Injection apparatus both for positive and negative ions
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United States of America Patent
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Dec 24, 1996
Grant Date -
N/A
app pub date -
Sep 5, 1995
filing date -
Sep 5, 1994
priority date (Note) -
Expired
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Abstract
An injection apparatus both for positive and negative ions comprising: a first, a third and a fourth bump magnets arranged in order on a circulation orbit, a second bump magnet arranged on said circulation orbit between the first and the third bump magnets so as to maintain a given position relative to the circulation orbit and a carbon film arranged between the second and the third bump magnets, wherein the second bump magnet is afforded with both of respective functions of a bump magnet and a septum magnet, the second bump magnet is operated as the bump magnet upon the injection of a negative ion beam, while the second bump magnet is operated as the septum magnet upon the injection of a positive ion beam.
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