Table 1 Pumping speeds of the cryopump for H 2 and Ar with the cold trap at 4.2 K and 2.2 K respectively (Pumping speeds of N 2 and dry air are equal to those of Ar within 10%) Pumping speed, I s "1 Gas 4,2 K 2.2 K H 2 4 000 5 200 Ar 1 000 1 000 gas molecules even for low values of the sticking pro
Evaluation of thermometrics thermistors for use at cryogenic temperatures
β Scribed by William J. Orvis
- Publisher
- Elsevier Science
- Year
- 1981
- Weight
- 157 KB
- Volume
- 188
- Category
- Article
- ISSN
- 0167-5087
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