Hydrogen pumping at 20 K by molecular sieves 5A |
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| Authors: | V Venkataramanan |
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| Affiliation: | Low Temperature Laboratory, Department of Physics, IIT, Madras – 600 036. India |
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| Abstract: | Molecular sieves bonded to the condensing surface of a continuous flow cryopump serve as the adsorbent of a cryosorption pump. A study of cool down and pumpdown characteristics of the pump shows that it can be used to pump hydrogen in a chamber to high vacuum (10?6 mbar) even from an initial filling pressure in the region of 10 mbar. |
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| Keywords: | pumps cryogenics molecular sieves |
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