微型离子漏斗减少低质量歧视效应的理论模拟研究

O657.63; 为减少微型离子漏斗的低质量歧视问题,本文提出了一种梯度下降射频(radio frequency,RF)信号施加方法,通过在漏斗出口端的多片电极上施加幅值递减的RF信号,提高低质荷比离子的传输效率.采用电场模拟软件SIMION和离子运动轨迹仿真软件AXSIM模拟分析微型离子漏斗在施加梯度下降RF信号时的离子传输性能.结果表明:相较于传统的RF施加方式,梯度下降RF施加方法能有效减少低质量歧视问题,且不影响高质量段的离子传输效率.另外,详细研究了在梯度下降RF施加方式下,RF的频率和直流场梯度等参数对离子传输效率的影响.进一步对梯度下降RF施加方法简化后,离子传输效率略有下降,但...

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Published in质谱学报 Vol. 44; no. 5; pp. 658 - 666
Main Authors 张涛, 朱惠君, 姚如娇, 徐恺, 仇俊炜, 陆欣鑫, 张硕, 肖育, 李晓旭
Format Journal Article
LanguageChinese
Published 苏州大学机电工程学院,江苏苏州 215021%上海卫星装备研究所,上海 200240 01.09.2023
Subjects
miniature ion funnel
ion transmission
低质量歧视
theoretical simulation
理论模拟
微型离子漏斗
low mass discrimination
梯度下降射频
gradient descent radio frequen-cy
离子传输
Online AccessGet full text
ISSN1004-2997
DOI10.7538/zpxb.2023.0013

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Abstract O657.63; 为减少微型离子漏斗的低质量歧视问题,本文提出了一种梯度下降射频(radio frequency,RF)信号施加方法,通过在漏斗出口端的多片电极上施加幅值递减的RF信号,提高低质荷比离子的传输效率.采用电场模拟软件SIMION和离子运动轨迹仿真软件AXSIM模拟分析微型离子漏斗在施加梯度下降RF信号时的离子传输性能.结果表明:相较于传统的RF施加方式,梯度下降RF施加方法能有效减少低质量歧视问题,且不影响高质量段的离子传输效率.另外,详细研究了在梯度下降RF施加方式下,RF的频率和直流场梯度等参数对离子传输效率的影响.进一步对梯度下降RF施加方法简化后,离子传输效率略有下降,但仍优于传统的RF施加方式,且降低了操作难度,提升了方案实施的可行性.
AbstractList O657.63; 为减少微型离子漏斗的低质量歧视问题,本文提出了一种梯度下降射频(radio frequency,RF)信号施加方法,通过在漏斗出口端的多片电极上施加幅值递减的RF信号,提高低质荷比离子的传输效率.采用电场模拟软件SIMION和离子运动轨迹仿真软件AXSIM模拟分析微型离子漏斗在施加梯度下降RF信号时的离子传输性能.结果表明:相较于传统的RF施加方式,梯度下降RF施加方法能有效减少低质量歧视问题,且不影响高质量段的离子传输效率.另外,详细研究了在梯度下降RF施加方式下,RF的频率和直流场梯度等参数对离子传输效率的影响.进一步对梯度下降RF施加方法简化后,离子传输效率略有下降,但仍优于传统的RF施加方式,且降低了操作难度,提升了方案实施的可行性.
Author 张涛
徐恺
朱惠君
姚如娇
仇俊炜
李晓旭
肖育
张硕
陆欣鑫
AuthorAffiliation 苏州大学机电工程学院,江苏苏州 215021%上海卫星装备研究所,上海 200240
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XIAO Yu
ZHANG Tao
ZHANG Shuo
XU Kai
LU Xin-xin
QIU Jun-wei
LI Xiao-xu
ZHU Hui-jun
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Issue 5
Keywords miniature ion funnel
ion transmission
低质量歧视
theoretical simulation
理论模拟
微型离子漏斗
low mass discrimination
梯度下降射频
gradient descent radio frequen-cy
离子传输
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