scholarly journals Preliminary estimates of tritium permeation and retention in the first wall of DEMO due to ion bombardment

2021 ◽  
pp. 101039
Author(s):  
R. Arredondo ◽  
K. Schmid ◽  
F. Subba ◽  
G.A. Spagnuolo
Keyword(s):  
Ion Bombardment ◽  
First Wall ◽  
Tritium Permeation

Surface condition effects on tritium permeation through the first wall of a water-cooled ceramic breeder blanket

2016 ◽  
Vol 109-111 ◽  
pp. 586-589 ◽  
Author(s):  
H.-S. Zhou ◽  
Y.-P. Xu ◽  
H.-D. Liu ◽  
F. Liu ◽  
X.-C. Li ◽  
...  
Keyword(s):  
Surface Condition ◽  
First Wall ◽  
Tritium Permeation

Analysis of Plasma-Driven Tritium Permeation Through the First Wall of DFLL-TBM in ITER

2009 ◽  
Vol 11 (6) ◽  
pp. 730-733
Author(s):  
Song Yong ◽  
Huang Qunying ◽  
Ni Muyi
Keyword(s):  
First Wall ◽  
Tritium Permeation

Implantation Measurements to Determine Tritium Permeation in First Wall Structures

1983 ◽  
Vol 4 (2P2) ◽  
pp. 677-680
Author(s):  
D. F. Holland ◽  
R. A. Causey ◽  
M. L. Sattler
Keyword(s):  
First Wall ◽  
Wall Structures ◽  
Tritium Permeation

Tritium permeation through the first wall of the EU-HCPB blanket

2000 ◽  
Vol 49-50 ◽  
pp. 921-926 ◽  
Author(s):  
Olga V Ogorodnikova ◽  
Xavier Raepsaet ◽  
Michael A Fütterer
Keyword(s):  
First Wall ◽  
Tritium Permeation ◽  
The Eu

Tritium Inventory in Iter First Wall and Tritium Permeation Through it Under Tokamak Operation with Disruptions

2002 ◽  
Vol 10 (2) ◽  
pp. 99-107 ◽  
Author(s):  
Yu. V. Martynenko ◽  
P. G. Moskovkin ◽  
B. N. Kolbasov
Keyword(s):  
First Wall ◽  
Tritium Permeation

Alignment of small He-Bubbles during in situ deformation of Al-foils

1978 ◽  
Vol 36 (1) ◽  
pp. 396-397
Author(s):  
E. Ruedl ◽  
P. Schiller
Keyword(s):  
Fusion Reactor ◽  
Matrix Material ◽  
Fusion Reactors ◽  
First Wall ◽  
Potential Matrix ◽  
In Situ Deformation ◽  
Α Particles ◽  
Metal Aluminium

The low Z metal aluminium is a potential matrix material for the first wall in fusion reactors. A drawback in the application of A1 is the rel= atively high amount of He produced in it under fusion reactor conditions. Knowledge about the behaviour of He during irradiation and deformation in Al, especially near the surface, is therefore important.Using the TEM we have studied Al disks of 3 mm diameter and 0.2 mm thickness, which were perforated at the centre by double jet polishing. These disks were bombarded at∽200°C to various doses with α-particles, impinging at any angle and energy up to 1.5 MeV at both surfaces. The details of the irradiations are described in Ref.1. Subsequent observation indicated that in such specimens uniformly distributed He-bubbles are formed near the surface in a layer several μm thick (Fig.1).After bombardment the disks were deformed at 20°C during observation by means of a tensile device in a Philips EM 300 microscope.

Ion Beam Mixing of Ni-Ti Bilayered Thin Films

1985 ◽  
Vol 43 ◽  
pp. 290-291
Author(s):  
A. K. Rai ◽  
R. S. Bhattacharya ◽  
M. H. Rashid
Keyword(s):  
Crystal Structure ◽  
Thin Films ◽  
Amorphous Alloys ◽  
Ion Beam ◽  
Ion Bombardment ◽  
High Energy ◽  
Mixing Efficiency ◽  
Ion Beam Mixing ◽  
Enhanced Diffusion ◽  
Binary Metal

Ion beam mixing has recently been found to be an effective method of producing amorphous alloys in the binary metal systems where the two original constituent metals are of different crystal structure. The mechanism of ion beam mixing are not well understood yet. Several mechanisms have been proposed to account for the observed mixing phenomena. The first mechanism is enhanced diffusion due to defects created by the incoming ions. Second is the cascade mixing mechanism for which the kinematicel collisional models exist in the literature. Third mechanism is thermal spikes. In the present work we have studied the mixing efficiency and ion beam induced amorphisation of Ni-Ti system under high energy ion bombardment and the results are compared with collisional models. We have employed plan and x-sectional veiw TEM and RBS techniques in the present work.

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