Lossless Ion Trapping in Structures for Lossless Ion Manipulation (SLIM) Xinyu Zhang , Sandilya V.B. Garimella, Spencer A. Prost, Ian K. Webb, Randolph V. Norheim, Brian L. LaMarche, Tsung-Chi Chen, Aleksey V. Tolmachev, Gordon A. Anderson, Yehia M. Ibrahim and Richard D. Smith Pacific Northwest National Laboratory
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Lossless Ion Trapping in Structures for Lossless Ion Manipulation (SLIM)
Xinyu Zhang, Sandilya V.B. Garimella, Spencer A. Prost, Ian K. Webb, Randolph V. Norheim, Brian L. LaMarche, Tsung-Chi Chen, Aleksey V. Tolmachev,
Gordon A. Anderson, Yehia M. Ibrahim and Richard D. Smith
Pacific Northwest National Laboratory
Basic Gas Phase Ion Manipulations
Ion transport
Ion trapping
Ion-ion/ion-molecule reactions
Ion mobility separations (IMS)
Ion Trapping in SLIM Explored at ~Torr Pressures
Ion accumulation and charge capacity in a SLIM trap
Ion release from a SLIM trap
Ion storage for extended times to e.g. enable more efficient use of MS
Structures for Lossless Ion Manipulation
See Poster WP714 by Ian Webb et al., Jun 17
5 mm
Slim Electrode Designs Used in This Study
5.6 mm
0.76 mm
0.76 mm
0.76 mm
Rung electrodes
Guard electrodes
Guard electrodes
DC Rung gradient
Guard gradient
+ - + - + - + - + - + -
Comparable DC Voltages Used on Rung and Guard Electrodes to Facilitate Ion Confinement
Guard gradient
DC for ion confinement and manipulation used in conjunction with RF confinement potentials applied to rung electrodes
10.00 40.00 70.00
0 25 50 75
Potential (V)0
25
50
Pot
entia
l (V)
Pseudo Potential Well (Ion Confinement)
X
Y
Charge: 1+Mass: 1000RF: 200 Vp-p at 800 kHzGuard Bias: +5 V
See Poster WP716 by Sandilya Garimella et al., Jun 17
7.000 53.50 100.0
0 20 40 60
Potential (V)
Pot
entia
l (V)
01020
Z
Y
Pseudo Potential Well (Ion Transport)
See Poster WP716 by Sandilya Garimella et al., Jun 17
DC: 12 V/cm
6
10.00 55.00 100.0
0 50
Potential (V)
Pot
entia
l (V)
15
20
Z
Y
Pseudo Potential Well (Ion Trapping)
See Poster WP716 by Sandilya Garimella et al., Jun 17