Results 1 to 10 of about 125,698 (307)
Multiplexing Quadrupole and Ion Trap Operation Modes on a “Brick” Miniature Mass Spectrometer [PDF]
Molecules, 2023 Although a quadruple mass analyzer and an ion trap mass analyzer have complementary analytical features, they usually have different geometries, operational modes, and electronic control systems.
Chaohong Feng +3 more
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Review of Ion Collision Cross Section Measurement Methods Based on Ion Trap Mass Spectrometry [PDF]
Zhipu Xuebao, 2022 In recent years, with the increasing demand for molecular structure analysis, the development of method for measuring ion collision cross sections (CCS) in a single ion trap mass analyzer has become a research hot topic.
XIANG Yu, JIANG Ting, XU Wei
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Design and Simulation of a Double Potential Well Flat Ion Trap [PDF]
Zhipu Xuebao, 2023 A double potential well flat ion trap was designed as an ion accumulating and focusing device for multi-reflection time-of-flight mass analyzer. Two potential wells of the trap were severally used for accumulation of injected ions, controlled cooling and
WANG Xin-yu1 +8 more
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Design and Performance Evaluation of Asymmetric Hyperboloid Linear Ion Trap [PDF]
Zhipu Xuebao, 2021 Hyperbolic electrode linear ion trap is a good choice as the mass analyzer of miniaturized ion trap mass spectrometer for the reason that it has a compact size and excellent performance. However, ions are ejected from both opposite directions along the x-
WU Hui +5 more
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Simulations of ion trapping in a micrometer-sized cylindrical ion trap [PDF]
Journal of the American Society for Mass Spectrometry, 2006 We have performed detailed SIMION simulations of ion behavior in micrometer-sized cylindrical ion traps (r0 = 1 microm). Simulations examined the effects of ion and neutral temperature, the pressure and nature of cooling gas, ion mass, trap voltage and frequency, space-charge, fabrication defects, and other parameters on the ability of micrometer-sized
Austin, Daniel E. +2 more
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Microfabricated ion traps [PDF]
Contemporary Physics, 2011 Ion traps offer the opportunity to study fundamental quantum systems with high level of accuracy highly decoupled from the environment. Individual atomic ions can be controlled and manipulated with electric fields, cooled to the ground state of motion with laser cooling and coherently manipulated using optical and microwave radiation.
Hughes, Marcus D. +3 more
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Optical trapping of an ion [PDF]
Nature Photonics, 2010 For several decades, ions have been trapped by radio frequency (RF) and neutral particles by optical fields. We implement the experimental proof-of-principle for trapping an ion in an optical dipole trap. While loading, initialization and final detection are performed in a RF trap, in between, this RF trap is completely disabled and substituted by the ...
Schneider, Christian M. +3 more
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Optimization and implementation of a surface-electrode ion trap junction
New Journal of Physics, 2022 We describe the design of a surface-electrode ion trap junction, which is a key element for large-scale ion trap arrays. A bi-objective optimization method is used for designing the electrodes, which maintains the total pseudo-potential curvature while ...
Chi Zhang +2 more
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Modular cryostat for ion trapping with surface-electrode ion traps [PDF]
Review of Scientific Instruments, 2013 We present a simple cryostat purpose built for use with surface-electrode ion traps, designed around an affordable, large cooling power commercial pulse tube refrigerator. A modular vacuum enclosure with a single vacuum space facilitates interior access and enables rapid turnaround and flexibility for future modifications.
Vittorini, Grahame +4 more
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Single ion thermal wave packet analyzed via time-of-flight detection
New Journal of Physics, 2021 A single ^40 Ca ion is confined in the harmonic potential of a Paul trap and cooled to a temperature of a few mK, with a wave packet of sub- μ m spatial and sub-m s ^−1 velocity uncertainty.
Felix Stopp +3 more
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