NI CH Partial installation
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NI CH Partial installation
This morning we (Maurizio and I) started the installation of the Central Heating (CH) telescopes. We began from NI bench.
We installed most of the optics, the recombination beam splitter has not been installed because the mount is missing (crafted but left in Rome). As expected, the insertion of the pick-up beam splitter changed the alignment of the CO2 beam on the AXICON. We restored the alignment of the annular beam and also re-aligned it onto the crosshair. The calibration of the waveplate has to be updated, since the pick-up BS is subtracting some power from the annular beam (about 10%-15%). Taking this into account, NI TCS can still be used.
Tomorrow morning, we'll proceed with the installation of the CH telescope on the WI bench.
Moreover, the beam dumps are not watered, the hardware for connecting the dumps to the chiller will be available starting from this friday. Installation of these connections is foreseen during next week as well as the completion of the installation of the CH telescope on both TCS benches.
In the meantime, electrical connections and software for the CH stepping motors and flip mirrors are being completed.
Attached there are some (bad) images of the installation.
We installed most of the optics, the recombination beam splitter has not been installed because the mount is missing (crafted but left in Rome). As expected, the insertion of the pick-up beam splitter changed the alignment of the CO2 beam on the AXICON. We restored the alignment of the annular beam and also re-aligned it onto the crosshair. The calibration of the waveplate has to be updated, since the pick-up BS is subtracting some power from the annular beam (about 10%-15%). Taking this into account, NI TCS can still be used.
Tomorrow morning, we'll proceed with the installation of the CH telescope on the WI bench.
Moreover, the beam dumps are not watered, the hardware for connecting the dumps to the chiller will be available starting from this friday. Installation of these connections is foreseen during next week as well as the completion of the installation of the CH telescope on both TCS benches.
In the meantime, electrical connections and software for the CH stepping motors and flip mirrors are being completed.
Attached there are some (bad) images of the installation.
Alessio- Posts : 127
Join date : 2008-11-07
Age : 52
Location : Rome
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