March 29 Monday
- moved T1-MK1 target from beamline to hotcell (field from target 15mSv/hr @ 0.5m)
- flushed water through position 4
- flushed air through all positions
- left air running @ 5psi overnight through position 5
- potentiometer reading "O/L" at position 3, all other positions OK
- all micro switches OK
- removed the left plug (when facing ladder) at position 1 , but after reading elogs it was found that the right plug at position 1 was having issues. Will have to replug left with new plug
March 30 Tuesday
- pumped down with cold trap, started at 10:00
- test port 2.0 E-1 Torr after 1 hour
- cold trap removed, cleared, dried, refilled
- 11:10, started pumping, found leak at lab vac tubing joint. Fixed.
- 11:16, started pump again
- 11:24, 1.0 E-3 Torr TPP, 1.4 E-9 L/s leak rate
- preformed leak check, no response at all locations
- position 4 Be target removed (required hammering). Damaged spot, potential start of hole observed at center of beam spot (see attached photos)
- position 5 graphite target removed (required hammering)
- New 12 mm Be target #108 installed at position 4
- New 12 mm Be target #109 installed at position 5
- leaving position 3 plugged as the potentiometer is reading "O/L" as indicated from the multimeter
- New plug installed on left side of position 1
- 15:47, stated leak check pump down
- 15:57, 2.0 E-3 Torr
leak check results
All positions were no response (NR) except
Position 1, Right side plug) 5.9 E-8 Torr
Position 3, Left side fitting) 5.3 E-9 Torr
Position 4, Left side fitting) 4.2 E-9 Torr
All locations should be H2O tight
March 31 Wednesday
- took vertical and horizontal measurements of the new position of 4 and 5 targets (updated elevations PDF sheet included)
tested profile monitor activation
- started moving at 15 psi
- reached limit at 35 psi
- both limit switches OK
- Cleaned base of vacuum flange and top of support ring
- prepared target ready for transport with flask (ladder in position 0)
- contacted MCR to update XTPAGE 7L target details
- emailed Tony Tateyama to have PLC lookup tables updated with new target info
|