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Ions colliding with...
Ions colliding with polycyclic aromatic hydrocarbon clusters
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- Gatchell, Michael (author)
- Stockholms universitet,Fysikum
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- Zettergren, Henning (author)
- Stockholms universitet,Fysikum
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- Seitz, Fabian (author)
- Stockholms universitet,Fysikum
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- Chen, Tao (author)
- Stockholms universitet,Fysikum
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- Alexander, John D. (author)
- Stockholms universitet,Fysikum
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- Stocket, Mark H. (author)
- Stockholms universitet,Fysikum
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- Schmidt, Henning T. (author)
- Stockholms universitet,Fysikum
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Lawicki, A. (author)
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Rangama, J. (author)
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Rousseau, P. (author)
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Capron, M. (author)
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Maclot, S. (author)
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Maisonny, R. (author)
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Domaracka, A. (author)
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Adoui, L. (author)
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Mery, A. (author)
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Chesnel, J-Y (author)
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Manil, B. (author)
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Huber, B. A. (author)
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- Cederquist, Henrik (author)
- Stockholms universitet,Fysikum
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(creator_code:org_t)
- 2013
- 2013
- English.
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In: Physica Scripta. - 0031-8949 .- 1402-4896. ; T156, s. 014062-
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- We have measured the ionization and fragmentation of polycyclic aromatic hydrocarbon (PAH) molecules and their clusters. We find that PAH clusters containing up to roughly 100 individual molecules fragment strongly following collisions with keV ions in low or high charge states (q). For both types of collisions, singly charged PAH molecules are found to be the dominant products but for very different reasons. A high-q ion projectile charge leads to strong multiple ionization of the PAH clusters and subsequent Coulomb explosions. A low-q ion projectile charge often leads to single ionization but stronger internal heating and long evaporation sequences with a singly charged PAH monomer as the end product. We have developed a Monte Carlo method for collision-induced heating of PAH clusters and present an evaporation model where the clusters cool slowly as most of the internal energies are stored in intramolecular vibrations and not in molecule-molecule vibrations.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Gatchell, Michae ...
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Zettergren, Henn ...
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Seitz, Fabian
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Chen, Tao
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Alexander, John ...
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Stocket, Mark H.
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show more...
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Schmidt, Henning ...
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Lawicki, A.
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Rangama, J.
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Rousseau, P.
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Capron, M.
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Maclot, S.
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Maisonny, R.
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Domaracka, A.
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Adoui, L.
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Mery, A.
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Chesnel, J-Y
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Manil, B.
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Huber, B. A.
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Cederquist, Henr ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Physica Scripta
- By the university
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Stockholm University