V. Rohde

Details der Publikationsliste

Zeitraum

1997 - 2009

Anzahl

278

Co-Autoren

Direct observation of current in type I ELM filaments on Asdex Upgrade (2009)

Vianello, N., Naulin, V., Schrittwieser, R., Muller, H. W., Zuin, M., Ionita, C., ...

Magnetically confined plasmas are often subject to relaxation oscillations accompanied by large transport events. This is particularly the case for the high confinement regime of tokamaks where these...

Tungsten erosion and redeposition in the all-tungsten divertor of ASDEX Upgrade (2009)

Mayer, M., Rohde, V., Ramos, G., Sugiyama, K., Krieger, K., Neu, R., ...

12th International Workshop on Plasma Facing Materials and Components for Fusion Applications, Jülich, Germany, May 11-14, 2009

Long-term compositions of surface layers in the all-tungsten divertor of ASDEX Upgrade (2009)

Hakola, Antti, Likonen, Jari, Koivuranta, Seppo, Mayer, M., Neu, R., Rohde, V., ...

12th International Workshop on Plasma Facing Materials and Components for Fusion Applications, Jülich, Germany, May 11-14, 2009

Investigation of local carbon transport in the ASDEX Upgrade divertor using 13CH4 puffing (2008)

Pugno, R., Krieger, K., Airila, Markus, Aho-Mantila, L., Kreter, A., Rohde, V., ...

PSI18 - 18th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, Toledo, Spain, May 26-30 2008

Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade (2008)

Mayer, M., Rohde, V., Hopf, C., Likonen, Jari, Linding, S., ...

PSI18 - 18th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, Toledo, Spain, May 26-30 2008

Gas balance and fuel retention in fusion devices (2007)

T. Loarer, C. Brosset, J. Bucalossi, P. Coad, G. Esser, J. Hogan, ...

The evaluation of hydrogenic retention in present tokamaks is of crucial importance to estimate the expected tritium (T) vessel inventory in ITER, limited from safety considerations to 350 g. In the...

Overview of ASDEX Upgrade results-development of integrated operating scenarios for ITER (2005)

Günter, S., Angioni, C., Apostoliceanu, M., Atanasiu, C., Balden, M., Becker, G., ...

This article based on the 2004 Fusion Energy Conference contribution (Vilamoura, Portugal, 1-6 November 2004)

Modeling of tungsten transport in the SOL for sources at the central column of ASDEX Upgrade using DIVIMP (2003)

Geier, A., Krieger, K., Elder, J. D., Pugno, R., Rohde, V., ASDEX Upgrade Team

Tungsten erosion at the central column and tungsten transport in the scrape-off layer of ASDEX Upgrade have been modeled with the 2D Monte-Carlo impurity transport code DIVIMP. The main objectives...

Characterization of dust collected from ASDEX-Upgrade and LHD (2003)

Sharpe, J. P., Rohde, V., ASDEX Upgrade Team, Sagara, A., Suzuki, H., Komori, A., ...

Dust has been collected and analyzed from Axial Symmetric Divertor Experiment-Upgrade (ASDEX-Upgrade) and the Large Helical Device (LHD). A total quantity of 984.4 mg of dust was collected from...

New results from the tungsten programme at ASDEX Upgrade (2003)

Neu, R., Dux, R., Geier, A., Krieger, K., Maier, H., Pugno, R., ...

Since 1998 an increasing area of tungsten coated tiles has been installed at the central column of ASDEX Upgrade, reaching 7.1 m² in 2001/2002. The tiles were coated commercially by plasma arc...

Hydrogen frosting scenarios with the ASDEX upgrade in-vessel cryo pump (2003)

Streibl, B., Berger, N., Brendel, U., Härtl, T., Rohde, V., Schall, G.

The ASDEX upgrade vacuum vessel is equipped with 14 turbo molecular pumps (TMPs) and a cryo pump (CP). The CP is cooled with boiling helium (He). To obtain similar conditions with the CP for hydrogen...

Edge transport and its interconnection with main chamber recycling in ASDEX Upgrade (2003)

Kallenbach, A., Dux, R., Gafert, J., Haas, G., Horton, L. D., Jakobi, M., ...

Edge profiles of electron temperature and density are measured in ASDEX Upgrade with a high spatial resolution of 2–3 mm with Thomson scattering. In the region of the edge transport barrier in ELMy...

Erosion and migration of tungsten employed at the main chamber first wall of ASDEX Upgrade (2003)

Krieger, K., Geier, A., Gong, B., Maier, H., Neu, R., Rohde, V., ...

In ASDEX Upgrade, tungsten is employed as plasma facing material at the central column of the plasma main chamber. The campaign averaged tungsten erosion flux was determined by measuring the...

Characterisation of deposited hydrocarbon layers below the divertor and in the pumping ducts of ASDEX Upgrade (2003)

Mayer, M., Rohde, V., Von Keudell, A., ASDEX Upgrade Team

The growth of codeposited layers has been studied with long term samples below the divertor IIb and in a pump duct of ASDEX Upgrade from March to August 2001. The composition of redeposited layers...

Plasma-wall interaction and first-wall materials in ASDEX Upgrade (2003)

Neu, R., Kallenbach, A., Krieger, K., Rohde, V., Roth, J.

Experiments dealing with plasma-wall interactions and first-wall materials comprise a significant part of the work program of ASDEX Upgrade. To elucidate carbon chemical erosion under...

On the formation of a-C:D layers and parasitic plasma underneath the roof baffle of the ASDEX Upgrade divertor (2003)

Rohde, V., Mayer, M., ASDEX Upgrade Team

The key problem for the use of carbon in a future fusion device is the formation of tritium containing a-C:H layers. ASDEX Upgrade offers the possibility to investigate these layers at ITER relevant...

The ASDEX Upgrade divertor IIb—a closed divertor for strongly shaped plasmas (2003)

Neu, R., Fuchs, J. C., Kallenbach, A., Maggi, C., Rohde, V., Ryter, F., ...

A new divertor configuration (DIV-IIb) has been implemented in ASDEX Upgrade. In order to accommodate a large variety of plasma shapes with bottom triangularities (δbot) up to 0.48, the outer...

Overview of ASDEX Upgrade results (2003)

Zohm, H., Angioni, C., Arslanbekov, R., Atanasiu, C., Becker, G., Becker, W., ...

Recent results from the ASDEX Upgrade experimental campaigns 2001 and 2002 are presented. An improved understanding of energy and particle transport emerges in terms of a 'critical gradient' model...

Characterisation and formation of a-C:D layers below the divertor of ASDEX Upgrade (2003)

Rohde, V., Mayer, M., ASDEX Upgrade Team

Underneath the ASDEX Upgrade divertor two different types of amorphous hydrocarbon layers were found. Transparent soft layers with a typical ratio of D/C approximate to 1 and brownish hard layers...

Overview of ASDEX upgrade results (2003)

Zohm, H., Angioni, C., Arslanbekov, R., Atanasiu, C., Becker, G., Becker, W., ...

Recent results from the ASDEX Upgrade experimental campaigns 2001 and 2002 are presented. An improved understanding of energy and particle transport emerges in terms of a 'critical gradient' model...

Erosion and migration of tungsten employed at the central column heat shield of ASDEX Upgrade (2002)

Krieger, K., Gong, X., Balden, M., Hildebrandt, D., Maier, H., Rohde, V., ...

In ASDEX Upgrade, tungsten was employed as plasma facing material at the central column heat shield in the plasma main chamber. The campaign averaged tungsten erosion flux was determined by measuring...

Development of tungsten coated first wall and high heat flux components for application in ASDEX Upgrade (2002)

Maier, H., Luthin, J., Balden, M., Lindig, S., Linke, J., Rohde, V., ...

In the tokamak experiment ASDEX Upgrade, the investigation of tungsten as a first wall material is an ongoing research project. In a step-by-step strategy, the tungsten covered surface area is...

Impurity behaviour in the ASDEX Upgrade divertor tokamak with large area tungsten walls (2002)

Neu, R., Dux, R., Geier, A., Kallenbach, A., Pugno, R., Rohde, V., ...

At the central column of ASDEX Upgrade, an area of 5.5 m(2) of graphite tiles was replaced by tungsten-coated tiles representing about two-thirds of the total area of the central column. No negative...

Properties of the new divertor IIb in ASDEX Upgrade (2002)

Neu, R., Fuchs, J. C., Haas, G., Herrmann, A., Kallenbach, A., Laux, M., ...

A new divertor configuration (DIV IIb) has been implemented in ASDEX Upgrade. In order to accommodate a large variety of plasma shapes with bottom triangularities (delta(bot)) up to 0.48, the outer...

Transport into and across the scrape-off layer in the ASDEX Upgrade divertor tokamak (2002)

Neuhauser, J., Coster, D., Fahrbach, H. U., Fuchs, J. C., Haas, G., Herrmann, A., ...

The elements of transport into and across the scrape-off layer in the poloidal divertor tokamak ASDEX Upgrade are analysed for different operational regimes with emphasis on enhanced confinement...

Steady state advanced scenarios at ASDEX Upgrade (2002)

Sips, A.C.C., Arslanbekov, R., Atanasiu, C., Becker, W., Becker, G., Behler, K., ...

Recent experiments at ASDEX Upgrade have achieved advanced scenarios with high beta(N) (> 3) and confinement enhancement over ITER98(y, 2) scaling, H-H98y2 = 1.1-1.5, in steady state. These...

Intraventricular recombinant tissue plasminogen activator for lysis of intraventricular haemorrhage.

Rohde, V, Schaller, C, Hassler, W E

A prospective series of 20 patients with moderate to severe intraventricular haemorrhage (IVH) was studied for the effect of intraventricular administration of recombinant tissue plasminogen...

Prospective analysis of bedside percutaneous subdural tapping for the treatment of chronic subdural haematoma in adults

Reinges, M., Hasselberg, I., Rohde, V., Kuker, W., Gilsbach, J.

OBJECTIVES—Although there is general agreement that surgery is the best treatment for chronic subdural haematoma (CSDH), the extent of the surgical intervention is not well defined.
METHODS—...

Functional MRI for presurgical planning: problems, artefacts, and solution strategies

Krings, T, Reinges, M, Erberich, S, Kemeny, S, Rohde, V, Spetzger, U, ...

OJECTIVES—Presurgical mapping of motor function is a widely used clinical application of functional (f) MRI, employing the blood oxygenation level dependent contrast. The aim of this study was to...

Metabolic and electrophysiological validation of functional MRI

Krings, T, Schreckenberger, M, Rohde, V, Foltys, H, Spetzger, U, Sabri, O, ...

OBJECTIVES—Although functional MRI is widely used for preoperative planning and intraoperative neuronavigation, its accuracy to depict the site of neuronal activity is not exactly known. Experience...

Focused high frequency repetitive transcranial magnetic stimulation for localisation of the unexposed primary motor cortex during brain tumour surgery

Rohde, V, Mayfrank, L, Weinzierl, M, Krings, T, Gilsbach, J

Objectives: To investigate if intraoperative focused high frequency repetitive transcranial magnetic stimulation (rTMS) can localise the primary motor cortex without exposure of the cortical surface.

Lateral transmuscular or combined interlaminar/paraisthmic approach to lateral lumbar disc herniation? A comparative clinical series of 48 patients

Ryang, Y, Rohde, I, Ince, A, Oertel, M, Gilsbach, J, Rohde, V

Background: The optimum operative technique for lateral lumbar disc herniations (LLDH) remains unclear, and both interlaminar and extraspinal approaches are used.