When: 14/June/2022
Who:Kimura, Yasui and Ueda (SK)
Task:
We started vacuum leak test at the IYC.
1. For the gate valve operation
Closed the gate valve (GVitmy) between IYC and Y-are at 9:28.
Opened the gate valve (GVitmy) between IYC and Y-are at 15:10.

2. Results of the test
This test revealed several flange fasteners with small leaks　with level of 10^-12 Pam^3/s.
The leaks were repaired by retightening the bolts that tighten the flanges.

3. Schedule
We aim to continue leak test for left part of the IYC on 15/June.