Ultra-sensitive photodetectors on-board space missions need very low temperatures to keep a good resolution. Cryo-coolers, such as pulse-tubes, help maintaining these conditions within a cryostat. In return however, they generate micro-vibrations. These micro-vibrations dissipate enough heat to cause temperature fluctuations at the detector's support, thus lowering the detector's resolution. The first objective is to establish a test bench almost from scratch. The test bench includes a dummy representing the detector's support. The next objectives is to verify that we can measure heat dissipation at the dummy, corresponding to very low values of power ; and finally, to find a link between mechanics and heat dissipation. The dummy consists o...
Recent advancements allow for sympathetic cooling of highly charged ions (HCI) to mK temperatures in...
High precision temperature measurements are a transversal need in a wide area of physical experiment...
In vacuo cryogenic environments are ideal for applications requiring both low temperatures and extre...
Certaines missions d'astrophysique embarquent des détecteurs infrarouges ou X qui sont refroidis à d...
The latest developments in the construction of the ultra-cryogenic spherical detector MiniGRAIL are ...
Mechanical cryocoolers will be used to provide 4K cooling for the HFI bolometer instrument in the Pl...
The resolution limit of gravitational wave interferometers is set by their mirrors' Brownian motion ...
A cryogenic test setup for microchannel plate detectors was built up and put into operation. Microch...
Vibration-free miniature Joule-Thomson (JT) coolers are of interest for cooling small optical detect...
The Mid Infrared Instrument (MIRI) on the James Webb Space Telescope includes a mechanical cryocoole...
We present a very sensitive optical measurement of the mechanical fluctuations of a micro-mirror in ...
Some scientific missions require to an extreme extent the absence of any on-board microvibration. Re...
The research work developed in the present PhD thesis deals with the measurement of mechanical dissi...
High precision temperature measurements are a transversal need in a wide area of physical experiment...
Cooling atoms to Nano-Kelvin requires an ultra-high vacuum system with complex features, such as coa...
Recent advancements allow for sympathetic cooling of highly charged ions (HCI) to mK temperatures in...
High precision temperature measurements are a transversal need in a wide area of physical experiment...
In vacuo cryogenic environments are ideal for applications requiring both low temperatures and extre...
Certaines missions d'astrophysique embarquent des détecteurs infrarouges ou X qui sont refroidis à d...
The latest developments in the construction of the ultra-cryogenic spherical detector MiniGRAIL are ...
Mechanical cryocoolers will be used to provide 4K cooling for the HFI bolometer instrument in the Pl...
The resolution limit of gravitational wave interferometers is set by their mirrors' Brownian motion ...
A cryogenic test setup for microchannel plate detectors was built up and put into operation. Microch...
Vibration-free miniature Joule-Thomson (JT) coolers are of interest for cooling small optical detect...
The Mid Infrared Instrument (MIRI) on the James Webb Space Telescope includes a mechanical cryocoole...
We present a very sensitive optical measurement of the mechanical fluctuations of a micro-mirror in ...
Some scientific missions require to an extreme extent the absence of any on-board microvibration. Re...
The research work developed in the present PhD thesis deals with the measurement of mechanical dissi...
High precision temperature measurements are a transversal need in a wide area of physical experiment...
Cooling atoms to Nano-Kelvin requires an ultra-high vacuum system with complex features, such as coa...
Recent advancements allow for sympathetic cooling of highly charged ions (HCI) to mK temperatures in...
High precision temperature measurements are a transversal need in a wide area of physical experiment...
In vacuo cryogenic environments are ideal for applications requiring both low temperatures and extre...