Simulated and developed an electron impact ionization source for space miniature time-of-flight mass spectrometer

Ren, Zhengyi; Guo, Meiru; Cheng, Yongjun; Sun, W.; Dong, Meng; Li, Gang; Peng, Xiaoqiang; Wu, Chengyao

doi:10.1016/j.vacuum.2020.109207

Cited by 11 publications

(4 citation statements)

References 17 publications

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“…In addition to developing new filament materials, research efforts have also been made to optimize and reduce the size of the EI unit [29]. Li et al.…”

Section: Instrumentation Of Portable Mass Spectrometersmentioning

confidence: 99%

“…In addition to developing new filament materials, research efforts have also been made to optimize and reduce the size of the EI unit [29]. Li et al [30] designed a miniature EI source which employs two identical rhenium-tungsten filaments featuring longer lifetime and improved stability with a power consumption of 15 W. Meng et al [31] developed the ionization chamber with a dimension of 12 × 12 × 7 mm 3 and an exit slit that is 1 mm wide.…”

Section: Electron Ionizationmentioning

confidence: 99%

“…MCPs, sharing similar operation principles with EM, can provide an image of the particle distribution that EM cannot. At the same time, multiple plates stacked together in the chevron configuration can generate strong signal amplification with high spatial information[29,[129][130][131]. The drawback of EMs and MCPs for portable systems is the usage of a high voltage, resulting in the requirement for a high-voltage power source.…”

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confidence: 99%

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Portable mass spectrometry system: instrumentation, applications, and path to ‘omics analysis

et al. 2022

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Mass spectrometry (MS) is an information rich analytical technique and plays a key role in various 'omics studies. Standard mass spectrometers are bulky and operate at high vacuum, which hinder their adoption by the broader community and utility in field applications. Developing portable mass spectrometers can significantly expand the application scope and user groups of MS analysis. This review discusses the basics and recent advancements in the development of key components of portable mass spectrometers including ionization source, mass analyzer, detector, and vacuum system. Further, major areas where portable mass spectrometers are applied are also discussed. Finally, a perspective on the further development of portable mass spectrometers including the potential benefits for 'omics analysis is provided.

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“…In addition to developing new filament materials, research efforts have also been made to optimize and reduce the size of the EI unit [29]. Li et al.…”

Section: Instrumentation Of Portable Mass Spectrometersmentioning

confidence: 99%

Section: Electron Ionizationmentioning

confidence: 99%

mentioning

confidence: 99%

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Portable mass spectrometry system: instrumentation, applications, and path to ‘omics analysis

et al. 2022

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“…6.1. Development of a Miniature Magnetic Sector MS. Aiming at space exploration, we have developed a series of mass spectrometers, including TOF MS [68][69][70], ion trap MS [71][72][73], and magnetic sector MS (MMS) [74][75][76], among which a miniature MMS has been constructed and launched to 499 km Earth's orbit along with an experiment satellite in 2012 [76]. Compared with other mass spectrometers, MMS's advantages lie in simplicity, stability, high mass resolution and mass rejection ratio, and superior abundance sensitivity, making it a selection for atmospheric composition analysis and isotopic analysis [77].…”

Section: Space Mass Spectrometermentioning

confidence: 99%

Applications of Vacuum Measurement Technology in China’s Space Programs

Wang

Zhang

et al. 2021

Space Sci Technol

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The significance of vacuum measurement technology is increasingly prominent in China’s thriving space industry. Lanzhou Institute of Physics (LIP) has been dedicated to the development of payloads and space-related vacuum technology for decades, and widely participated in China’s space programs. In this paper, we present several payloads carried on satellites, spaceships, and space stations; the methodologies of which covered the fields of total and partial pressure measurement, vacuum and pressure leak detection, and standard gas inlet technology. Then, we introduce the corresponding calibration standards developed in LIP, which guaranteed the detection precision of these payloads. This review also provides some suggestions and expectations for the future development and application of vacuum measurement technology in space exploration.

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Research and implementation of the adaptive control method for emission current of electron ionization ion source

Wang

Chen

Sun

et al. 2023

International Journal of Mass Spectrometry

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Simulated and developed an electron impact ionization source for space miniature time-of-flight mass spectrometer

Cited by 11 publications

References 17 publications

Portable mass spectrometry system: instrumentation, applications, and path to ‘omics analysis

Portable mass spectrometry system: instrumentation, applications, and path to ‘omics analysis

Applications of Vacuum Measurement Technology in China’s Space Programs

Research and implementation of the adaptive control method for emission current of electron ionization ion source

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