FF test.

very preliminary optical alignment. HP pos=[147.28 , 1849.19 , -67 , 226.9 , 322,0]

Astigmatism applied to correct the image

new 'flat' position saved in /Applicable/shell_set_tower_astig_corrected.sav

Final HP position

[-177.51, 1655.173 , -7.93, 220.311 , 285.53, -0.53354305]

FF matrix acquisition

tn=20110628_112423

20 iterations

new configuration installed

i4d_opt_intmat,from, to,amprms=, average=n_iterations

Act on the innermost ring have been pulled 600nm to put the mirror within 4D capturing range

New modes

20110628_182859 0-50

20110628_184310 150nm
20110628_185523 50nm
20110628_185637 25nm
20110628_185747 15nm

the flattening procedure is no longer improving.... forces are very high on innermost actuators, while the shape on the central hole is still bad.

last test with a set of 350 modes. flattening file= 20110628_182859_flat_data_351modes

last flat: elec= 20110628_195633/flattening_result.sav opt= 20110628_195633_flat350modes.h5 rms=56nm

forces are however too large for modes sampling a previous flat is loaded: 20110628_185348/flattening_result

this will allow a safe modes sampling

-++Modes sampling

Tracknum modes ampl
20110628_200745 0-14 150
20110628_200925 15-29 150
20110628_201115 30-44 150
20110628_201343 45-59 150
20110628_201532 60-74 150
20110628_202107 75-89 100
||20110628_202329|90-104|100
20110628_202701 105-119 50
20110628_202837 120-134 50
20110628_203041 135-149 40
20110628_203208 150-164 40
20110628_203340 165-179 40
20110628_203515 180-194 40
20110628_203658 195-209 40
20110628_203858 210-224 30
20110628_204110 225-239 30
20110628_204251 240-254 30
20110628_204427 255-269 30
20110628_204559 270-284 30
20110628_204738 285-299 30
20110628_204914 300-314 25
20110628_205044 315-329 25
20110628_205225 330-344 25
20110628_205407 345-359 25
20110628_205543 360-374 25
20110628_205716 375-389 25
20110628_205847 390-404 25
20110628_210026 405-419 20
20110628_210221 420-434 20
20110628_210354 435-449 20
20110628_210536 450-464 20
20110628_210719 465-479 20
20110628_210854 480-494 20
20110628_211127 495-509 20
20110628_211325 510-524 20
20110628_211546 525-539 20
20110628_211727 540-554 20
20110628_211909 555-569 20
20110628_212049 570-571 20

-++Additional sampling, just to be sure N iteration=9

Tracknum modes amp
20110628_212716 0-50 100
20110628_212855 51-100 100
20110628_213127 101-149 80
20110628_213249 101-149 60
20110628_213409 150-199 40
20110628_213529 200-249 40
20110628_213715 250-299 40
20110628_213835 300-349 30
20110628_213948 350-399 30
20110628_214107 400-449 20
20110628_214227 450-499 20
20110628_214349 500-549 20
20110628_214541 550-570 20

-++Additional sampling The shell is flattened using 350 modes to achieve a better figuring and a better mode identification in the center

flat: 20110628_215104/flattening_result

Tracknum modes amp
20110628_215216 0-49 100
20110628_215524 50-99 100
20110628_215653 100-149 60
20110628_215812 150-199 60
20110628_215927 200-249 60
20110628_220103 250-299 40
20110628_220240 300-349 30
20110628_220354 350-399 30
20110628_220522 400-449 20
20110628_220659 450-499 20
20110628_220820 500-549 20
20110628_220945 550-570 20

-++Noise measurements 20110628_221100_noise_ATToff 20110628_221200_noise_ATToff 20110628_221400_noise_ATToff

-- MarcoXompero - 28 Jun 2011
Topic revision: r5 - 28 Jun 2011, RunaBriguglio
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