I performed the tapping test around IMC area(mainly beam duct).

From left Figure
DARM (red:Tapping, bule : silent)
ACC at the beam duct near the MCF chamber (and its coherence with DARM)
ACC at the beam duct near the MCE chamber (and its coherence with DARM)
IMMT1 trans QPD1 PITCH (and its coherence with DARM)
IMMT1 trans QPD1 YAW (and its coherence with DARM)

You can find the figures in
https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/klog/klog24214

Fig.1. tapping the beam duct between MCF and MCE chamber (close to the MCF chamber)
Fig.2. tapping the beam duct between PSL room and MCF chamber
Fig.3. tapping the beam duct between MCF and MCE chamber (close to the vacuum pump)
Fig.4. tapping the beam duct between MCF and MCE chamber (close to the MCE chamber)
Fig.5. tapping the beam duct between MCF and IFI chamber (MCF side)

As you can see, large bumps appeared in DARM (~200 Hz) when we perform the tapping test.
No coherence in the accelerometers at the beam duct between MCF and MCE chamber.
Several coherence in the IMMT1 trans QPD1 PIT and YAW.
The vibration around IMC area (including the MCF-MCE beam duct) may affect to the beam jitter. (Through MCF chamber??)

No significant change was detected when I tapped to the beam duct between PR2 and PR3 chamber.