J. Roth

Publication List Details

Period

1997 - 2008

Number

162

Co-Authors

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)

Chemical erosion of atomically dispersed doped hydrocarbon layers by deuterium (2003)

Balden, M., Roth, J., Wiltner, A.

The chemical erosion of atomically dispersed Ti-doped (~10 at.%) amorphous hydrocarbon layers (a-C:H:Ti) was investigated in the temperature range of 300–800 K for 30 eV deuterium impact. Compared...

Erosion of high-Z metals with typical impurity ions (2003)

Schmid, K., Roth, J.

This paper reviews the erosion properties of high-Z plasma facing materials due to the bombardment with typical impurity ions. The different impurity species present in today's fusion experiments are...

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...

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...

Deuterium retention in tungsten in dependence of the surface conditions (2003)

Ogorodnikova, O. V., Roth, J., Mayer, M.

The paper reviews hydrogen isotope retention and migration in tungsten (W). Due to a large scatter of the deuterium (D) retention database, new measurements of ion-driven D retention in...

Deuterium Retention by Implantation in Carbide-Doped Graphites (2003)

Balden, M., Oyarzabal, E., Durocher, K., Roth, J., Garcia-Rosales, C.

For fine-grain graphites with different final heat treatment, the influences of the porosity, degree of graphitization, and dopant (TiC, VC, WC, and ZrC) on the fluence dependence of the retention of...

Computer simulation of chemical erosion of graphite due to hydrogen ion bombardment (2003)

Liang, J. H., Mayer, M., Roth, J., Eckstein, W.

Chemical erosion of graphite due to hydrogen ion bombardment has been investigated theoretically by applying a model of chemical erosion to the TRIDYN code. The model involves the formation of...

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...

Rutherford backscattering spectroscopy and elastic recoil detection analysis with lithium ions - The better alternative to helium? (2002)

Mayer, M., Roth, J., Ertl, K.

Rutherford backscattering spectroscopy (RBS) and elastic recoil detection analysis (ERDA) with lithium ions are compared to using helium ions. The availability and accuracy of backscattering...

Comparison of surface modification and erosion of high-Z metals due to carbon ion implantation (2002)

Schmid, K., Roth, J.

In this work we investigated the erosion and carbon deposition behavior of different high-Z materials, namely W, Ta, Pt and An during irradiation by 2.4 keV C-12 ions in the temperature range from...

Concentration dependent diffusion of carbon in tungsten (2002)

Schmid, K., Roth, J.

This paper concerns with the concentration dependence of the C diffusion in W. An effective, concentration dependent diffusion coefficient D(C) was used to model the diffusion of C in W in the...

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...

Upgrading of the ultra-clean injector for depth profiling at the Munich AMS facility (2002)

Stan-Sion, C., Rohrer, L., Kubo, F., Lazarev, V., Hartung, P., Nolte, E., ...

At the Accelerator Laboratory of Ludwig Maximilian University (LMU) and Technical University Munich (TUM) Garching, Germany, the ultra-clean injector of the accelerator mass spectrometry facility was...