Dear Richard dear all,

please find below a short summary of the activities of 15th on the mountain related to the AO system.
Italian people working at LBTO were:

March 15th

Arcetri: A. Riccardi, R. Briguglio, M. Xompero, S. Esposito, A. Puglisi, E. Pinna
LBTO: G. Brusa

Total # of person: 7

AO control SW

to be updated tomorrow


The 4D interferometer new electronic has been received at about 13.00. The unit has been reassembled in the lab. The laser light output has been found stable. Then, with the unit in the optical lab, a test of the interferometer operation has been done by using a small flat mirror. The results has been negative. The interferometer do not measure properly the flat mirror. Some analysis of the interferometer frames sees to show either some reordering error in the pixel or some problem with the internal mask of the unit. The test frames has been recorded as reference data. Then a decision was taken to return the unit to 4D premises tomorrow for further investigation.

FLAO activity

1) The FLAO system alignment has been continued today. The alignment activity required to move M2 and M3. M3 has been moved with the remote help of P. Lazzarini and P. Gretz form Tucson. The morning has been spent in adjusting M2. The M3 unit alignment has been finalized in the beginning of the afternoon. After this the IRTC has been turned on and M2 focused. The spot has been localized and acquired in the IRTC and in the WFS technical viewer. The alignment procedure has been interrupted at 5pm at the start of the observing night. The last step is to acquire the back reflected spot with the pyramid sensor.

Meeting: a meeting has been held by L. Fini and the LBTO SW group in Tucson about the implementation of some commands of the AOS module.

Next update tomorrow

All the best


-- ArmandoRiccardi - 02 Apr 2010
Topic revision: r1 - 02 Apr 2010, ArmandoRiccardi
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