KAGRA Pcal-Y updates (2025/11/27)
Workers: Dan Chen, Shingo Hido
We performed monthly Pcal-Y calibration on 2025/11/27.
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 | 0.98996 | 0.99001 | 0.00006 |
| K1:CAL-PCAL_EY_1_OE_T_SET | 0.98996 | 0.99001 | 0.00006 |
| K1:CAL-PCAL_EY_1_PD_BG_RX_V_SET | -0.00482 | -0.00483 | -0.00001 |
| K1:CAL-PCAL_EY_1_PD_BG_TX_V_SET | 0.02777 | 0.02263 | -0.00514 |
| K1:CAL-PCAL_EY_1_RX_V_R_SET | 0.50334 | 0.50319 | -0.00016 |
| K1:CAL-PCAL_EY_2_INJ_V_GAIN | 0.51215 | 0.51359 | 0.00144 |
| K1:CAL-PCAL_EY_2_OE_R_SET | 0.98537 | 0.98589 | 0.00052 |
| K1:CAL-PCAL_EY_2_OE_T_SET | 0.98537 | 0.98589 | 0.00052 |
| K1:CAL-PCAL_EY_2_PD_BG_TX_V_SET | 0.03048 | 0.02549 | -0.00499 |
| K1:CAL-PCAL_EY_2_RX_V_R_SET | 0.49666 | 0.49681 | 0.00016 |
| K1:CAL-PCAL_EY_WSK_PER_RX_SET | 1.84103 | 1.84186 | 0.00083 |
| K1:CAL-PCAL_EY_WSK_PER_TX1_SET | 0.33342 | 0.33344 | 0.00002 |
| K1:CAL-PCAL_EY_WSK_PER_TX2_SET | 0.90454 | 0.90362 | -0.00092 |
