Agenda/Minutes of the VIS Meeting on 2019/11/8
2019/11/8 14:00 - 16:00
Participants: Takahashi, Fujii, Hirata, Tanaka, Sato, Ishizaki, Aso, Terrence, Lucia, Okutomi, Fabian
Progress report
Type-A
Past week report
- Recovery of GAS filter drift due to the temperature change. The heater control of chambers is planed.
- Recovery of thermometer for the BF.
Plan for coming weeks
Type B
Past week report
The temperature has drifted in the BS clean booth. It has changed 0.8 degrees since October 10th. The top filter DC control signal is abovr 23,000 counts. See klog entry 11423.
Plan for coming weeks
The interferometer is the priority but we should continue with offline work:
- Define new Guardian states for calm-down and obervation phases.
- For the GAS filters DC control we still need to roll-off the filters at high frequencies in order to achive a suitable noise floor.
Type-Bp
Past week report
Fabian changed the orientation of the mirror in misaligned state again. The beam wasn't really going into the beam dump according to Kokeyama-san. After the change it's very close to where it was before. See klog entry 11377.
Plan for coming weeks
OMMT & OSTM (Takahashi)
Past week report
- Finished the assembly of OSTM suspension with the dummy mirror.
- Measured spectrum and transfer functions using the OSEMs.
Plan for coming weeks
VIS electronics
Past week report
Plan for coming weeks
Other site works
Safety
- Incidents:
Discussion
- Status of GAS filter modification.
Travel Plans
- Travel (Week of 11/11):
- Takahashi:
- Sato: 14,15(Kashiwa)
- Hirata:
- Shoda:
- Fujii:
- Tanaka:
- Travel (Week of 11/18):
- Takahashi:
- Sato:
- Hirata:
- Shoda:
- Fujii:
- Tanaka:
Next meeting
On 2019/11/15(Fri)