• 15:10 in chamber
  • S1800019in CR0
• 15:20 roughing pump on
• 15:41 turbo pump on

• 14:50 in chamber
  • S1600644 in CR1
  • S1600645 in CR2
• 15:29 roughing pump on
• 15:35 turbo pump on

• 11:20 in chamber
  • S1600637 in CR1
  • S1600638 in CR2
  • S1600639 in CR3
  • S1600640 in CR4
• 11:28 roughing pump on
• 11:36 turbo pump on

Tried to re-align CR1-4 again

•  
  • S1600633 in CR1
  • S1600634 in CR2
  • S1600635 in CR3
  • S1600636 in CR4
• 18:30  roughing pump on
• 18:40 turbo pump on

• 15:30 in chamber
  • S1600633 in CR1
  • S1600634 in CR2
  • S1600635 in CR3
  • S1600636 in CR4
• 15:45 roughing pump on
• 15:55  turbo pump on

Started measurement for S1600608 in CR3.

Restarted the previous measurement. Notieced N was 6 instead of 8.

• 11:10 in chamber
  • S1600603 in CR1
  • S1600604 in CR2
  • S1600608 in CR3
• 14:20 roughing pump on
• 14:29 turbo pump on

Keeping S1800608 in CR3 to be measured later

• 10:38 in chamber
  • S1600606 in CR1
  • S1600607 in CR2
  • S1600608 in CR3
• 10:55 roughing pump on
• 11:09 turbo pump on

Started the measurement for CR1 and CR2 only. CR3 is an uncoated control sample. CR3 is centered and ready to be measured next

• 10:30 in chamber
  • S1800018 in CR0
• 10:34 roughing pump on
• 10:53 turbo pump on

• 15:27 in chamber
  • S1600603 in CR3
  • S1600604 in CR4
• 15:32 roughing pump on
• 15:42 turbo pump on

• 11:30 in chamber
  • S1800018 in CR0
• 11:40 roughing pump on
• 12:02 turbo pump on

increased noise amplitude gain to 0.6

• 08:04 in chamber
  • S1600601 in CR1
  • S1600602 in CR2
  • S1600603 in CR3
  • S1600604 in CR4
• 08:19 roughing pump on
• 08:24 turbo pump on

• 13:10 in chamber
  • S1800018 in CR0
• 13:17 roughing pump on
• 13:42 turbo pump on

• 13:30 in chamber
  • S1600601 in CR1
  • S1600602 in CR2
  • S1600603 in CR3
  • S1600604 in CR4
• 13:41 roughing pump on
• 13:55 turbo pump on

• 11:40 in chamber
  • S1600606 in CR1
  • S1600607 in CR2
  • S1600608 in CR3
• 11:53 roughing pump on
• 12:00 turbo pump on

• 16:35 in chamber
  • S1800022 in CR0
• 16:46 roughing pump on
• 17:02 turbo pump on

• 17:48 in chamber
  • S1600601 in CR1
  • S1600602 in CR2
  • S1600603 in CR3
  • S1600604 in CR4
• 18:05 roughing pump on
• 18:16 turbo pump on

• 17:40 in chamber
  • S1800021 in CR0
• 17:48 roughing pump on
• 18:05 turbo pump on

• 16:29 in chamber
  • S1800020in CR0
• 16:36 roughing pump on
• 16:52 turbo pump on

• 08:50 in chamber
  • S1800019 in CR0
• 08:57 roughing pump on
• 09:14 turbo pump on

• 14:15 in chamber
  • S1800018 in CR0
• 14:50 roughing pump on
• 15:12 turbo pump on

• 13:35 in chamber
  • S1600645 in CR1
  • S1600646 in CR2
  • S1600647 in CR3
  • S1600648 in CR4
• 13:58 roughing pump on
• 14:05 turbo pump on

• 11:00 in chamber
  • S1600571 in CR1
  • S1600572 in CR2
• 11:10 roughing pump on
• 11:15 turbo pump on

• 11:15 in chamber
  • S1600561 in CR1
  • S1600562 in CR2
  • S1600563 in CR3
  • S1600564 in CR4
• 11:39 roughing pump on
• 11:47 turbo pump on

• 17:50 in chamber
  • S1600641 in CR1
  • S1600642 in CR2
  • S1600643 in CR3
  • S1600644 in CR4
• 18:04 roughing pump on
• 18:13 turbo pump on

• 15:20 in chamber
  • S1800620 in CR0
• 15:30 roughing pump on
• 15:45 turbo pump on

Installed a new HeNe laser for the old chamber cr0. No major alignement was required. The laser mount restored the alinement. Will run a test measurement now.

• 14:30 in chamber
  • S1600571 in CR1
  • S1600572 in CR2
• 14:40 roughing pump on
• 14:50 turbo pump on

• 12:20 pm in chamber
  • S1600561 in CR1
  • S1600562in CR2
  • S1600563 in CR3
  • S160056 in CR4
• 12:20 pm roughing pump on
• 12:26 pm turbo pump on

Aligned CR14 chamber back to 3" disks.

Measurement for S1600600 started at 11:50am

• 19:30 in chamber
  • S1800614 in CR1
  • S1800618 in CR2
  • S1600600 in CR4
• 19:40 roughing pump on
• 19:45 turbo pump on

Started a measurement for CR1 and CR2 only. CR4 is instaled, centered and ready to be measured later

• 11:01 in chamber
  • S1800614 in CR1
  • S1800618 in CR2
  • S1800619 in CR3
  • S1600600 in CR4
• 11:10 roughing pump on
• 11:20 turbo pump on

• 18:01 in chamber
  • S1600594 in CR1
  • S1600594 in CR2
• 18:09 roughing pump on
• 18:13 turbo pump on

• 18:27 in chamber
  • S1600597 in CR1
  • S1600598 in CR2
  • S1600599 in CR3
• 18:28 roughing pump on
• 18:32 turbo pump on

• 16:18 in chamber
  • S1600584 in CR1
  • S1600599 in CR2
  • S1600591 in CR3
• 16:28 roughing pump on
• 16:37 turbo pump on

Something was not quite right with the last measurement.

I wanted to check the QPD spectra (as explained in the procedure T1700089), but diaggui could not get the data, and failed with a "Timeout" error.

So I logged into the cymac and restarted the daqd process. In case you need to do that, in a terminal write

ssh cymac3 [ENTER]
killall daqd [ENTER]
exit [ENTER]

After this operation diaggui was able to read data and the QPD spectra looked ok. 

So I checked that enabling all fout ESD switches and eabling the ESD output did cause the disks to be excited.

Since everything looks normal, I started a new measurement, same parameters as before.

Repeating the previous measurement after correcting the alignement. Did not vent the chamber.

• 21:15 in chamber
  • S1600594 in CR1
  • S1600595in CR2
  • S1600597 in CR3
  • S1600598 in CR4

One of the HeNe lasers died (the one for measuring slots CR2 and CR4). It had no outgoing light when I came in this morning. I connected the laser to another identical power supply. The laser started going on and of and the power supply was making some sparkling noise. I swapped the laser with the test chamber (CR0). No re alignment was required for measurement slots CR1 and CR3. A very slight alignment was done for measuring slots CR2 and CR4 after the laser from the test chamber was installed. So temporary we do not have a setup to measure 2" samples easily. Attaching pictures of the broken laser`s label

• 10:50 am in chamber
  • S1600594 in CR1
  • S1600595in CR2
  • S1600597 in CR3
  • S1600598 in CR4
• 10:50 pm roughing pump on
• 11:00 pm turbo pump on

• 14:18 in chamber
  • S1600541 in CR1
• 14:18 roughing pump on
• 14:23 turbo pump on

• 14:41 in chamber
  • S1800620 in CR0
• 14:45 roughing pump on
• 14:54 turbo pump on

• 14:45 in chamber
  • S1800619 in CR0
• 14:45 roughing pump on
• 14:55 turbo pump on

• 16:20 in chamber
  • S1800618 in CR0
• 16:20 roughing pump on
• 16:30 turbo pump on

• 17:40 pm in chamber
  • S1800617 in CR0
• 17:45 roughing pump on
• 17:57 turbo pump on

• 16:39 in chamber
  • S1600526 in CR1
  • S1600553 in CR2
  • S1600557 in CR3
  • S1600558 in CR4
• 16:39 roughing pump on
• 16:46 turbo pump on

• 09:04 in chamber
  • S1600587 in CR1
  • S1600588 in CR2
  • S1600614 in CR3
• 09.15 roughing pump on
• 09:20 turbo pump on

• 11:00 in chamber
  • S1600609in CR1
  • S1600611 in CR2
  • S1600612 in CR3
  • S1600613 in CR4
• 11:15 roughing pump on
• 11:26 turbo pump on

• 16:57 in chamber
  • S1600528 in CR1
  • S1600531 in CR2
  • S1600543 in CR3
  • S1600544 in CR4
• 16:57 roughing pump on
• 17:06 turbo pump on