KAGRA Pcal-Y updates (2025/09/25)
Workers: Ryutaro Takahashi, Hirotaka Yuzurihara, Dan Chen
We performed monthly Pcal-Y calibration on 2025/09/25.
After the calibration, we updated EPICS parameters related to the Pcal-Y system. No issues were found.
| EPICS Key | Before | After | Δ (After − Before) |
|---|---|---|---|
| K1:CAL-PCAL_EY_1_OE_R_SET | 0.99032 | 0.99019 | -0.00014 |
| K1:CAL-PCAL_EY_1_OE_T_SET | 0.99032 | 0.99019 | -0.00014 |
| K1:CAL-PCAL_EY_1_PD_BG_RX_V_SET | -0.00492 | -0.00483 | 0.00009 |
| K1:CAL-PCAL_EY_1_PD_BG_TX_V_SET | 0.02746 | 0.02015 | -0.00731 |
| K1:CAL-PCAL_EY_1_RX_V_R_SET | 0.50326 | 0.50347 | 0.00021 |
| K1:CAL-PCAL_EY_2_INJ_V_GAIN | 0.51474 | 0.51409 | -0.00065 |
| K1:CAL-PCAL_EY_2_OE_R_SET | 0.98563 | 0.98537 | -0.00026 |
| K1:CAL-PCAL_EY_2_OE_T_SET | 0.98563 | 0.98537 | -0.00026 |
| K1:CAL-PCAL_EY_2_PD_BG_TX_V_SET | 0.03024 | 0.02301 | -0.00723 |
| K1:CAL-PCAL_EY_2_RX_V_R_SET | 0.49674 | 0.49653 | -0.00021 |
| K1:CAL-PCAL_EY_WSK_PER_RX_SET | 1.84047 | 1.84138 | 0.00090 |
| K1:CAL-PCAL_EY_WSK_PER_TX1_SET | 0.33311 | 0.33311 | -0.00000 |
| K1:CAL-PCAL_EY_WSK_PER_TX2_SET | 0.90012 | 0.90083 | 0.00071 |
