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Participants: | Participants: KYamamoto, June-Gyu, Marc, Sungho, Aso, Matteo |
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1. | 1. Paper on coating (Mori, Nakayama): Ti doped (LIGO) and undoped (KAGRA) SiO2-Tantala stacks * coating thermal noise seems higher than expected value * internal review by coauthors being done at the moment * will be circulated to MIR subgroup in the next weeks 1. Planned presentation of the measurements contained in the paper at the next LVK 1. Measurement of Q-value for KAGRA sapphire mirrors * CARM-DARM as readout sensors, magnets as actuators * T= 80K for ETMX and T=250K for all the others * all Q value are between 1e4 to 1e5, seems low compared to expected value of 1e8 |
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* Coating update from KYamamoto | * Coating and Q-measurement update from KYamamoto |
MIR Meeting on 2023/07/05 15:00 - 16:00
Participants: KYamamoto, June-Gyu, Marc, Sungho, Aso, Matteo
Next meeting
2023 ?? ??, 1?:00 - 1?:00
Minutes
Paper on coating (Mori, Nakayama): Ti doped (LIGO) and undoped (KAGRA) SiO2-Tantala stacks
- coating thermal noise seems higher than expected value
- internal review by coauthors being done at the moment
- will be circulated to MIR subgroup in the next weeks
- Planned presentation of the measurements contained in the paper at the next LVK
- Measurement of Q-value for KAGRA sapphire mirrors
- CARM-DARM as readout sensors, magnets as actuators
- T= 80K for ETMX and T=250K for all the others
- all Q value are between 1e4 to 1e5, seems low compared to expected value of 1e8
Agenda
- Coating and Q-measurement update from KYamamoto
- Polishing update from Aso
- MIR related paper plan discussion