M.Yamamoto

On June 28, under FPMI lock.
We tried to excite the elastic vibration mode of ETMY and measure its peak frequency and decay time.
As a result, we confirmed the resonance which was estimated to be derived from five elastic vibration modes.

We also confirmed that each resonance decayed within about 0.1 to a few seconds after the excitation signal was turned off.
Q-values determined from the decay of the resonances are shown here.

https://klog.icrr.u-tokyo.ac.jp/osl/?r=25771　Brief report by Mr.Komori.

Q-value were recorded ten times for each resonance, and the average and standard error of Q-value were calculated

(however, 51.0367 kHz was recorded only nine times).
 I will upload the detailed data of to JGW-doc later.
 
Attention:Due to an analytical error, the Q values of ITMX and ITMY measured in the past may be slightly different(at most twice as much).
So I will reload the corrected data on k-log later.