Connecting the optical table to the ThomX ring, posted by Ronic Chiche at ThomX igloo about mechanics 
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On the 19th of May, the optical table has been moved inside the ThomX concrete housing and connected to the Symetrie hexapod and to the electron ring.
Symetrie guys started to test the hexapod and they put some software limits around the predefined zero position. |
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ThomX housing roof opening, posted by Ronic Chiche at ThomX igloo about utilities
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Today, Yannick Petrilli removed 5 concrete bars (5-9) from the ThomX housing roof in order to let the optical table be installed on Wednesday with the
help of Bovis and Symetrie.
The safety net above the equiments has been removed too (one had to remove the hooks on one side to be able to slide the net). |
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Moving the optical table to the Igloo, posted by Ronic Chiche at ThomX igloo about mechanics 9x
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This morning the Bovis company moved the optical table from the optical room to the Igloo without any problem.
The table is now stored inside the Igloo, just after the large entrance doors, on the right side.
It has been covered with plastic blankets. |
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Operations before moving the optical table, posted by Ronic Chiche at Optical room about mechanics | vacuum | utilities
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Operations before moving the optical table from the optical room to the Igloo.
— the cavity has been filled with clean nitrogen to reach ambient pressure.
— the two valves have been closed using 5 bar air pressure to properly clamp them. |
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Edge installation, posted by Ronic Chiche at Optical room about mechanics | vacuum
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19/06/2020
The first part of the edge installation was on done by Yann and Ronic
- close the 2 valves of the cavity |
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new circuit breaker for the UPS, posted by Ronic Chiche at Optical room about cabling
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A new circuit breaker has been installed today before the UPS to fix the shutdown issues we observed some months ago when too many devices are connected
to the UPS.
it has to be tested... |
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New valve cabling and 30Hz noise PZT, posted by Loïc Amoudry at Optical room about lasers and optics | vacuum
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The Pneumatic valves are still coming back to "close" position.
Now the air bottle is always "open" to keep the valves "open".
The 30Hz noise is still here. We tried to cut off all the air flows. It only decreased the noise intensity but didn't change its shape. |
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New valves cabling, posted by Ronic Chiche at Optical room about mechanics | vacuum
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Today, Manu and Eric changed the cavity valves pressure system to open and close them.
during the lock of the OneFive+Amp or of the Koheras, we saw a very noisy PZT signal at 30Hz with increasing/decreasing amplitude very slowly.
this noisy signal was not seen at the begining of the experiment. |
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Smaract Controllers setting, posted by Ronic Chiche at Optical room about mechanics | lasers and optics | detectors and electronics
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| Scheme of cabling of the SmarAct motors controllers for acting on Frep and CEP. |
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Chiller of the new laser amplifier , posted by Ronic Chiche at Optical room about utilities
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We observed 2 issues for the chiller of the new CELIA laser amplifier:
setting the water temperature to 17°C, the chiller water turns to ice close to the water filling port !!! => temperature too low
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even when the water is fluid, one has a flow sensor error ! => pump charge too strong ? => reduce the water pipe length.
We |
Chiller of the new laser amplifier , posted by Ronic Chiche at Optical room about utilities
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Today, the chiller worked at 17°C during 3 hours without error, no freezing nor flow sensor error.
Ronic
Chiche wrote:
We observed 2 issues for the chiller of the new CELIA laser amplifier: |