• KAGRA
• Subgroups
• PEM
• MAR2020
• Acoustic_result

Summary of results for the acoustic injection

• Yokozawa injected the better interferometer condition
• Washimi-san evaluated the noise projection

Acoustic injection to REFL table

• Date : 7th Mar. 2020

• klog13382

• After changing the sampling rate of the portable PEMs
• IMC output power 3.4W
• REFL PDA1DC ~7mW
• injection time : 1267565800-1267565900
• silent run : 1267565900-1267566200

• Results : 13415

  • There seems to be several peaks
    • 250Hz, 265Hz, 274Hz, 276Hz, 279Hz, 282Hz, 296Hz
      • Hint in the ISS table(QPD1 pit)?
    • 320Hz(floor), 332Hz,
      • Hint in the ISS table(QPD1 pit)?
    • 350-370Hz, 394Hz
      • PR3 oplev yaw?
    • 510-530Hz
      • Similar behavior in the IMC refl accelerometer (Hint in the IMC refl)

Acoustic injection to POP table amd PR2

• Date : 11th Mar. 2020

• klog13458

• IMC output power 3.0W
• REFL PDA1DC ~8mW
• injection time : 1267904400 - 1267904500
• silent run : 1267904600-1256904700

• Results : klog13464

  • 75Hz
  • 330-400Hz
  • 710-720Hz
  • We don't have a hint for them