A two-stage helium 3-helium 4 fridge for bolometric photometry.

Author(s) : MAIANI T., BERNARDIS P. de, PETRIS M. de, et al.

Type of article: Article

Summary

The fridge was optimized to work without external pumps, with the main cryostat providing a 4.2 K thermostat at sea level and a 4.0 K one at high mountain pressure conditions. The measured ultimate temperature of the fridge is 290 mK, with a hold time of 81 h. The external heat input on the cold flange is about 35 microW, with the main bath at 4.0 K. The recycle time is 8 h with a heat input on the thermostat during recycling of about 6800 J.

Details

  • Original title: A two-stage helium 3-helium 4 fridge for bolometric photometry.
  • Record ID : 2000-2335
  • Languages: English
  • Source: Cryogenics - vol. 39 - n. 5
  • Publication date: 1999/05

Links


See other articles in this issue (2)
See the source