Differences between revisions 92 and 93

Vent plans

Tasks for Vent of Nov 2018

Primary objective - carry out upgrade of the vacuum control system to Acromag
1. Do we have necessary hardware?
2. Steve has acquired some test Serial->Ethernet converter, needs to be checked and interfaced.
Secondary tasks - depends on how many chambers we want to open:
1. Fix clipping situation in Y arm.
2. ETMX suspension cage yaw rotation.
3. SRC length adjustment to allow Signal-Recycled locking.
4. Clean arm cavity optics with first contact.
5. Commission existing OMC.

Installing new RC folding mirrors, PR3 and SR3 (we need to get the actual optics + new Tip-Tilt suspension design)
Flip existing PR2 and SR2
Installation of Ruby standoffs for selected optics (we need to get a better magnet gluing fixture ready)
MC1 suspension inspection and fixing
ITMX magnet re-gluing
Baffling (?)
Installation of steering mirrors to facilitate viewing of optic faces with GigE cameras
FC cleaning

(1) Dichroic mirror replacements for PR3 and SR3

spec in DCC
quotes:
- ATF
- Laseroptik (final)
  - note: 2 deg wedge quote has Fused Silica grade F = 5 ppm homogeneity & micro roughness 0.3 nm RMS, Rana OKed both, 3 wks delivery, Jamie takes care of ordering
Optical table layout needs to be modified
optics in hand
phase map of mirror, in and out of tip-tilt mounts
- what resolution do we need? Need to measure curvature.

Suresh is going to LHO April 15-25 for assembly/shipping of tip-tilts
tip-tilts:
- tip-tilts from LHO
- bake
- assemble
- add mirrors
- level
in-vac cables (quadrapuses)
- ship parts to RND Cables
- place order with RND Cables
- bake
electronics:
- gather components:
  - DAC
  - anti-image filters
  - dewhite filters
  - coil drivers
  - eurocrate
  - cables
- install
- test in DAQ

(3) Black glass beam dumps

(4) OSEM mount screws

(5) New periscope plate

(6) Cavity scattering measurements? (Jan)

(7) Review IP{ANG,POS} alignment/closeup proceedure

-  ⇤ ← Revision 92 as of 2018-10-24 00:40:16 → 
  Size: 3908
  Editor: GautamvenugopalanATligoDOTorg
  Comment:
+   ← Revision 93 as of 2018-10-24 00:41:28 → ⇥
  Size: 3938
  Editor: GautamvenugopalanATligoDOTorg
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 10:
-. Fix clipping situation in Y arm.
   1. ETMX suspension cage yaw rotation.
   2. SRC length adjustment to allow [[https://nodus.ligo.caltech.edu:8081/40m/14164|Signal-Recycled]] locking.
   3. Clean arm cavity optics with first contact.
+. Fix clipping situation in Y arm.
   2. ETMX suspension cage yaw rotation.
   3. SRC length adjustment to allow [[https://nodus.ligo.caltech.edu:8081/40m/14164|Signal-Recycled]] locking.
   4. Clean arm cavity optics with first contact.
   5. Commission existing OMC.