Start: 21:00
Stop: 14:24 (next day)
Root: 201906041423_background_AIDA_in.root
Comments: Beam on, rate at F7 8.9 kHz, the beam was stopped before 14:00 to change the plastic detectors at F3, F7, they are burning them
With the help of Tom the additional lead pieces were put. So now the hole in the lead shielding matches the hole in the polyethylene shielding.
The hole is 11 cm x 11 cm approximately