Yaofeng Zhang, Yuan Yin, Lei Cao, Chunlei Zhang. Simulations of ion trap devices based on finite element analysis method[J]. High Power Laser and Particle Beams, 2021, 33(8): 086002
- High Power Laser and Particle Beams
- Vol. 33, Issue 8, 086002 (2021)
Fig. 1. Structure of an ideal Penning trap
Fig. 2. Geometry model of a Penning trap in ANSYS
Fig. 3. Contour of equal potential for the electric field in the gap of the Penning trap (1/4 of the whole plane)
Fig. 4. Tracking results for an ion moving in an ideal Penning trap (start from x =0.1 cm, y =0 and z =0.2 cm)
Fig. 5. The tracking results for an ion moving in the Penning trap, with Helium gas filled in (start from x =0.1 cm, y =0 and z =0.2 cm)
Fig. 6. The way to apply the quadrupole excitation potential on the ring electrodes
Fig. 7. Tracking results for an ion moving in the Penning trap, with helium gas filled in and quadrupole electric potential applied (start from x =0.1 cm, y =0 and z =0.2 cm), here
潘宁装置中充入He气体加四极场激发时离子运动轨迹图（
）（初始位置x =0.1 cm，y =0，z =0.2 cm）
Fig. 8. Equal potential distribution when the excitation potential of ±10 V applied on the ring electrodes
Fig. 9. Relative error between the real distribution of the potential of the gap and the ideal quadruapole distribution, varying with different radii
Fig. 10. Diagram of the ring electrodes for an optimized Penning trap
Fig. 11. Projection of the motion of an ion upon x -y plane, the starting point is x =0.1 cm and y =0 cm
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