Arc power supply replaced. Water leaks down to one or two pinholes on source body; manageable. Minor mechanical in progress.

Vacuum Group experts looked at IOS:BP1, reported noisy for a minute yesterday. Basically, keep a watch. It should be okay to Shutdown. We will order a seal kit and negotiate for a backup scroll pump.

Later... Electrical is complete and tested. Arc and filament power supplies run in local mode only, with insulated knob extenders through the cage wall. The source is ready for testing. As noted yesterday, source gas is off presently.

In a little while, I will secure and enable the cage and ask ICR to perform an IOSIOC reboot test for us.