Bibliographic Details
| Title: |
Simulation of Polycrystalline Beryllium Sputtering by H, D, T Atoms. |
| Authors: |
Babenko, P. Yu.1 (AUTHOR), Mikhailov, V. S.1 (AUTHOR), Shergin, A. P.1 (AUTHOR), Zinoviev, A. N.1 (AUTHOR) zinoviev@inprof.ioffe.ru |
| Source: |
Technical Physics. Dec2023, Vol. 68 Issue 12, p512-520. 9p. |
| Subject Terms: |
*BERYLLIUM, *POTENTIAL barrier, *BERYLLIUM isotopes, *HYDROGEN isotopes, *ATOMIC beams, *ATOMS |
| Abstract: |
The results of modeling the sputtering coefficients of polycrystalline beryllium by hydrogen isotopes in the range of collision energies of 8 eV–100 keV and their dependences on the angle of incidence of the beam on the surface are presented. This data is necessary for estimating the sputtering of the first wall in the ITER tokamak made from beryllium. A strong surface shape influence on obtained results is shown. The limiting cases of a flat potential barrier (smooth surface) and a spherical potential barrier (a surface consisting of spikes) are considered. The effect of collision cascades on the sputtering coefficient has been established. The dependences of the average depth of sputtered particle formation on the bombarding particles energy are obtained for various angles of beam incidence on the target. The energy spectra and angular dependences of the ejection of sputtered particles are calculated for different energies of bombarding beam atoms. It is shown that the presence of an attractive well in the potential of an incident particle surface changes the sputtering coefficient dependence on incidence angle at small glancing angles. [ABSTRACT FROM AUTHOR] |
|
Copyright of Technical Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Academic Search Complete |
|
Full text is not displayed to guests. |
Login for full access.
|
