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Laser Power Test

Measured sum power:
  • SX 43.256
  • DX 48.631

SIDE L1 L2 L3
DX - Field cam 15.50 18.06 18.17
DX - Calorimeter 15.59 17.06 15.63
SX - Field cam 14.71 16.48 13.48
SX - Calorimeter 14.98 16.84 13.60
  • Power so far OK and stable for 5+h.
  • SX difference for DX L2+L3 currrently accepted.

Pyr or QC test

9:00: we start DT operations, cal unit setup, LgswUnitSx started.

SX HEXA 3.37 0.74 -0.88 128 -200
SX BOARD -74.31 -50.54 52.0
We first acquire a data serie w/ Pyramid Bin4 as TT, 1" disturb. We move manually Z stage to 45mm to be optimally conjugated to LGSW. We let TS to converge (faster at 45mm) then we run autogain:

20160514_164400_AutoG_PyrBin4.png

TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160514_164452 2.3,0.4,0.3 T 102.983 114.868 20151212_233600 -1 T F MAG15
20160514_164512 2.3,0.4,0.3 T 125.281 105.203 20151212_233600 -1 T F skip frame>50%
20160514_164529 2.3,0.4,0.3 T nan 42.9404 20151212_233600 -1 T F skip frame>50%
20160514_164547 2.3,0.4,0.3 T nan 43.9453 20151212_233600 -1 T F skip frame>50%
20160514_164813 2.3,0.4,0.3 T 110.215 72.4644 20151212_233600 -1 T F
20160514_164844 2.3,0.4,0.3 T 105.906 72.4708 20151212_233600 -1 T F
20160514_164903 2.3,0.4,0.3 T 108.133 72.4935 20151212_233600 -1 T F
20160514_164921 2.3,0.4,0.3 T 108.526 72.5867 20151212_233600 -1 T F
20160514_170001 2.3,0.4,0.3 T 152.696 72.0409 20151212_233600 -1 T F MAG16
20160514_170018 2.3,0.4,0.3 T 169.89 74.1348 20151212_233600 -1 T F
20160514_170037 2.3,0.4,0.3 T 261.543 78.7679 20151212_233600 -1 T F
20160514_170056 2.3,0.4,0.3 T 183.282 77.4359 20151212_233600 -1 T F
20160514_170327 2.3,0.4,0.3 T 370.17 78.8706 20151212_233600 -1 T F MAG17
20160514_170407 2.3,0.4,0.3 T 419.97 81.2282 20151212_233600 -1 T F
20160514_170428 2.3,0.4,0.3 T 205.523 73.4653 20151212_233600 -1 T F
20160514_170447 2.3,0.4,0.3 T 296.646 76.1698 20151212_233600 -1 T F
Then we move to QC, also here we run first autogain (first 4 measurement have dafault gain!). The MAG15 measurements have been taken with Z stage at 52mm.

20160514_172700_AutoG_QC.png

TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160514_172134 0.1,0.4,0.3 T 787.662 82.6615 20160312_032600 -1 T F MAG15
20160514_172154 0.1,0.4,0.3 T 830.744 82.5431 20160312_032600 -1 T F
20160514_172217 0.1,0.4,0.3 T 803.493 82.4838 20160312_032600 -1 T F
20160514_172235 0.1,0.4,0.3 T 1052.33 84.0957 20160312_032600 -1 T F
20160514_172656 0.23,0.4,0.3 T 771.424 84.9124 20160312_032600 -1 T F
20160514_172757 0.23,0.4,0.3 T 792.812 85.351 20160312_032600 -1 T F
20160514_172820 0.23,0.4,0.3 T 779.835 84.5888 20160312_032600 -1 T F
20160514_172840 0.23,0.4,0.3 T 767.819 84.919 20160312_032600 -1 T F
20160514_173942 0.23,0.4,0.3 T 998.724 81.7679 20160312_032600 -1 T F MAG16
20160514_174014 0.23,0.4,0.3 T 1018.22 82.8469 20160312_032600 -1 T F
20160514_174049 0.23,0.4,0.3 T 1014.92 82.779 20160312_032600 -1 T F
20160514_174115 0.23,0.4,0.3 T 980.331 82.7622 20160312_032600 -1 T F
20160514_174633 0.23,0.4,0.3 T 1299.61 81.8337 20160312_032600 -1 T F MAG17
20160514_174653 0.23,0.4,0.3 T 1240.34 81.3422 20160312_032600 -1 T F
20160514_174712 0.23,0.4,0.3 T 1230.41 81.3812 20160312_032600 -1 T F
20160514_174730 0.23,0.4,0.3 T 1244.69 82.138 20160312_032600 -1 T F
We check again QC autogain with MAG17 and it give compatible results (best gain 0.2). Results of the analysis:

20160514_pyr_vs_apd.png

SX FW2 best working position

11:00: This analysis was already done in March 16 run. The best FW2 position found was -0.004. We put LUCI1 rotator at 0deg. We defocus the Z stage to 32mm equivalent to 2". We then close on QC w/o TS, we move FW2 by few steps around working position and we measure the QC overall flux:

TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160514_182012 0.2,0.4,0.3 T 707.052 49.3391 20160312_032600 -1 T F
20160514_182231 0.2,0.4,0.3 T 731.182 51.6073 20160312_032600 -1 T F
20160514_182322 0.2,0.4,0.3 T 709.933 49.0725 20160312_032600 -1 T F
20160514_182523 0.2,0.4,0.3 T 718.02 47.9894 20160312_032600 -1 T F
20160514_183031 0.2,0.4,0.3 T 780.325 51.748 20160312_032600 -1 T F
20160514_183211 0.2,0.4,0.3 T 814.125 52.5407 20160312_032600 -1 T F
20160514_183253 0.2,0.4,0.3 T 778.582 51.5436 20160312_032600 -1 T F
20160514_183334 0.2,0.4,0.3 T 884.121 53.3344 20160312_032600 -1 T F
20160514_183426 0.2,0.4,0.3 T 878.138 53.8236 20160312_032600 -1 T F
20160514_183554 0.2,0.4,0.3 T 1182.53 73.6287 20160312_032600 -1 T F
20160514_183703 0.2,0.4,0.3 T 713.768 48.3842 20160312_032600 -1 T F
20160514_183810 0.2,0.4,0.3 T 671.689 48.1801 20160312_032600 -1 T F
20160514_183925 0.2,0.4,0.3 T 691.043 47.8563 20160312_032600 -1 T F
20160514_183956 0.2,0.4,0.3 T 733.813 48.4166 20160312_032600 -1 T F
20160514_184039 0.2,0.4,0.3 T 703.795 49.3753 20160312_032600 -1 T F
20160514_184131 0.2,0.4,0.3 T 855.133 99.8316 20160312_032600 -1 T F
20160514_184212 0.2,0.4,0.3 T 975.561 170.588 20160312_032600 -1 T F
20160514_APDcounts_vs_FW2_sx.png

FW2 repeatability

11:45: we also check for FW2 homing and positioning repeatability. So we close on QC w/o TS. We defocus Z stage to 32mm. We pause the NGS and home FW2. This is the reference position. Then we move FW2 to pos1 (empty) and then we home it:

TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160514_185004 0.2,0.4,0.3 T 475.667 39.0804 20160312_032600 -1 T F ref pos
20160514_185152 0,0.4,0.3 T 535.442 38.3322 20160312_032600 -1 T F 1st home
20160514_185330 0,0.4,0.3 T 442.297 38.5302 20160312_032600 -1 T F 2nd home
20160514_185455 0,0.4,0.3 T 779.024 38.2694 20160312_032600 -1 T F ??
20160514_185533 0,0.4,0.3 T 437.338 37.9327 20160312_032600 -1 T F 3rd home

Then we do the same for the position repeatability: we take a first reference positon and then we move back and forth FW2 between pos1 (empty) and pos0 (qc mirror):
TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160514_185233 0,0.4,0.3 T 444.972 39.1443 20160312_032600 -1 T F ref pos
20160514_185614 0,0.4,0.3 T 431.375 38.4582 20160312_032600 -1 T F
20160514_190157 0,0.4,0.3 T 448.556 38.2472 20160312_032600 -1 T F
20160514_190353 0,0.4,0.3 T 418.004 38.0856 20160312_032600 -1 T F
20160514_FW2-potioningRepeatability.png

Test of acquisition of a MAG18 star

12:30: we spent time debugging the APD set decimation that is causing the APD viewer to freeze and it is blocking the NGS magnitude calculation at the beginning of the CL.

13:00: we try to test the acquisition on a MAG18 star. We increase the number of frames taken by CCD47 to 300 first and then 500 but it is always failing
  • we need to adjust thresholds for NGS acquisition or to produce a new acquisition procedure able to work at MAG>17

Second FW2 positioning error measurement

15:00: we check again the repeatability of FW2 using a different approach: we close the loop on QC, we pause and move FW2 to pos1 and then back to pos0. We resume the loop and we measure the offset introduced by the FW2 positioning error on the LGSW jitter offset:
TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160514_221451 0.2,0.4,0.3 T 1061.36 58.9429 20160312_032600 -1 T F
20160514_221543 0.2,0.4,0.3 T 945.955 53.3083 20160312_032600 -1 T F
20160514_221642 0.2,0.4,0.3 T 984.473 58.1939 20160312_032600 -1 T F
20160514_221728 0.2,0.4,0.3 T 975.435 59.4383 20160312_032600 -1 T F
20160514_221816 0.2,0.4,0.3 T 940.353 61.835 20160312_032600 -1 T F
20160514_FW2-potioningRepeatability_withLgswJitter.png

DX Hexapod to Patrol camera calibration

15:30: we move to DX LGSW, we get back values from March 16:

DX HEXA -5.95 -7.6 0.95 145 -20
We acquire the IM between the LGSW patrol cameras and the Hexapod correct pointing command

  • DX HEXA PATCAM IM: 20160514_230551

LgswUnitDx test with July 15 reconstructors

We get back July 2015 subaps and RECs. We first check the functionality closing a loop LGSW only, we can do everything from arbitrator. We start w/o and w/ 1" disturb.

TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160514_233747 0.2,0.1,0.05 T 270.657 27.8023 20150704_021200 -1 F F no dist
20160514_234113 0.5,0.5,0.4 T 218.38 64.1842 20150704_021200 -1 F F
20160514_234328 0.2,0.1,0.05 T 232.268 193.373 20150704_021200 -1 F F 0.8" dist
20160514_234349 0.5,0.5,0.4 T 193.618 66.0073 20150704_021200 -1 F F
20160514_234408 0.5,0.5,0.4 T 176.028 64.6979 20150704_021200 -1 F F
20160514_233747-20160514_234408_modalplot.png

In snapshot 20160514_234113 the gains were too high and the system was oscillating at 90Hz.

Then we switch to QC: we preset as MAG15, Pyr as TS.

SX BOARD -74.5 -56.5 52.8
Preset -74.0 -56.5 52.8
  • After NGS acquire the FW2 is moved to the same position of SX unit (-0.004 steps) while it should be 0.054 steps. Clicking on QC mirror button properly position the QC mirror to 0.054 steps.

  • TS has not the proper REC:

IMG_20160514_165441249.jpg

TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160515_000410 0.7,0.4,0.3 T 485.758 39.7099 20150704_021300 -1 T F no dist
20160515_000506 0.7,0.4,0.3 T 440.388 38.8932 20150704_021300 -1 T F
20160515_000807 1,0.4,0.3 T 453.17 88.0854 20150704_021300 -1 T F 0.8" dist
20160515_000827 1,0.4,0.3 T 384.591 76.459 20150704_021300 -1 T F
20160515_000854 1,0.4,0.3 T 413.882 84.9671 20150704_021300 -1 T F
20160515_000410-20160515_000854_modalplot.png

We also try to compare the fluxes measured by Pyramid and QC:

TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160515_001052 0.2,0.1,0.05 T 596.536 26.3156 20150704_021300 -1 T F FW1: 50-50
20160515_001155 0,0.1,0.05 T 440.568 25.7265 20150704_021300 -1 T F FW1: 600-1000
20160515_001239 0,0.1,0.05 T 170.022 25.8275 20150704_021300 -1 T F FW1: silver mirror
FW1 PyrMag Pyr Photons Apd Counts
50-50 14.37 600k 86k
600-1000 13.70 1.1M -
silver mirror - - 208k
According to this analysis the 50/50 filter seems a T:53/R:41 filter. Transmission factor between Pyramid and APD is 5.

We move to Pyramid Bin4, we preset for MAG14 star, we are able to close the loop w/o TS:

TN AO Gain AO CL TT Res. WF [nm rms] HO Res. WF [nm rms] AO rec DIMM ["] JCL PCL Notes
20160515_002028 1.4,0.4,0.4 T 133.923 37.9529 20150704_021500 -1 T F no dist
20160515_002235 1.4,0.4,0.4 T 92.6415 54.4448 20150704_021500 -1 T F 0.8" dist
20160515_002407 1.4,0.4,0.4 T 88.5159 55.0852 20150704_021500 -1 T F
20160515_002434 1.4,0.4,0.4 T 101.041 54.1564 20150704_021500 -1 T F
20160515_002752 1.4,0.4,0.4 T 92.688 55.1877 20150704_021500 -1 T F
20160515_002807 1.4,0.4,0.4 T 103.083 55.0496 20150704_021500 -1 T F
20160515_002028-20160515_002807_modalplot.png

Final hexapod position:

DX HEXA -6.73 -6.50 0.80 -69 -172
-- WolfgangGaessler - 14 May 2016
Topic revision: r9 - 15 May 2016, TommasoMazzoni
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