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| = Cleaning of the suspended test mass = |
= Cleaning of the suspended test mass (Dec 2009) = |
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| === - Visibility measurement === === - Finesse measurement === == Overview of the plan == * '''We plan for the vent from 7th Dec to 11th Dec in 2009. ''' |
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| == Overview of the plan == | * '''Preparation ''' * wiping preparation * wiping practice * aux beam as a reference....align to overlap in vacuum * Input PZT (strain gauge) /HV off/OMC PZT HV * update snap shots: sus, strain gauges,IOO, OMC....etc (OMC has no strain gauges) * recenter: IP-ANG-POS, oplevs..... at full lock * test drive crane drives * clean clean-tools again * keep eyes on particle counter: abort over 10,000 * cut some viton tips for spare earthquake stop screws * '''Monday:''' * Vent / Open ETMX if possible * Take pictures before touching * Record positions of the mirrors (OSEMs/OPLEVs) |
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| We plan for the vent from 7th Dec to 11th Dec in 2009. | * '''Tuesday:''' * ETMX wipe * ETMY wipe |
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| - wiping preparation - wiping practice - aux beam as a reference - Input PZT (strain gauge) /HV off/OMC PZT HV | * '''~ Wednessday:''' * IPANG beam * ITMX position (pushing screws) * ITMX BB leveling * measure the distance of the breadboards * check of the optics in the chambers * ITMY wipe * ITMX wipe |
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| Monday - Vent | * '''Thursday:''' - Evacuation |
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| Tuesday-Wednessday - Take pictures before touching - position of the mirrors (OSEMs/OPLEVs) - Wiping Practice ETMX ETMY ITMY ITMX (hardest) - IPANG beam - ITMX position (pushing screws) - ITMX BB leveling - measure the distance of the breadboards - check of the optics in the chambers Thursday - Evacuation Friday |
* '''Friday: ''' |
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* '''Friday, 4 Dec: ''' * Practice cutting viton, so we can get the correct sizes if we need to replace stops. (Jenne) * Recenter all of our pointing PDs (oplevs and IP_POS, IP_ANG). * Update snapshots of all MEDM screens that have alignment information. * Move extraneous equipment around chamber doors: Make sure we have clear access (esp. seismometers need moving) * '''Monday: ''' * Before venting, check that all the recentering done on Friday is still good. If not, redo. * Vent * During vent, practice drag wiping a spare random optic (maybe a 2" CVI optic?) * Open ETMX * Take photos of ETMX before touching * Close up ETMX with light doors for the night * '''Tuesday: ''' * '''Wednesday: ''' * '''Thursday: ''' * '''Friday: ''' |
Cleaning of the suspended test mass (Dec 2009)
Motivation
Whether contamination or not
Measurements before the vent
- Visibility measurement
- Finesse measurement
Overview of the plan
We plan for the vent from 7th Dec to 11th Dec in 2009.
Preparation
- wiping preparation
- wiping practice
- aux beam as a reference....align to overlap in vacuum
- Input PZT (strain gauge) /HV off/OMC PZT HV
- update snap shots: sus, strain gauges,IOO, OMC....etc (OMC has no strain gauges)
- recenter: IP-ANG-POS, oplevs..... at full lock
- test drive crane drives
- clean clean-tools again
- keep eyes on particle counter: abort over 10,000
- cut some viton tips for spare earthquake stop screws
Monday:
- Vent / Open ETMX if possible
- Take pictures before touching
- Record positions of the mirrors (OSEMs/OPLEVs)
Tuesday:
- ETMX wipe
- ETMY wipe
~ Wednessday:
- IPANG beam
- ITMX position (pushing screws)
- ITMX BB leveling
- measure the distance of the breadboards
- check of the optics in the chambers
- ITMY wipe
- ITMX wipe
Thursday: - Evacuation
Friday:
Detailed plan
Friday, 4 Dec:
- Practice cutting viton, so we can get the correct sizes if we need to replace stops. (Jenne)
- Recenter all of our pointing PDs (oplevs and IP_POS, IP_ANG).
- Update snapshots of all MEDM screens that have alignment information.
- Move extraneous equipment around chamber doors: Make sure we have clear access (esp. seismometers need moving)
Monday:
- Before venting, check that all the recentering done on Friday is still good. If not, redo.
- Vent
- During vent, practice drag wiping a spare random optic (maybe a 2" CVI optic?)
- Open ETMX
- Take photos of ETMX before touching
- Close up ETMX with light doors for the night
Tuesday:
Wednesday:
Thursday:
Friday: