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Observation of transient cooling phenomenon in liquid helium by an optical measurement

✍ Scribed by Noriharu Tamada; Shuichiro Fuchino; Ko Agastuma; Itaru Ishii; Kastuyuki Kaiho; Mokoto Okano


Book ID
104112469
Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
314 KB
Volume
34
Category
Article
ISSN
0011-2275

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The cooling cell prevents liquid 4He from boiling. The temperature outside the cell has to be lower than that of the bath by 0.01 K. The best way to achieve this is to rise the vapour pressure of the bath to 10-15 Torr. The helium level in the cell can be kept constant with the help of a valve contr