Major Results from Wendelstein 7-AS Stellarator (2007)
F. Wagner, R. Burhenn, F. Gadelmeier, J. Geiger, M. Hirsch, H. P. Laqua, ...
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...
Island divertor experiments on the Wendelstein 7-AS stellarator (2007)
K. Mccormick, P. Grigull, R. Burhenn, R. Brakel, H. Ehmler, Y. Feng, ...
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...
W7-AS: One step of the Wendelstein stellarator line (2005)
Wagner,F., Baeumel,S., Baldzuhn,J., Basse,N., Brakel,R., Burhenn,R., ...
W7-AS: One step of the Wendelstein stellarator line (2005)
Wagner, F., Baeumel, S., Baldzuhn, J., Basse, N., Brakel, R., Burhenn, R., ...
Divertors for Helical Devices: Concepts, Plans, Results, and Problems (2004)
König,R., Grigull,P., McCormick,K., Feng,Y., Ehmler,H., Gadelmeier,F., ...
Study of the detachment phases in the W7-AS stellarator (2004)
Wenzel,U., McCormick,K., Ramasubramanian,N., Gadelmeier,F., Grigull,P., König,R., ...
Stationary and transient heat load in the island divertor of W7-AS (2004)
Gadelmeier,F., Herrmann,A., Hildebrandt,D., McCormick,K., Naujoks,D., Grigull,P., ...
Divertors for Helical Devices: Concepts, Plans, Results, and Problems (2004)
König, R., Grigull, P., McCormick, K., Feng, Y., Ehmler, H., Gadelmeier, F., ...
Study of the detachment phases in the W7-AS stellarator (2004)
Wenzel, U., McCormick, K., Ramasubramanian, N., Gadelmeier, F., Grigull, P., König, R., ...
Stationary and transient heat load in the island divertor of W7-AS (2004)
Gadelmeier, F., Herrmann, A., Hildebrandt, D., McCormick, K., Naujoks, D., Grigull, P., ...
Thermographic observation of the divertor target plates in the stellarators W7-AS and W7-X (2003)
Hildebrandt,D., Gadelmeier,F., Grigull,P., McCormick,K., Naujoks,D., Sünder,D., ...
Thermography is applied on the stellarator W7-AS to monitor the thermal load of the recently installed divertor targets. A three dimensional numerical code was developed to evaluate power fluxes...
Island divertor experiments on the Wendelstein 7-AS stellarator (2003)
McCormick,K., Grigull,P., Burhenn,R., Brakel,R., Ehmler,H., Feng,Y., ...
A promising new operational regime on the Wendelstein stellarator W7-AS has been discovered, fulfilling the conditions of optimal core behavior in combination with edge parameters suitable for...
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...
Grigull,P., McCormick,K., Feng,Y., Werner,A., Brakel,R., Ehmler,H., ...
The new island divertor in W7-AS enables quasi steady-state operation with NBI at very high density including scenarios with stable detachment from the targets. Experiments with reversed B-field...
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., ...
Island divertor spectroscopy at the Wendelstein W7-AS stellarator (2003)
König,R., Ramasubramanian,N., McCormick,K., Grigull,P., Gadelmeier,F., Wenzel,U., ...
The island divertor concept, which is regarded as being the natural concept for low shear advanced stellarators like W7-AS and W7-X, has for the first time been put to a realistic test in the present...
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...
Island divertor experiments on the Wendelstein 7-AS stellarator (2003)
McCormick,K., Grigull,P., Burhenn,R., Brakel,R., Ehmler,H., Feng,Y., ...
Major results from Wendelstein 7-AS stellarator (2003)
Wagner,F., Burhenn,R., Gadelmeier,F., Geiger,J., Hirsch,M., Laqua,H. P., ...
Thermographic observation of the divertor target plates in the stellarators W7-AS and W7-X (2003)
Hildebrandt, D., Gadelmeier, F., Grigull, P., McCormick, K., Naujoks, D., Sünder, D., ...
Thermography is applied on the stellarator W7-AS to monitor the thermal load of the recently installed divertor targets. A three dimensional numerical code was developed to evaluate power fluxes...
Island divertor experiments on the Wendelstein 7-AS stellarator (2003)
McCormick, K., Grigull, P., Burhenn, R., Brakel, R., Ehmler, H., Feng, Y., ...
A promising new operational regime on the Wendelstein stellarator W7-AS has been discovered, fulfilling the conditions of optimal core behavior in combination with edge parameters suitable for...
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...
Grigull, P., McCormick, K., Feng, Y., Werner, A., Brakel, R., Ehmler, H., ...
The new island divertor in W7-AS enables quasi steady-state operation with NBI at very high density including scenarios with stable detachment from the targets. Experiments with reversed B-field...
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., ...
Island divertor spectroscopy at the Wendelstein W7-AS stellarator (2003)
König, R., Ramasubramanian, N., McCormick, K., Grigull, P., Gadelmeier, F., Wenzel, U., ...
The island divertor concept, which is regarded as being the natural concept for low shear advanced stellarators like W7-AS and W7-X, has for the first time been put to a realistic test in the present...
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...
Island divertor experiments on the Wendelstein 7-AS stellarator (2003)
McCormick, K., Grigull, P., Burhenn, R., Brakel, R., Ehmler, H., Feng, Y., ...
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...
New advanced operational regime on the W7-AS stellarator (2002)
McCormick,K., Grigull,P., Burhenn,R., Brakel,R., Ehmler,H., Feng,Y., ...
A promising new plasma operational regime on the Wendelstein stellarator W7-AS has been discovered. It is extant above a threshold density and characterized by flat density profiles, high energy and...
Island divertor experiments on the W7-AS stellarator (2002)
Gadelmeier,F., Grigull,P., McCormick,K., 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., ...
Plasma performance of Wendelstein 7-AS with the new boundary-island divertor modules (2002)
McCormick,K., Grigull,P., Burhenn,R., Brakel,R., Ehmler,H., Feng,Y., ...
Performance and stability of high-β discharges in W7-AS (2002)
Weller,A., Geiger,J., Werner,A., Klose,S., Baldzuhn,J., Brakel,R., ...
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...
New advanced operational regime on the W7-AS stellarator (2002)
McCormick, K., Grigull, P., Burhenn, R., Brakel, R., Ehmler, H., Feng, Y., ...
A promising new plasma operational regime on the Wendelstein stellarator W7-AS has been discovered. It is extant above a threshold density and characterized by flat density profiles, high energy and...
Island divertor experiments on the W7-AS stellarator (2002)
Gadelmeier, F., Grigull, P., McCormick, K., 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., ...
Plasma performance of Wendelstein 7-AS with the new boundary-island divertor modules (2002)
McCormick, K., Grigull, P., Burhenn, R., Brakel, R., Ehmler, H., Feng, Y., ...
Performance and stability of high-β discharges in W7-AS (2002)
Weller, A., Geiger, J., Werner, A., Klose, S., Baldzuhn, J., Brakel, R., ...
The Impact of the New Island Divertor on the Plasma Performance in the W7-AS Stellarator (2002)
Grigull, P., McCormick, K.., Burhenn, R., Brakel, R., Ehrmler, H., Feng, Y., ...
Edge transport barrier formation and ELM phenomenology in the W7-AS stellarator (2001)
Grigull,P., Hirsch,M., Baldzuhn,J., Ehmler,H., Gadelmeier,F., Giannone,L., ...
Edge transport barrier formation and ELM phenomenology in the W7-AS stellarator (2001)
Grigull, P., Hirsch, M., Baldzuhn, J., Ehmler, H., Gadelmeier, F., Giannone, L., ...
Conditions for Island Divertor Operation in the W7-AS Stellarator (2001)
Gadelmeier, F., Feng, Y., Grigull, P., Giannone, L., Kisslinger, J., Knauer, J., ...
Spectra of Highly Ionized Xenon (6-30 nm) Excited in W7-AS Plasmas (2001)
Hacker, H.H., Burhenn, R., Kondo, K., Anton, M., Assmus, D., Baeumel, S., ...
First Island Divertor Experiments on the W7-AS Stellarator. Invited Paper (2001)
Grigull, P., McCormick, K., Baldzuhn, J., Burhenn, R., Brakel, R., Ehmler, H., ...
Operational Boundaries on the Stellarator W7-AS at the Beginning of the Divertor Experiments (2001)
Jaenicke, R., Anton, M., Baldzuhn, J., Bäumel, S., Brakel, R., Burhenn, R., ...
Confinement of Neutral-Beam-Injected Fast Ions in W7-AS (2000)
Rust, N., Reimbold, S., Hübner, K., Gadelmeier, F., Kick, M., Weller, A.
Behaviour of the W7-AS island divertor
Grigull,P., McCormick,K., Feng,Y., Werner,A., König,R., Brakel,R., ...
Wendelstein 7-AS results relevant for Wendelstein 7-X
Klinger,T., Baldzuhn,J., Baeumel,S., Brakel,R., Burhenn,R., Dinklage,A., ...
Divertors for Helical Devices: Concepts, Plans, Results, and Problems
König,R., Grigull,P., McCormick,K., Feng,Y., Ehmler,H., Gadelmeier,F., ...
Essential Elements of the High Density H-Mode on W7-AS
McCormick,K., Burhenn,R., Grigull,P., Baldzuhn,J., Baeumel,S., Brakel,R., ...
Spectroscopic study of the detachment phases in the W7-AS stellarator with island divertors
Wenzel,U., McCormick,K., Ramasubramanian,N., Gadelmeier,F., Grigull,P., König,R., ...
Edge and divertor physics issues for W7-X
König,R., Feng,Y., Grigull,P., McCormick,K., Ehmler,H., Gadelmeier,F., ...
Experiments close to the beta-limit in W7-AS
Weller,A., Geiger,J., Werner,A., Zarnstorff,M. C., Nührenberg,C., Sallander,E., ...
Edge and Divertor Physics Issues for W7-X
König,R., Feng,Y., Grigull,P., McCormick,K., Ehmler,H., Gadelmeier,F., ...
Behaviour of the W7-AS island divertor
Grigull, P., McCormick, K., Feng, Y., Werner, A., König, R., Brakel, R., ...
Wendelstein 7-AS results relevant for Wendelstein 7-X
Klinger, T., Baldzuhn, J., Baeumel, S., Brakel, R., Burhenn, R., Dinklage, A., ...
Divertors for Helical Devices: Concepts, Plans, Results, and Problems
König, R., Grigull, P., McCormick, K., Feng, Y., Ehmler, H., Gadelmeier, F., ...
Essential Elements of the High Density H-Mode on W7-AS
McCormick, K., Burhenn, R., Grigull, P., Baldzuhn, J., Baeumel, S., Brakel, R., ...
Spectroscopic study of the detachment phases in the W7-AS stellarator with island divertors
Wenzel, U., McCormick, K., Ramasubramanian, N., Gadelmeier, F., Grigull, P., König, R., ...
Edge and divertor physics issues for W7-X
König, R., Feng, Y., Grigull, P., McCormick, K., Ehmler, H., Gadelmeier, F., ...