Results 21 to 30 of about 32,282 (260)

Assessment of plasma power deposition on the ITER ICRH antennas

Nuclear Materials and Energy, 2021
Ion cyclotron resonance heating (ICRH) is one of the three additional heating schemes to be deployed on ITER. Its two antenna arrays, installed on the outboard midplane, will deliver 20 MW of RF power in the 40–55 MHz frequency range.
M. Brank, R.A. Pitts, G. Simič, P. Lamalle, M. Kocan, F. Köchl, Y. Gribov, V. Polli, L. Kos   +8 more
doaj   +1 more source

Materials for plasma facing components of fusion reactors [PDF]

Energy Materials, 2006
Abstract According to current knowledge and understanding, nuclear fusion can be developed to a sustainable energy technology. Fuel is abundant and key points for fusion power production and alpha particle heating have already been demonstrated. The next step device, international thermonuclear experimental reactor (ITER), is designed to demonstrate ...
H. Bolt, A. Brendel, D. Levchuk, H. Greuner, H. Maier   +4 more
openaire   +1 more source

Materials for the plasma-facing components of fusion reactors [PDF]

Journal of Nuclear Materials, 2004
Abstract During reactor operation the plasma-facing materials have to fulfil very complex and sometimes contradicting requirements. At present, tungsten shows the highest promise as plasma-facing material. Experiments in the ASDEX Upgrade tokamak indicate that plasma operation is feasible with walls and divertor surfaces mostly covered with tungsten.
Bolt, H., Barabash, V., Krauss, W., Linke, J., Neu, R., Suzuki, S., Yoshida, N.   +6 more
openaire   +4 more sources

Magnetohydrodynamics in free surface liquid metal flow relevant to plasma-facing components

Nuclear Fusion, 2023
While flowing Liquid Metal (LM) Plasma-Facing Components (PFCs) represent a potentially transformative technology to enable long-pulse operation with high-power exhaust for fusion reactors, Magnetohydrodynamic (MHD) drag in the conducting LM will reduce ...
Z. Sun, J. Al Salami, A. Khodak, F. Saenz, B. Wynne, R. Maingi, K. Hanada, C.H. Hu, E. Kolemen   +8 more
doaj   +1 more source

Evaluation of a boron nitride–boron pebble aggregate material for renewable plasma-facing surfaces in magnetic fusion devices

Nuclear Materials and Energy
We demonstrate a new renewable boron aggregate material that can withstand heat loads of 40MWm-2 without cooling and featuring low sublimation of below 100Torr-L/s/m2 and sputtering yield of 0.04 from 40eV D, similar to solid boron.
Erick Martinez-Loran, Daisuke Nishijima, Marlene Patino, Angelica Ottaviano, Lucy Tang, Santhosh Kumar, Jose Boedo, Eric Hollmann   +7 more
doaj   +1 more source

The Improvement of Bonding Strength of W/Cu Joints via Nano-Treatment of the W Surface

Metals, 2021
W/Cu joining is key for the fabrication of plasma-facing compounds of fusion reactors. In this work, W and Cu are joined through three steps: (1) hydrothermal treatment and reduction annealing (i.e., nano-treatment), (2) Cu plating and annealing in a ...
Fei Li, Yuanyuan Chen, Xin Chen, Cai Li, Yuan Huang   +4 more
doaj   +1 more source

Plasma exposures of a high-conductivity graphitic foam for plasma facing components

Nuclear Materials and Energy, 2018
The plasma-surface interactions from samples of high-conductivity graphitic foam biased to 120 V and placed in 6–8 eV deuterium plasmas with densities as high as 1019 m−3 were investigated at the PSI-2 linear plasma device in Jülich.
D.L. Youchison, S. Brezinsek, A. Lumsdaine, J.W. Klett, J.W. Coenen, C. Parish, A.V. Ievlev, J. Oelmann, C. Li, M. Rasinski, Y. Martynova, Ch. Linsmeier, S. Ertmer, A. Kreter   +13 more
doaj   +1 more source

Strain Effects on the Diffusion Properties of Near-Surface Self-Interstitial Atoms and Adatoms in Tungsten

Frontiers in Materials, 2021
Tungsten (W) is a candidate for the plasma-facing components and divertor in future fusion applications. The material will be subject to a large particle influx (mainly helium and hydrogenic species) that will form bubbles. As bubbles grow, they compress
Bochuan Sun, Dimitrios Maroudas, Brian D. Wirth, Brian D. Wirth, Enrique Martínez, Enrique Martínez   +5 more
doaj   +1 more source

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Rasheed A. Balogun   +4 more
wiley   +1 more source

Material mixing on plasma-facing components: Compound formation

Journal of Nuclear Materials, 2009
Two different tungsten limiters (castellated bulk metal block and W-coated graphite), subjected to high power loads in the TEXTOR tokamak, were examined in order to determine chemical composition of deposits inside the castellated grooves and on side surfaces of the coated limiter.
Psoda, M., Rubel, Marek J., Sergienko, G., Sundelin, Per, Pospieszczyk, A.   +4 more
openaire   +3 more sources