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Ion optic components for mass spectrometers

  • US 20010035498A1
  • Filed: 12/22/2000
  • Published: 11/01/2001
  • Est. Priority Date: 05/24/2000
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • (a) a hollow first element, and (b) a hollow second element, said second element being disposed within said first element, said second element having at least two openings in a wall thereof wherein said openings are elongated and radially disposed with respect to the axis of said second element and wherein the length of said openings are at least about 20% of the length of said second element, said first element and said second element each being adapted independently to receive a voltage to generate within said second element an oscillating electric potential field having predetermined characteristics.

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