G. Kühner

Details der Publikationsliste

Zeitraum

1992 - 2009

Anzahl

99

Co-Autoren

1 FT/P7-6 Integrated Software Development for Wendelstein 7-X (2008)

A. Werner, A. Dinklage, G. Kühner, H. Maaßberg, J. Schacht, J. Svensson, ...

Abstract: Steady-state fusion devices, such as Wendelstein 7-X, pose a new challenge to the software capabilities for control, data acquisition and data analysis. These software modules must cope...

Steps towards an integrated data analysis: Basic concepts and Bayesian analysis of Thomson scattering data (2007)

A. Dinklage, R. Fischer, G. Kühner, H. Maaßberg, E. Pasch, J. Svensson

Aspects of the integration of different data sources are discussed with respect to improvement of reliability and significance of experimental results. Thomson scattering data have been analysed by...

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...

A glass/silicon technology for low-power robust gas sensors (2004)

Plaza, J.A., López-Bosque, M.J., Gracia, I., Cane, C., Wöllenstein, J., Kühner, G., ...

Semiconductor gas sensors are devices based on metallic oxides that operate at high temperatures for achieving good sensitivities to the gases of interest. Silicon micromachined structures are often...

New thermoelectric components using microsystem technologies (2004)

Böttner, H., Nurnus, J., Gavrikov, A., Kühner, G., Jägle, M., Künzel, C., ...

This paper describes the first thermoelectric devices based on the V-VI-compounds Bi/sub 2/Te/sub 3/ and (Bi,Sb)/sub 2/Te/sub 3/ which can be manufactured by means of regular thin film technology in...

New thermoelectric components using microsystem technologies (2004)

Böttner, H., Nurnus, J., Gavrikov, A., Kühner, G., Jägle, M., Künzel, C., ...

This paper describes the first thermoelectric devices based on the V-VI-compounds Bi/sub 2/Te/sub 3/ and (Bi,Sb)/sub 2/Te/sub 3/ which can be manufactured by means of regular thin film technology in...

High-resolution ruby laser Thomson scattering diagnostic for the W7-AS stellarator (2003)

Knauer,J. P., Pasch,E., Kühner,G.

After reconstruction, the ruby Thomson scattering diagnostic for the W7-AS stellarator is now in operation to again cover the complete plasma cross section (420 mm), where the former...

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...

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...

High-resolution ruby laser Thomson scattering diagnostic for the W7-AS stellarator (2003)

Knauer, J. P., Pasch, E., Kühner, G.

After reconstruction, the ruby Thomson scattering diagnostic for the W7-AS stellarator is now in operation to again cover the complete plasma cross section (420 mm), where the former...

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...

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...

Micromechanical fabrication of robust low-power metal oxide gas sensors (2003)

Friedberger, A., Kreisl, P., Rose, E., Müller, G., Kühner, G., Wöllenstein, J., ...

A fabrication process for miniaturized low-power metal oxide gas sensor arrays is presented. This process, which is based on silicon-on-insulator (SOI) wafers, leads to thermally insulated silicon...

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...

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...

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...

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...

Design and fabrication of a novel low cost hotplate micro gas sensor (2002)

Hildenbrand, J., Wöllenstein, J., Spiller, E., Kühner, G., Böttner, H., Urban, G., ...

We present a novel approach to produce a micromachined low cost hotplate gas sensor with reduced number of technology steps. The basic idea was to realise a simple device on common silicon substrates...

Preparation, morphology, and gas-sensing behavior of Cr/sub 2-x/Ti/sub x/O/sub 3+z/ thin films on standard silicon wafers (2002)

Wöllenstein, J., Plescher, G., Kühner, G., Böttner, H., Niemeyer, D., Williams, D.E.

The effect of humidity on chromium titanium oxide (Cr/sub 2-x/Ti/sub x/O/sub 3+z/, CTO), on both baseline resistance and sensitivity, is small compared to SnO/sub 2/. This has been the key to...

Multifunctional air-quality system based on advanced SnO2-sensor-array structures (1998)

Hoefer, U., Böttner, H., Kühner, G., Sulz, G., Volz, F., Wöllenstein, J.

The selectivity of SnO2-thin-film gas sensors towards various gases can be changed by varying the contact areas of the contact electrodes. Applying this technique it is possible to implement highly...

CO and CO2 thin-film SnO2 gas sensors on Si-substrates (1994)

Hoefer, U., Kühner, G., Schweizer, W., Sulz, G., Steiner, K.

Thin-film SnO2 gas sensors have been structured on Si substrates. The sensors are temperature stable at 900 deg C in synthetic air for 48 h. No significant outdiffusion of the sensor layers can be...

Thin-film In-doped V-catalysed SnO2 gas sensors. (1992)

Löw, H., Sulz, G., Lacher, M., Kühner, G., Uptmoor, G., Reiter, H., ...

Thin-film In-doped V-catalysed SnO2 gas sensors are discussed and compared with Pt-catalysed In-doped or undoped SnO2 gas sensors. The In acceptors are implanted, while the catalysts are directly...

Ni, In and Sb implanted Pt and V catalysed thin-film SnO2 gas sensors (1992)

Sulz, G., Kühner, G., Reiter, H., Uptmoor, G., Schweizer, W., Löw, H., ...

Thin-film technologies lead to low cost and reliable microsystems combining electronics and sensors. However, in competition to microelectronic fabrication sensor technologies exhibit a lack of...

Implanted thin-film SnO2 gas sensors. (1992)

Sulz, G., Löw, H., Lacher, M., Kühner, G., Reiter, H., Uptmoor, G., ...

Highly sophisticated thin-film technologies provide new tools for realizing low cost and reliable microsystems combining electronics and sensors. However, in competition to microelectronic...