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Excitation Mechanism of Cr+60 Ions

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IMP & HIrFL Annual report 2003年 93-93页

作者： L.Che,J.Bernard,r.bredy,S.Martin Laboratoire de Spectrometrie Ionique et Moleculaire Universite Lyon 1 UMr 5579 Campus de la Doua 69622 - Villeurbanne Cedex France. Laboratoire de Spectrometrie Ionique et Moleculaire Universite Lyon 1 UMr 5579 Campus de la Doua 69622 - Villeurbanne Cedex France. Laboratoire de Spectrometrie Ionique et Moleculaire Universite Lyon 1 UMr 5579 Campus de la Doua 69622 - Villeurbanne Cedex France. Laboratoire de Spectrometrie Ionique et Moleculaire Universite Lyon 1 UMr 5579 Campus de la Doua 69622 - Villeurbanne Cedex France.

Citation of the C604+ is the same in the two collisions. The strong C+ peak produced in Ar+-C60 must be due to the elastic collisions (nuclear stopping), because the Ar+ is heavy enough to knock out the C+ from C60 molecule, In general, the excitation energy depends on the projectile velocity, charge, and mass. Direct vibronic excitation by elas-

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Excitation Mechanism of C^(r+)_60 Ions

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2003年第1期 93-93页

作者： WeiBaoren L.Che J.Bernard r.bredy S.Martin 不详 LaboratoiredeSpcctromdtrieIonlqueetMoldculaire UnlvcrsltJLyoniUMR5579CampusdelaDoua69622-VilleurbanneCedexFrance.

Citation of the C60^4+ is the same in the two collisions. The strong C+ peak produced in Ar^+-C60 must be due to the elastic collisions (nuclear stopping), because the Ar+ is heavy enough to knock out the C^+ from C60 molecule. In general, the excitation energy depends on the projectile velocity, charge, and mass. Direct vibronic excitation by elastic collisions (nuclear stopping) is predicted for slow heavy ions, while the electronic excitation (electronic stopping) is dominant for fast ions[1]. For example, Schlatholter, et al.[2] found a strong velocity effect in collisions of He^+ with fullerene in the velocity range from 0.1 to 1 a.u. With increasing velocity, the C2 evaporation process decreases and the multi-fragmentation is linearly increasing.

关键词：碳分子离子氩离子电子励磁能量弹性碰撞

Parent Initial Charge Differentiated C_(60)^(r+) Fragmentation in Low Energy He^+-C_(60) Collisions

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2004年第1期 111-111页

作者： Chen Li r.bredy J.Bernard M.C.Buchet-poulizac1 S.Martin LASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex FranceLASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex FranceLASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex FranceLASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex FranceLASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex France

In ion-fullerene C60 frontal collisions, an amount of energy is deposited in the C60 target leading to the fragmentation of the C60. Theoretical and experimental investigations have demonstrated that the fragmentation scheme of the C60 depends not only on the total excitation energy but also on the nature of the primary electronic and nuclear excitation mechanism. Up to now, the commonly accepted interpretation of the observed mass spectra obtained in ion-C60 experiments is to consider the multi-fragmentation of the C60 being mainly due to the primary electronic interaction. The efficient transfer of the electronic excitation energy towards vibronic modes induces the breakup of the C60 cage in a statistical decay process.

关键词：富勒烯C60 正面碰撞低能量破碎家长 He 激发能量离子光谱

Parent Initial Charge Differentiated C60r+ Fragmentation in Low Energy He+-C60 Collisions

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IMP & HIrFL Annual report 2004年第0期 132-132页

作者： Chen Li,r.bredy,J.Bernard,M.C.Buchet-poulizac1,S.Martin LASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex France LASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex France LASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex France LASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex France LASIM Universite Lyon1 Campus de la Dona F-69622 Villeurbanne Cedex France

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Projectile Energy Loss in Ion-C_(60) Collisions

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2004年第1期 112-112页

作者： Chen Li r. bredy J. Beranard S. Martin LASIM Universite Lyon1 Campus de la Doua F-69622 Villeurbanne Cedex FranceLASIM Universite Lyon1 Campus de la Doua F-69622 Villeurbanne Cedex FranceLASIM Universite Lyon1 Campus de la Doua F-69622 Villeurbanne Cedex FranceLASIM Universite Lyon1 Campus de la Doua F-69622 Villeurbanne Cedex France

During the last years, many investigations were devoted to low energy highly charged ion-fullerene Cgo target collisions. The Cgo is an isolated target that can be considered as an atom-like target in collisions at large distances. It behaves as a special big 'atom' with 60-7T equivalent loosely bound electrons, which makes possible the formation of hollow atoms via multiply electron capture process W. As the impact parameter is shorter than the radius of the Ceo cage, the Ceo behaves as a tiny solid target. The energy loss of projectiles in such frontal collisions is an important parameter for understanding the energy relaxation in systems wit'h a large number of degrees of freedom.

关键词：富勒烯C60 离子碰撞能量损失弹丸电子俘获过程原子碰撞自由度系统高电荷态

Projectile Energy Loss in Ion-C60 Collisions

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IMP & HIrFL Annual report 2004年第0期 133-133页

作者： Chen Li,r. bredy,J. Beranard,S. Martin LASIM Universite Lyon1 Campus de la Doua F-69622 Villeurbanne Cedex France LASIM Universite Lyon1 Campus de la Doua F-69622 Villeurbanne Cedex France LASIM Universite Lyon1 Campus de la Doua F-69622 Villeurbanne Cedex France LASIM Universite Lyon1 Campus de la Doua F-69622 Villeurbanne Cedex France

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4 - 6 Experimental Investigation of reaction Window in Double Charge Transfer Process Involving Biomolecule Target FeTPPC

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IMP & HIrFL Annual report 2010年第1期 210-210页

作者： Li Bin L. Chen Ma Xinwen r. bredy J. Bernard S. Martin Universit6 Lyon 1 CNRS LASIM UMR 5579 43 Bvd. Du. 11 Novembre 1918 F-69622 Villeurbanne France

Fragmentation of Tetraphenyl Iron（Ⅲ） Porphyrin Chloride （FeTPPCl） Induced by Slow Multi-chareed Ions

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2009年第1期 198-198页

作者： Li Bin L. Chen Ma Xinwen r. bredy J. Bernard B. Manil B. A. Huber S. Martin Universite Lyon 1 CNRS LASIM UMR 5579 43 Bvd. Du. 11 Novembre 1918 F 69622 Villeurbanne France. CIrIL-CEA/CNrS/ENSICAEN BP5133 Bid Henri Becquerel F-14070 Caen Cedex 05 France.

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重离子诱发腺嘌呤生物分子的碎裂(英文)

IMP & HIrFL Annual report 2006年 99-99页

作者：马新文 richard bredy LASIM(UMr CNrS 5579) University Lyon 1 France.

The damages of the cellular DNA induced ionizing radiation are not produced by the mere direct impact of the primary high-energy particles,also are caused by secondary species generated by the primary ioni- zing ***,it is important to understand the ionization mechanisms as well as the energy deposi- tion at the molecular *** studies involving low energy electrons or protons colliding with DNA or rNA bases have shown that the dissociation of the molecule can occur well below the ionization energy

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