发明名称 |
TWO ROTATING ELECTRIC FIELDS MASS ANALYZER |
摘要 |
A mass analyzer includes two rotating electric field (REF) units, sinusoidal signal generators and a means for separation of dispersed ions. The REF units include a plurality of elongated electrodes surrounding a central axis, and are lined in tandem at elongated direction. Sinusoidal signals are applied to the electrodes to rotate electric fields within each REF unit. The means for separation is placed adjacent the downstream end of the 2nd REF unit. Ions enter the 1st REF unit, diverge outwards and leave the 1st REF unit on off-axis positions. The ions successively enter the 2nd REF unit and converge inwards because of 180 degrees phase difference from the 1st REF unit. Specified mass ions return to and travel along the central axis. However, unspecified mass ions deviate from the central axis and travel apart from the central axis. The means for separation separates specified ions from unspecified ions. |
申请公布号 |
EP2956955(A4) |
申请公布日期 |
2016.10.05 |
申请号 |
EP20140752094 |
申请日期 |
2014.02.07 |
申请人 |
OFFICE TANDEM LLC |
发明人 |
HOTTA, MASANAO;ADACHI, TATSUYA |
分类号 |
H01J49/42;H01J37/05;H01J37/244;H01J37/252;H01J49/36 |
主分类号 |
H01J49/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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