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AOS (Baffles & Beam dumps)
kouseki.miyo - 23:03 Wednesday 14 March 2018 (4451) Print this report
Pumping down IYC chamber

Akutsu, Miyo

Pumpling down IYC chamber

  • 16:40, pumping start. 
  • also we found periodic noise every 10minutes. may be iluminator on X, Y photo sensor.
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Comments to this report:
tomotada.akutsu - 23:38 Wednesday 14 March 2018 (4456) Print this report

Before closing the door, some supports were removed (as in the usual manner) to reduce thermal contact with the 8K shield, so the moving shown in some DoFs might be related to this effect. Pitch is related to ground moving?? I have no clear idea... some spikes in some DoFs could be due to turning on of the TCam illuminator ?

takaaki.yokozawa - 10:02 Thursday 15 March 2018 (4464) Print this report
Yokozawa changed the illuminator rate to every 10min -> every 1 hour.
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