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⇤ ← Revision 1 as of 2019-07-16 09:14:42
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← Revision 2 as of 2019-07-16 18:14:58 ⇥
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---- == Today's work plan: 2019/7/16 1PM - 2019/7/17 1PM == Commissioning leader: Miyakawa (July 16th), Aso (July 17th) === Afternoon === * ETMY !L2Angle decoupling (Yamada, Nakano) * Check the schematic of the High Power Coil Driver (Fabian, Terrence) * Fix the CARM board boost issue (Enomoto) * Design a filter for DARM (Stefan) === Evening === * Y-arm mass lock trial (SB, EY, MN, et al) === Morning === * DGS maintenance * Power supply replacement of SR3 (Yamamoto) * ITM T-cam computer replacement (Yokozawa) * OMC extraction (Aso, et al) * Check dimensions around OSTM (Takahashi) ---- == Standing issues == * Y-arm lock * ETMY suspension control * !L2Angle decoupling * ETMY coil driver range increase * CARM board boost does not engage * DRMI lock stability * Model HOM-PHD signal distortion (Aso, Kokeyama) * Search for better Gouy phase in PRC * Initial alignment automation * Type-A related * Add aligned state in Guardian (Kokeyama) * Type-B related * SR3 Yaw motion is too large * Different ground level between the IO chasis and the AA filter box may be the reason * Replace the DC power supply * BS IM2TM transfer function measurement * Type-C related * Check dimensions around the OSTM * OSEM characterization for OSTM * OMC * Extract OMC * Check the OMC on the AS table * Laser safety * Debug the laser safety guardian ------ |
2019/7/16(Tue.)
Schedule
- ~7/31: Trial for DRMI with polarization.
- 7/6~: Trial for mass lock
- ITMX
- ETMX
- ITMY
- 7/4: Turbo pump on
- ETMY
- 7/4: Turbo pump on
- Long term:
4/22-5/31: Yarm commissioning
5/27-6/30: DRMI commissioning
- 7/1-8/9: FPMI/DRFPMI commissioning
- 8/12-10/4: ASC
- 10/7-11/15: Post Commissioning
- 11/18-12/13: Noise hunting
Note
Night work
Weekend
Report of work
- OMC: Beam spot on mirror moved. One (or more) of the mirrors seems to be misaligned. OMC will be pulled tomorrow.
- Y arm: 20dB suppression on LSC below 1Hz was seen on mass lock trial.
- Opleve control was slightly changed from IM control to TM control.
- High frequency is limited by noise. Needs high power coil driver modification.
- Type B: H2 on SR3 was noisy, but needs more time to investigate it.
- 80mHz peak was reduced by changing damping setting.
- RTPC for ASC and ALS were dead somehow.
Work plan
Today's work plan: 2019/7/16 1PM - 2019/7/17 1PM
Commissioning leader: Miyakawa (July 16th), Aso (July 17th)
Afternoon
ETMY L2Angle decoupling (Yamada, Nakano)
- Check the schematic of the High Power Coil Driver (Fabian, Terrence)
- Fix the CARM board boost issue (Enomoto)
- Design a filter for DARM (Stefan)
Evening
- Y-arm mass lock trial (SB, EY, MN, et al)
Morning
- DGS maintenance
- Power supply replacement of SR3 (Yamamoto)
- ITM T-cam computer replacement (Yokozawa)
- OMC extraction (Aso, et al)
- Check dimensions around OSTM (Takahashi)
Standing issues
- Y-arm lock
- ETMY suspension control
L2Angle decoupling
- ETMY coil driver range increase
- CARM board boost does not engage
- ETMY suspension control
- DRMI lock stability
- Model HOM-PHD signal distortion (Aso, Kokeyama)
- Search for better Gouy phase in PRC
- Initial alignment automation
- Type-A related
- Add aligned state in Guardian (Kokeyama)
- Type-B related
- SR3 Yaw motion is too large
- Different ground level between the IO chasis and the AA filter box may be the reason
- Replace the DC power supply
- BS IM2TM transfer function measurement
- SR3 Yaw motion is too large
- Type-C related
- Check dimensions around the OSTM
- OSEM characterization for OSTM
- OMC
- Extract OMC
- Check the OMC on the AS table
- Laser safety
- Debug the laser safety guardian