Effect of helium presence on tungsten-deuterium co-deposited films
Co-deposited W-D, W-He, and mixed W-D-He films 250 nm thick were investigated. The films were obtained by magnetron sputtering of W in Ar:D2:He =: 1:1:0, 1:0:1, 1:1:0.05, and 1:1:0.2, gas mixtures and at deposition temperatures of ∼ 350 K, 500 K, and 800 K. The films were studied by thermal desorpti...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Nuclear Materials and Energy |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179122002174 |
| _version_ | 1811154388252622848 |
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| author | S. Krat E. Fefelova A. Pryshvitsin Yu. Gasparyan I. Sorokin V. Efimov A. Pisarev |
| author_facet | S. Krat E. Fefelova A. Pryshvitsin Yu. Gasparyan I. Sorokin V. Efimov A. Pisarev |
| author_sort | S. Krat |
| collection | DOAJ |
| description | Co-deposited W-D, W-He, and mixed W-D-He films 250 nm thick were investigated. The films were obtained by magnetron sputtering of W in Ar:D2:He =: 1:1:0, 1:0:1, 1:1:0.05, and 1:1:0.2, gas mixtures and at deposition temperatures of ∼ 350 K, 500 K, and 800 K. The films were studied by thermal desorption spectroscopy (TDS) with Tmax = 2200 K using threshold ionization mass spectrometry to separate D2 and He signals. It was found that films obtained in gas mixtures with mixed He-D2 atmospheres contained less total gas atoms than films deposited in pure D2 or He atmospheres. It was found that in mixed W-D-He films, He trapping with high binding energies (Tdes > 1500 K) is strongly mitigated. |
| first_indexed | 2024-04-10T04:14:44Z |
| format | Article |
| id | doaj.art-40ecf409110e4ca8af57c376d5b12c38 |
| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-04-10T04:14:44Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj.art-40ecf409110e4ca8af57c376d5b12c382023-03-12T04:21:21ZengElsevierNuclear Materials and Energy2352-17912023-03-0134101336Effect of helium presence on tungsten-deuterium co-deposited filmsS. Krat0E. Fefelova1A. Pryshvitsin2Yu. Gasparyan3I. Sorokin4V. Efimov5A. Pisarev6Corresponding author.; National Research Nuclear University MEPhI, Moscow, RussiaNational Research Nuclear University MEPhI, Moscow, RussiaNational Research Nuclear University MEPhI, Moscow, RussiaNational Research Nuclear University MEPhI, Moscow, RussiaNational Research Nuclear University MEPhI, Moscow, RussiaNational Research Nuclear University MEPhI, Moscow, RussiaNational Research Nuclear University MEPhI, Moscow, RussiaCo-deposited W-D, W-He, and mixed W-D-He films 250 nm thick were investigated. The films were obtained by magnetron sputtering of W in Ar:D2:He =: 1:1:0, 1:0:1, 1:1:0.05, and 1:1:0.2, gas mixtures and at deposition temperatures of ∼ 350 K, 500 K, and 800 K. The films were studied by thermal desorption spectroscopy (TDS) with Tmax = 2200 K using threshold ionization mass spectrometry to separate D2 and He signals. It was found that films obtained in gas mixtures with mixed He-D2 atmospheres contained less total gas atoms than films deposited in pure D2 or He atmospheres. It was found that in mixed W-D-He films, He trapping with high binding energies (Tdes > 1500 K) is strongly mitigated.http://www.sciencedirect.com/science/article/pii/S2352179122002174Co-deposited filmsDeuteriumHeliumThin filmsTDSFusion |
| spellingShingle | S. Krat E. Fefelova A. Pryshvitsin Yu. Gasparyan I. Sorokin V. Efimov A. Pisarev Effect of helium presence on tungsten-deuterium co-deposited films Nuclear Materials and Energy Co-deposited films Deuterium Helium Thin films TDS Fusion |
| title | Effect of helium presence on tungsten-deuterium co-deposited films |
| title_full | Effect of helium presence on tungsten-deuterium co-deposited films |
| title_fullStr | Effect of helium presence on tungsten-deuterium co-deposited films |
| title_full_unstemmed | Effect of helium presence on tungsten-deuterium co-deposited films |
| title_short | Effect of helium presence on tungsten-deuterium co-deposited films |
| title_sort | effect of helium presence on tungsten deuterium co deposited films |
| topic | Co-deposited films Deuterium Helium Thin films TDS Fusion |
| url | http://www.sciencedirect.com/science/article/pii/S2352179122002174 |
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