Thu Apr 14 09:52:59 2011: Target is wrapped with 3-Ta heat shield and ready to go into the evaporator.
Thu Apr 14 11:57:29 2011: The process is on hold until the problem with the screw and the washer of the evaporator is resolved. See ID#15 for more details.
Fri Apr 15 11:22:27 2011: The shorter fully threaded bolts and un-threaded washer are being used.
Fri Apr 15 11:23:30 2011: Target is in the evaporator and ready for the fin diffusion bonding. The evaporator is currently being pumped down.
Fri Apr 15 15:57:40 2011: TGHT @ 20A, Vac @ 4.53e-6 Torr. ISAC Ops will help to start the auto heating process at 18:00hr tonight and begin the auto cooling on April 16 @ 18:00 hr.
Mon Apr 18 10:53:39 2011: Target was heated @ 820A over the weekend and pumped down on Saturday April 16 in the evening. P/S is off and evaporator is vented. (see Attachment#1 for the striptool)
Mon Apr 18 12:16:22 2011: Target fin diffusion bonding is nicely done, and the evaporator shows no sign of any coating. It looks like the problem from the bolts and washers is resolved. |