Method and apparatus for spatial compression and increased mobility resolution of ions

Patent · 13 April 2021

OSTI ID:1823839

Ibrahim, Yehia M.; Garimella, Sandilya; Smith, Richard D.

Methods and apparatuses for ion peak compression and increasing resolution of ions are disclosed. Packets of ions are introduced into a device. A first electric field is applied for dispersing the ion packets temporally or spatially according to their mobilities. A second intermittent traveling wave is applied for regrouping or merging the dispersed ion packets into a lesser number of trapping regions with narrower peaks. The ions packets are compressed into the narrower peak regions by varying a duty cycle of the intermittent traveling wave.

• Research Organization: \; Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): 10,976,283
• Application Number: 16/672,690
• OSTI ID: 1823839
• Country of Publication: United States
• Language: English