At 19:10 Frank called us that vacuum in sections 08 and 10 got worse by about 1.5 times. There is a possible danger that vacuum valves can get closed if rest gas pressure is above the set treshhold.

Nikos warmed the cryostat by 0.5 degrees from 129.0 K to 129.5 K and the pressure became better than before. We cooled the system in steps of 0.1 degress down to 129.1 K and again observed the pressure rise.

We think we can stay with the present conditions. However, the pressure shall be monitored not to hit the treshhold.