NAOJ GW Elog Logbook 3.2
Four 30 out of 36 washed pieces of the OSEMs, the coil wires are fixed to their bodies by a vac seal, and now being cured (for one or two days) in the ATC ISO-1 clean booth. I need more vac seals.
I use nozzles but the viscosity of the vac seal is so high that my grip now reduces forces..
The 30 pieces of the coil bodies are "doubly" packed into clean polyethylene packs (made in a class-100 room, the provider said) in the ATC ISO-1 clean booth. Will be sent to KEK soon.
The Remaining 37 OSEMs are now being cured in the ISO-1 clean booth in the ATC multipurpose experimental room!
Don't touch them for a couple of days.
Previously I did this 30 OSEM coils, and today 37coils, that means there will be 67 OSEMs in total. The number is sufficient for iKAGRA, but not for bKAGRA, as at least 70 OSEMs will be required for the bKAGRA (PRM, PR2, PR3, BS, SRM, SR2, SR3).
There are some OSEM coils washed or unwashed and used for trials of several process for the assembly, and they should be added to the number to fulfill the required numbers.
37 OSEM coil bodies are now packed into clean bags. (Akutsu, Fujii)
Plus 5 OSEM coil bodies are washed (by ethanol), and then 67+5 = 72 OSEM coil bodies will be available in the end.