Liquid metal ion sources and their applications

Mair, G L R

doi:10.1016/0168-1176(92)85018-u

Cited by 10 publications

(3 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Molecular and atomic ions are extractable from the surface of an electrified liquid through the agency of a strong electric field. This phenomenon serves as the foundation for the liquid metal ion sources (LMIS) that have found use in a variety of applications ranging from electric micropropulsion [1,2], etching and deposition [3], and analytical instrumentation [4]. Such broad technological utility has led to high levels of both empirical [5] and theoretically [6] development.…”

Section: Introductionmentioning

confidence: 99%

Electrohydrodynamics of an ionic liquid meniscus during evaporation of ions in a regime of high electric field

2019

View full text Add to dashboard Cite

Numerical investigations are presented for an ionic liquid meniscus undergoing evaporation of ions in a regime of high electric field. A detailed model is developed to simulate the behavior of a stationary meniscus attached to a liquid feed system. The latter serves as a proxy for commonly utilized electrospray emitters such as needles and capillary tubes. Two solution families are identified for prototype liquid analogous to the ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate (EMI-BF4). The first belongs to a regime of low electric field in which the meniscus is blunt and does not emit charge. The second belongs to a regime of high electric field in which a conelike meniscus produces charge from a sharp tip. Electrohydrodynamic features of the meniscus in this regime are presented. These reveal that the meniscus is Stokesian and hydrostatic and governed by conduction. The applied electric field influences both the shape of the meniscus and the current that it produces while the impedance of the feed system-which must be above a threshold value in order to ensure that the current, and therefore the flow, remains below a maximum value-influences the meniscus current but not the macroscopic shape. In general, this shape deviates from Taylor's idealized cone.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrohydrodynamics of an ionic liquid meniscus during evaporation of ions in a regime of high electric field

2019

View full text Add to dashboard Cite

show abstract

“…이차이온화 [6][7][8] 정량분석에서 2-2-1. 일차이온컬럼 [9][10][11][12] 이차이온질량분석기는 일차이온을 생성하기 위해 주 2-2-2. 질량분석계 [13][14][15] 질량분석계(mass spectrometer)는 이중집속형 질량 2-3.…”

Section: 본론unclassified

Secondary Ion Mass Spectrometry : Theory and Recent trends

Byeon¹,

Kim²,

Hong³

2019

Ceramist

View full text Add to dashboard Cite

Secondary Ion Mass Spectrometry(SIMS) is an analytical method that measures the distribution and concentration of elements or compounds by analyzing the mass of secondary ions released by irradiating ion beams with energy of hundreds eV to 20 keV on the sample surface. Unlike other similar analytical instruments, SIMS directly detect the elemental ions that constitute a sample, allowing you to accurately identify components and obtain concentration information in the depth direction. It is also a great feature for measuring isotopes and analyzing light elements, especially hydrogen. In particular, with the development of materials science, there is an increasing demand for trace concentration analysis and isotope measurements in the micro-regions of various materials. SIMS has a short history compared to other similar methods; nevertheless, SIMS is still advancing in hardware and is expected to contribute to the development of materials science through research and development of advanced analytical techniques.

show abstract

“…Due to the superior performance, such ion sources found a multitude of applications, ranging from focused-ion-beam microprobes over mask/circuit repair and manipulation to lithography (see e.g. [1][2][3][4] and references therein). Due to their compact design, high reliability and low maintenance requirements, these sources are even used as ion thrusters for space crafts [5,6].…”

Section: Introductionmentioning

confidence: 99%

Transition Frequencies and Hyperfine Structure in $^{113,115}$In$^+$: Application of a Liquid-Metal Ion Source for Collinear Laser Spectroscopy

König,

Krämer,

Imgram

et al. 2020

Preprint

View full text Add to dashboard Cite

We demonstrate the first application of a liquid-metal ion source for collinear laser spectroscopy in proof-of-principle measurements on naturally abundant In + . The superior beam quality, i.e., the actively stabilized current and energy of a beam with very low transverse emittance, allowed us to perform precision spectroscopy on the 5s 2 1 S0 → 5s5p 3 P1 intercombination transition in 115 In + , which is to our knowledge the slowest transition measured with collinear fluorescence laser spectroscopy so far. By applying collinear and anticollinear spectroscopy, we improved the center-ofgravity frequency νcg = 1 299 617 759. 3 (1.2) and the hyperfine constants A = 6957.19 (28) MHz and B = −443.7 (2.4) MHz by more than two orders of magnitude. A similar accuracy was reached for 113 In + in combination with literature data and the isotope shift between both naturally abundant isotopes was deduced to ν( 113 In) − ν( 115In) = 696.3 (3.1) MHz. Nuclear alignment induced by optical pumping in a preparation section of the ion beamline was demonstrated as a pump-andprobe approach to provide sharp features on top of the Doppler broadened resonance profile.

show abstract

Liquid metal ion sources and their applications

Cited by 10 publications

References 45 publications

Electrohydrodynamics of an ionic liquid meniscus during evaporation of ions in a regime of high electric field

Electrohydrodynamics of an ionic liquid meniscus during evaporation of ions in a regime of high electric field

Secondary Ion Mass Spectrometry : Theory and Recent trends

Transition Frequencies and Hyperfine Structure in $^{113,115}$In$^+$: Application of a Liquid-Metal Ion Source for Collinear Laser Spectroscopy

Contact Info

Product

Resources

About