Dripta & I went to the EX to do a PCAL End station measurement followed by a TX module maintenance.
Obligitory Beam spot pic.
We followed T1500062-V21, with out much deviation until the measurements were finished. We did continue on with a TX module maintenance that we have not yet finished yet. Our plan is to go back tomorrow to finish the OLTF Optical Follower Servo measurement. We did leave the LASER HAZARD STATUS at EX in SAFE.
The ES measurement went smoothly.
Beam spot after ES measurement & TXmodule maintence!
python generate_measurement_data.py --WS PS4 --date 2025-11-03
Reading in config file from python file in scripts
../../../Common/O4PSparams.yaml
PS4 rho, kappa, u_rel on 2025-11-03 corrected to ES temperature 299.5 K :
-4.7017855975867215 -0.0002694340454223 2.686163396659873e-05
Copying the scripts into tD directory...
Connected to h1daqnds1
martel run
reading data at start_time: 1453573090
reading data at start_time: 1453573550
reading data at start_time: 1453573950
reading data at start_time: 1453574260
reading data at start_time: 1453574700
reading data at start_time: 1453575050
reading data at start_time: 1453575167
reading data at start_time: 1453575840
reading data at start_time: 1453576170
Ratios: -0.4588903912882054 -0.46880057152484483
writing nds2 data to files
finishing writing
Background Values:
bg1 = 9.720121; Background of TX when WS is at TX
bg2 = 4.686352; Background of WS when WS is at TX
bg3 = 9.770692; Background of TX when WS is at RX
bg4 = 4.628189; Background of WS when WS is at RX
bg5 = 9.797052; Background of TX
bg6 = 0.801247; Background of RX
The uncertainty reported below are Relative Standard Deviation in percent
Intermediate Ratios
RatioWS_TX_it = -0.458890;
RatioWS_TX_ot = -0.468801;
RatioWS_TX_ir = -0.453881;
RatioWS_TX_or = -0.463503;
RatioWS_TX_it_unc = 0.073150;
RatioWS_TX_ot_unc = 0.076593;
RatioWS_TX_ir_unc = 0.078168;
RatioWS_TX_or_unc = 0.089042;
Optical Efficiency
OE_Inner_beam = 0.989262;
OE_Outer_beam = 0.989063;
Weighted_Optical_Efficiency = 0.989162;
OE_Inner_beam_unc = 0.049361;
OE_Outer_beam_unc = 0.054133;
Weighted_Optical_Efficiency_unc = 0.073259;
Martel Voltage fit:
Gradient = 1636.767509;
Intercept = 0.537748;
Power Imbalance = 0.978861;
Endstation Power sensors to WS ratios::
Ratio_WS_TX = -1.077945;
Ratio_WS_RX = -1.393587;
Ratio_WS_TX_unc = 0.045600;
Ratio_WS_RX_unc = 0.039824;
=============================================================
============= Values for Force Coefficients =================
=============================================================
Key Pcal Values :
GS = -5.135100; Gold Standard Value in (V/W)
WS = -4.701786; Working Standard Value
costheta = 0.988362; Angle of incidence
c = 299792458.000000; Speed of Light
End Station Values :
TXWS = -1.077945; Tx to WS Rel responsivity (V/V)
sigma_TXWS = 0.000492; Uncertainity of Tx to WS Rel responsivity (V/V)
RXWS = -1.393587; Rx to WS Rel responsivity (V/V)
sigma_RXWS = 0.000555; Uncertainity of Rx to WS Rel responsivity (V/V)
e = 0.989162; Optical Efficiency
sigma_e = 0.000725; Uncertainity in Optical Efficiency
Martel Voltage fit :
Martel_gradient = 1636.767509; Martel to output channel (C/V)
Martel_intercept = 0.537748; Intercept of fit of Martel to output (C/V)
Power Loss Apportion :
beta = 0.998895; Ratio between input and output (Beta)
E_T = 0.994017; TX Optical efficiency
sigma_E_T = 0.000364; Uncertainity in TX Optical efficiency
E_R = 0.995117; RX Optical Efficiency
sigma_E_R = 0.000365; Uncertainity in RX Optical efficiency
Force Coefficients :
FC_TxPD = 7.900822e-13; TxPD Force Coefficient
FC_RxPD = 6.178276e-13; RxPD Force Coefficient
sigma_FC_TxPD = 4.646331e-16; TxPD Force Coefficient
sigma_FC_RxPD = 3.364222e-16; RxPD Force Coefficient
data written to ../../measurements/LHO_EndX/tD20260127/
