Cryosorption pump

Details Cryosorption pump Cryosorption pump

1984-09-17

1986-08-26

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

55269, 62 3, 62100, 62268, 417901, B01D 800

Patent

active

046074937

ABSTRACT:
A cryosorption pump for high vacuum condition to be evacuated generally comprises a cryopumping container connected to a chamber to be evacuated, and cryosorption and cryocondensation members located in the container. The cryocondensation member surrounds the cryosorption member on which an adsorbent is applied to adsorb gases which are not beforehand condensed on the cryocondensation member. A coil means or magnet means for generating a magnetic field is also disposed in the container so as to generate a magnetic field around the cryosorption member to prevent from the impingement of energetic electrons or .beta.-rays emitted from a material condensed on the cryocondensation member against the cryosorption member.

REFERENCES:
patent: 3066849 (1962-12-01), Beams
patent: 3175373 (1965-03-01), Holkeboer et al.
patent: 3236442 (1966-02-01), Davis et al.
patent: 3296773 (1967-01-01), Hemstreet
patent: 3338063 (1967-08-01), Hogan et al.
patent: 4207746 (1980-07-01), McFarlin
"Performance of BNL-TSTA Compound Cryopump".

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