A flash and "thumb" was observed at the end of the mass scan.

Friday, July 12, 2013, 15:51: Ray Dube had a look inside. After the fuse was reset, the Power Supply could operate again.

A power bump was experienced at about the same time as the MB1 fuse latched.

https://web.accel.triumf.ca/isac_elog/Elog_show_result.pl?inid=172266&style=entry#172266