Ionization and fragmentation of fluorene upon 250 keV proton impact
Ionization and fragmentation of fluorene upon 250 keV proton impact
复制标题
250 keV 质子撞击时芴的电离和碎裂
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
L. Tribedi
中科院分区：
文献类型：
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作者：
C. Bagdia;S. Biswas;A. Mandal;S. Bhattacharjee;L. Tribedi
摘要 我们研究了多环芳烃分子芴 ( $$hbox {C}_{{13}},hbox {H}_{{10}}$$ C 13 H 10 ) 在能量 250 keV 的质子撞击下的电离和碎裂。已鉴定出各种电离和碎裂产物。已发现单电离和双电离母体分子的氢损失过程是主要通道。在单电离分子的情况下，已观察到多达三个 H 损失。然而，尚未观察到两个H-损失离子。对于双电离分子，已观察到多达四次 H 损失。与原子目标（例如 He 和 Ne）相比，双电荷母离子与单电荷母离子的比率被发现相当高。图文摘要
Abstract We have investigated the ionization and fragmentation of a polycyclic aromatic hydrocarbon molecule, fluorene ( $$hbox {C}_{{13}},hbox {H}_{{10}}$$ C 13 H 10 ), upon proton impact with energy 250 keV. Various ionization and fragmentation products have been identified. Hydrogen-loss process from singly and doubly ionized parent molecules has been found to be a dominating channel. In case of singly ionized molecule, up to three H-losses have been observed. However, two H-loss ion has not been observed. For the doubly ionized molecule up to four H-losses have been observed. The ratio of doubly to singly charged parent ions are found to be quite high compared to the atomic targets, such as, He and Ne. Graphical abstract