High vacuum insulated cryostat and cryogenic cooling system for the infrared spectrometer GIANO-TNG of Canary Island

Cryogenic high vacuum chamber and related liquid nitrogen (LN2) cooling system for the infrared spectrometer GIANO installed at the Telescopio Nazionale Galileo at La Palma (Spain). The system guarantees over the internal aluminum optical bench a thermal stability of +/- 10 mK at 77 K.