19H
They succeeded to get 90 % transmission with CSS1 but the energy at the exit was changed by 4%, that is not compatible with the CSS2 limit of 1 %. After fitting the CSS1 energy they obtained 70-80 % transmission only, but it is enough. The problem with the HF of CSS2 was solved. They are trying to accelerate with CSS2. They are now at midway inside CSS2. They still need several hours to finish the work.
15H
The problem with CSS1 is not yet solved. They want 90% transmission of the beam in CSS1, they have 75%.
There is another problem, the HF of CSS2 has dysfonctionnements.
They don't expect beam before 20H. |