Use of titanium in the tokamak physics experiment (TPX)
- 作者：Davis ; J.W. ; Wille ; G.W. ; Heitzenroeder ; P.
- 刊名：Journal of Nuclear Materials
- 出版年：1996
- 期刊代码：51_00223115
- 类别：ms
- 出版时间：October 1, 1996
- 卷：233-237
- 期：Part 1
- 页码：592-595
- 文件大小：456 K
摘要
The titanium alloy Ti
phs/BO7.GIF>6Alphs/BO7.GIF>4V is currently the reference alloy for the vacuum vessel of the tokamak physics experiment (TPX), which will use Dphs/BO7.GIF>D as fuel. Titanium was selected because it satisfies the requirement of reduced radioactivation of the TPX vacuum vessel. Reduced activation allows the hands-on maintenance of components inside the vacuum vessel during the first two years of operation, with a gradual transition to fully remote maintenance required during the latter phases of TPX's experimental program when the neutron yields are expected to be much higher. It also reduces the eventual waste storage requirements. As part off the R&D program on TPX, two issues on titanium were studied: the impact of the plasma hydrogen absorption on titanium and the welding of thick sections. Based on preliminary analysis, no critical issues were encountered.
phs/BO7.GIF>6Alphs/BO7.GIF>4V is currently the reference alloy for the vacuum vessel of the tokamak physics experiment (TPX), which will use Dphs/BO7.GIF>D as fuel. Titanium was selected because it satisfies the requirement of reduced radioactivation of the TPX vacuum vessel. Reduced activation allows the hands-on maintenance of components inside the vacuum vessel during the first two years of operation, with a gradual transition to fully remote maintenance required during the latter phases of TPX's experimental program when the neutron yields are expected to be much higher. It also reduces the eventual waste storage requirements. As part off the R&D program on TPX, two issues on titanium were studied: the impact of the plasma hydrogen absorption on titanium and the welding of thick sections. Based on preliminary analysis, no critical issues were encountered.