Ponente
Descripción
ISIS TS2 targets consistently require replacement only ~1.5 years into their nominally 5-year design lifetime. The achievable life is limited by increasing activation of the cooling water, thought to be due to tungsten in direct contact with water. The cause of these issues has been a long-standing mystery.
Recent advances have been made in understanding radiation damage effects on tungsten, and incorporating these into detailed FEA simulations. This offers a possible explanation for the observed issues which is consistent with the target lifetimes we have experienced. This raises the possibility that such failures could be predicted and avoided in future. The same analysis method has now been applied to ISIS TS1 targets to confirm that there are no issues expected.
When designing future targets, e.g. for an ISIS-II facility, it will be important to take account of radiation damage effects and prior target operating experience. The proposed approach to setting appropriate design limits for future ISIS targets will be discussed.
| abstract | Talk |
|---|
