• 03:10 pm in chamber
  • S1600587 in CR1
  • S1600588 in CR2
• 03:10 pm roughing pump on
• 03:24 pm turbo pump on

• 01:41 pm in chamber
  • S1800520 in CR0
• 01:41 pm roughing pump on
• 01:59 pm turbo pump on

• 02:27 pm in chamber
  • S1600597 in CR1
  • S1600598 in CR2
  • S1600599 in CR3
  • S1600600 in CR4
• 02:27 pm roughing pump on
• 02:35 pm turbo pump on

• 02:40 pm in chamber
  • S1800516 in CR0
• 02:40 pm roughing pump on
• 02:54 pm turbo pump on

2018-04-04

• 12:09 pm in chamber
  • S1600593 in CR1
  • S1600594 in CR2
  • S1600595 in CR3
  • S1600596 in CR4
• 12:00 pm roughing pump on
• 12:12 pm turbo pump on

   

• 12:30 pm in chamber
  • S1800519 in CR0
• 12:31 pm roughing pump on
• 12:50 pm turbo pump on

2018-05-09

• 01:57 pm in chamber:
  • S1800515 in CR0
• 01:58 pm roughing pump on
• 14:05  turbo pump on

  2018-05-04

• 02:21 pm in chamber:
  • AK_01 in CR1
  • AK_03 in CR3
• 02:25 pm roughing pump on
• 02:44 pm turbo pump on

• 03:30 pm in chamber:
  • S1800516 in CR0
• 03: 35 pm roughing pump on
• 03:42 turbo pump on

2018-05-02

• 17:37 added ND because QPD was oversaturated. Repeating the measurement without venting
  • S1800520 in CR0

2018-05-02

• 10:05 am in chamber
  • S1800520 in CR0
• 10:06 am roughing pump on
• 10:20 am  turbo pump on

2018-05-01

• 16:10 pm in chamber
  • S1800516 in CR0
• 16:20 pm roughing pump on
• 16:40 pm turbo pump on

There was no problem with either the gauges nor the pressure. The IGM took a long time to go on, but finally all pressures looked good. The measurement is also good

2018-04-20

• 3:10pm in chamber
  • S1600577 in CR1
  • S1600580 in CR2
  • S1600582 in CR3
  • S1600585 in CR4
• 3:30pm roughing pump on
• 4:00pm turbo pump on
• 4:30pm It was found IGM gauge didn't start and pressure stopped at 1.8e-3. Gabriel vented chamber and re-pumped it.
• 4:50pm roughing pump on
• 17:05pm turbo pump on
• 17:10 pm pressure 1.7e-3, IGM display " starting"
• We start measurement.

2018-04-14

• 6:40pm in chamber CR0
• 6:45pm roughing pump on
• 6:59pm turbo pump on

2018-04-14

• 6:10pm in chamber
  • S1600577 in CR1
  • S1600580 in CR2
  • S1600582 in CR3
  • S1600585 in CR4
• 6:12pm roughing pump on
• 6:22pm turbo pump on

2018-04-13

• 10:37am in chamber
  • S1600620 in CR1
  • S1600621 in CR2
  • S1600623 in CR3
  • S1600624 in CR4
• 10:41am roughing pump on
• 10:50am turbo pump on

I failed to interface in a reliable way the datalogger with Linux. So i hooked up the four analog outputs of the vacuum gauge controller to the fast ADC. The voltages are read and saved to disk at a reduced rate (16 Hz, throught the epics channels):

X3:CR0-VACUUM_VAC1_OUTMON
X3:CR0-VACUUM_VAC2_OUTMON
X3:CR0-VACUUM_VAC3_OUTMON
X3:CR0-VACUUM_VAC4_OUTMON

A python script running on the workstation (~/pycrime/automation_scripts/vacuum.py) reads the voltage every second and update four epics channels:

X3:CR0-VACUUM_CG0 = convection gauge of test chamber (high pressure gauge)
X3:CR0-VACUUM_IGM0 = ionization gauge of test chamber (low pressure gauge)
X3:CR0-VACUUM_CG1 = convection gauge of main chamber (high pressure gauge)
X3:CR0-VACUUM_IGM1 = ionization gauge of main chamber (low pressure gauge)

See below for an example during pump down (the test chamber is at a too high pressure for the IGM to work, so it returns a bogus number).

Here's an example of venting and pumping down

2018-04-12

• 8:30 am in chamber
  • S1800634 in CR1
• 8:35 am roughing pump on
• 8:45 pm turbo pump on

2018-04-09

• 3:30 pm in chamber
  • S1800634 in CR1
• 3:30 pm roughing pump on
• 3:45 pm turbo pump on

2018-04-07

• 9:10am in chamber
  • S1800634 in CR2
• 9:15am roughing pump on
• 9:25am turbo pump on

2018-04-06

• 8:11am in chamber
  • S1600620 in CR1
  • S1600621 in CR2
  • S1600623 in CR3
  • S1600624 in CR4
• 8:13am roughing pump on
• 8:25am turbo pump on

2018-04-05

• 8:35am in chamber
  • S1800634 in CR2
• 8:39am roughing pump on
• 7:49pm turbo pump on

2018-04-04

• 16:10am in chamber
  • S1600551 in CR1
  • S1600552 in CR2
  • S1600554 in CR3
  • S1600555 in CR4
• 16:30 roughing pump on
• 16:40 turbo pump on

2018-04-03

• 4:12pm in chamber
  • S1600541 in CR1
  • S1600542 in CR2
  • S1600545 in CR3
  • S1600546 in CR4
• 3:30pm roughing pump on
• 4:00pm turbo pump on

2018-04-02

• 9:28am in chamber
  • S1600574 in CR1
  • S1600575 in CR2
• 9:32am roughing pump on
• 9:40am turbo pump on

Started annealing of blank disks: S1600541 S1600542 S1600545 S1600546 S1600551 S1600552 S1600554 S1600555

900C for 9 hours, starting at 10:30am

2018-04-01

• 9:13am in chamber
  • S1600579 in CR1
  • S1600581 in CR2
  • S1600583 in CR3
  • S1600586 in CR4
• 9:20am roughing pump on
• 9:31am turbo pump on

Started annealing of S1600579 S1600581 S1600583 S1600586 at 7:00pm 03/30

• ramp up to 600 C at 100 C/hour
• hold at 600 C for 10 hours
• ramp down at 100 C/hour

2018-03-31

• 8:28am in chamber
  • S1600566 in CR1
  • S1600657 in CR2
  • S1600568 in CR3
  • S1600569 in CR4
• 8:29am roughing pump on
• 8:39am turbo pump on

2018-03-30

• 7:10pm in chamber
  • S1800634 (Zirconia) in CR1
  • S1600519 in CR2
  • S1600522 in CR3
  • S1600565 in CR4
• 7:12pm roughing pump on
• 7:20pm turbo pump on

2018-03-29

• 7:47pm in chamber
  • S1600579 in CR1
  • S1600581 in CR2
  • S1600583 in CR3
  • S1600586 in CR4
• 7:50pm roughing pump on
• 8:00pm turbo pump on

Samples S1600519 S1600522 S1600565 S1600566 S1600567 S1600568 S1600569

• ramp up to 500C at 100C/h
• hold at 500C for 10h
• ramp down at 100C/h

2018-03-29

• 9:15am in chamber
  • S1800615 in CR1
  • S1800616 in CR2
  • S1800617 in CR3
  • S1800618 in CR4
• 9:17am roughing pump on
• 9:25am all pumps fo chamber 0 off, clean air filters off
• 9:25am turbo pump on

2018-03-28

• 3:45pm in chamber
  • S1800611 in CR1
  • S1800612 in CR2
  • S1800613 in CR3
  • S1800614 in CR4
• 3:47pm roughing pump on
• 3:55pm all pumps fo chamber 0 off, clean air filters off
• 4:00pm turbo pump on

Started annealing of S1600579 S1600581 S1600583 S1600586 at 3:25pm

• ramp up to 500 C at 100 C/hour
• hold at 500 C for 10 hours
• ramp down at 100 C/hour

I changed the set point of the test chamber turbo pump to 666 Hz. This was done by setting the "standby rotation speed" to 80% and enabling the standby condition.

At 11:35am, started annealing of ten fused silica wafers (50.8mm / 0.1 mm) [S1800611 S1800612 S1800613 S1800614 S1800615 S1800616 S1800617 S1800618 S1800619 S1800620]

• ramp up to 900 C at 100 C/h
• hold for 9 h
• ramp down at 100 C/h

2018-03-27

• 7:59am in chamber
  • S1600579 in CR1
  • S1600581 in CR2
  • S1600583 in CR3
  • S1600586 in CR4
• 8:00am roughing pump on
• 8:08am turbo pump on

Started annealing of S1600579 S1600581 S1600583 S1600586 at 5:00pm

• ramp up to 400 C at 100 C/hour
• hold at 400 C for 5 hours
• ramp down at 100 C/hour

2018-03-26

• 7:53am in chamber
  • S1600579 in CR1
  • S1600581 in CR2
  • S1600583 in CR3
  • S1600586 in CR4
• 7:55am roughing pump on
• 8:05am turbo pump on

2018-03-25

• 5:15pm in chamber
  • S1600577 in CR1
  • S1600580 in CR2
  • S1600582 in CR3
  • S1600585 in CR4
• 5:18pm roughing pump on
• 5:26 turbo pump on

Started annealing of S1600579 S1600581 S1600583 S1600586 at 5:00pm

• ramp up to 300 C at 100 C/hour
• hold at 300 C for 5 hours
• ramp down at 100 C/hour

2018-03-24

• 5:10pm in chamber
  • S1800515 in CR1
  • S1800519 in CR2
• 5:13pm roughing pump on
• 5:20pm turbo pump on

Started annealing of S1600577 S1600580 S1600582 S1600585 at 5pm

ramp up to 600C at 100C/h

hold at 600C for 10 h

ramp down at 100C/h

2018-03-16

• 11:14am in chamber
  • S1600620 in CR1
  • S1600621 in CR2
  • S1600623 in CR3
  • S1600624 in CR4
• 11:14am roughing pump on
• 11:24am turbo pump on

2018-03-14

• 4:55pm in chamber
  • S1600589 in CR1
  • S1600590 in CR2
  • S1600610 in CR3
  • S1600614 in CR4
• 4:57pm roughing pump on
• 5:06pm turbo pump on

2018-03-14

• 8:37am in chamber
  • S1600577 in CR1
  • S1600580 in CR2
  • S1600582 in CR3
  • S1600585 in CR4
• 8:40am roughing pump on
• 8:50am turbo pump on

2018-03-13

• 5:15pm in chamber
  • S1600609 in CR1
  • S1600611 in CR2
  • S1600612 in CR3
  • S1600613 in CR4
• 5:20pm roughing pump on
• 5:34pm turbo pump on

2018-03-12

• 3:38pm in chamber
  • S1600589 in CR1
  • S1600590 in CR2
• 3:40pm roughing pump on
• 3:47pm turbo pump on

2018-03-12

• 8:35am in chamber
  • S1600577 in CR1
  • S1600580 in CR2
  • S1600582 in CR3
  • S1600585 in CR4
• 8:37am roughing pump on
• 8:45am turbo pump on

2018-03-10

• 5:34pm in chamber
  • S1600589 in CR1
  • S1600590 in CR2
• 5:38pm roughing pump on
• 5:48pm turbo pump on