✦ LIBER ✦

Plastic dewar for pressurized superfluid helium

✍ Scribed by H. Kobayashi; H. Fukuda; T. Tomioka; Y. Kuraoka

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 225 KB
Volume: 27
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(87)90062-2

No coin nor oath required. For personal study only.

✦ Synopsis

It should be noted that the mesh regenerators used in Reference 1 achieved a minimum temperature not lower than 40 K and a net refrigeration power of ~ 3 W at 77 K. On the contrary, our experimental data have shown that the single stage regenerator, suitably hybridized, can attain minimum temperatures of ~ 35 K and a net refrigeration power of greater than 6 W at liquid nitrogen temperature. Moreover, experimental data show that, under the same matrix configuration, the efficiency increases when the pressure difference assumes the value P~ -/'2 = 18 arm. Further research is required to optimize efficiency values at the lowest working temperatures.

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