Location
Utah State University
Start Date
5-10-2010 11:15 AM
Description
A simple method has been proposed to study the effects of multipole components on the performance of a radiofrequency quadrupole ion-trap mass analyzer, named the planar Paul trap. The device consists of two parallel ceramic plates, the opposing surfaces of which are lithographically imprinted with 24 metal rings. This suggested method combines the unique properties of this type of trap: the multiple-circular-ring structure, and ease of changing the electric field through differing capacitor configurations on printed circuit boards. Using this approach, the magnitude and sign of different multipole components, including octopole and dodecapole, can easily be adjusted through altering the voltage applied to each ring. This study presents a systematic investigation of the effects of multipole components (e.g., octopole and dodecapole) on the performance of the planar Paul trap. The results demonstrate that the octopole component has a more pronounced effect on the performance of the planar Paul trap than the dodecapole field, especially for ions with larger mass-to-charge ratios. Also, the sample concentration in the trapping region has a significant influence on the performance of the planar Paul trap with the change of the multipole components in trapping potentials.
Planar Electrode Quadrupole Ion Traps
Utah State University
A simple method has been proposed to study the effects of multipole components on the performance of a radiofrequency quadrupole ion-trap mass analyzer, named the planar Paul trap. The device consists of two parallel ceramic plates, the opposing surfaces of which are lithographically imprinted with 24 metal rings. This suggested method combines the unique properties of this type of trap: the multiple-circular-ring structure, and ease of changing the electric field through differing capacitor configurations on printed circuit boards. Using this approach, the magnitude and sign of different multipole components, including octopole and dodecapole, can easily be adjusted through altering the voltage applied to each ring. This study presents a systematic investigation of the effects of multipole components (e.g., octopole and dodecapole) on the performance of the planar Paul trap. The results demonstrate that the octopole component has a more pronounced effect on the performance of the planar Paul trap than the dodecapole field, especially for ions with larger mass-to-charge ratios. Also, the sample concentration in the trapping region has a significant influence on the performance of the planar Paul trap with the change of the multipole components in trapping potentials.