Analysis of Laser Surface Irradiation Regimes Influence in the Diagnostics of Hydrogen Isotope Retention
https://doi.org/10.56304/S2079562923030120
EDN: AKYBQO
Abstract
The work describes a comparison of the laser-assisted quadrupole mass spectrometry for two laser pulses: 15 ns and 80 ps for W−D films and Ti−V alloys with D. A technique is presented for samples production with high concentrations of the trapped deuterium, which allows to obtain a good signal repeatability on a quadrupole mass spectrometer for several laser shots, which can be used to align a diagnostic’s laser system. An experimental dependence of the deuterium release from the materials on the energy density is obtained. A high sensitivity of the technique is demonstrated, as well as a weak dependence on the duration of the laser pulse. A significant change in the deuterium concentration in the near-surface layer of the tungsten film during contact with the atmosphere is noted.
About the Authors
N. E. Efimov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute);
Saint Petersburg State University
Russian Federation
Russian Federation
D. N. Sinelnikov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
M. V. Grishaev
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
Yu. M. Gasparyan
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute);
Saint Petersburg State University
Russian Federation
Russian Federation
V. S. Efimov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
S. A. Krat
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
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Review
For citations:
Efimov N.E., Sinelnikov D.N., Grishaev M.V., Gasparyan Yu.M., Efimov V.S., Krat S.A. Analysis of Laser Surface Irradiation Regimes Influence in the Diagnostics of Hydrogen Isotope Retention. Nuclear Physics and Engineering. 2024;15(4):324-331. (In Russ.) https://doi.org/10.56304/S2079562923030120. EDN: AKYBQO
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