stellarator during high confinement discharges (2002)

Ehmler, H., Burhenn, R., Baldzuhn, J., Dinklage, A., Giannone, L., Hartmann, D., ...

Radial electric field modification by perpendicular neutral beam injection in the stellarator W7-AS (2002)

Baldzuhn, J., Werner, A., Wobig, H.

Comparative study of intrinsic edge impurities in the W7-AS stellarator during high confinement discharges (2002)

Ehmler, H., Burhenn, R., Baldzuhn, J., Dinklage, A., Giannone, L., Hartmann, D., ...

Bolometer tomography and density limit of the high density H-mode in the W7-AS Stellarator (2002)

Giannone, L., McCormick, K., Baldzuhn, J., Brakel, R., Burhenn, R., Ehmler, H., ...

Overview on recent W7-AS results (2002)

Jaenicke, R., Bäumel, S., Baldzuhn, J., Brakel, R., Burhenn, R., Ehmler, H., ...

Performance and stability of high-β discharges in W7-AS (2002)

Weller, A., Geiger, J., Werner, A., Klose, S., Baldzuhn, J., Brakel, R., ...