May 6 – 10, 2024
Europe/Rome timezone

Updates on ARC: R&Ds for ET, cryogenic strategies without cryo-liquids

May 7, 2024, 5:30 PM
1h 30m


Poster Instrument Science Board (ISB) Posters


The Amaldi Research Center (ARC), located in Sapienza University of Rome, will host the first experiment of a cooling system for an actual-sized cryogenic payload. Following the solid conduction cooling scenario, two refrigeration lines, each driven by two Pulse Tubes cryocoolers, will be used to cooldown a cryogenic payload hosted in a specifically designed 3 m tall cryostat.
While one refrigeration line has already been built, the other, along with the cryostat and the payload, is now under construction and will be ready in 2025.
Before that date, the entire system must be properly designed and simulated to ensure the success of the cooling and to optimize the cooling time.
Hence, several experimental tests and simulations are progressing.
The goal is to investigate the thermal properties of the components of the solid conduction path from the cryocoolers to the mirror and the mechanical properties of the sapphire elements of the payload suspensions.

Primary authors

Angelo Cruciani Daniele Pasciuto (INFN Roma1) Ettore Majorana Eugenio Benedetti Prof. Fulvio Ricci (University of Rome Sapienza) Luca Naticchioni Marco Orsini (Sapienza University of Rome) Marco Ricci (Sapienza, INFN Roma1) Maurizio Perciballi Paola Puppo Prof. Piero Rapagnani (La Sapienza University & INFN Sezione di Roma) Stefano Pirro Van Long Hoang (INFN-Roma1) valentina mangano

Presentation materials