Abstract
Detailed tritium profiles on the JAERI Tokamak-60U (JT-60U) W-shaped divertor and the first wall tiles were examined by a tritium imaging plate technique (TIPT) and full combustion method. The highest tritium level (60 kBq/cm2) was observed at the dome top tiles. The tritium level of the divertor target was lower (2 kBq/cm2). The result of the triton deposition simulation using orbit following Monte-Carlo code was consistent with the tritium distribution obtained by TIPT and full combustion method. These results indicate that the tritium distribution of the JT-60U W-shaped divertor reflects mainly the distribution of the energetic triton impinging on the wall. According to the simulation, the tritium atoms produced by D-D nuclear reaction in JT-60U are not loosing completely their initial energy of 1 MeV and around 1/3 of them are implanted into the wall.
| Original language | English |
|---|---|
| Pages (from-to) | 514-518 |
| Number of pages | 5 |
| Journal | Journal of Nuclear Materials |
| Volume | 313-316 |
| Issue number | SUPPL. |
| DOIs | |
| Publication status | Published - 2003 Mar |
| Externally published | Yes |
| Event | Plasma - Surface Interactions in Controlled Fusion Devices - Gifu, Japan Duration: 2002 May 26 → 2002 May 31 |
Keywords
- D-D nuclear reaction
- High energy triton
- Orbit following Monte-Carlo code
- Ripple loss
- Tritium
- Tritium imaging plate technique
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Materials Science(all)
- Nuclear Energy and Engineering