| 1. |
- Daya, DDNB, et al.
(författare)
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Interaction of mev atomic ions with molecular solids: Ion track structure and sputtering phenomena
- 1997
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Ingår i: RADIATION MEASUREMENTS. - : PERGAMON-ELSEVIER SCIENCE LTD. - 1350-4487. ; 28:1-6, s. 101-110
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Recent results obtained in our research groups from studies of the interactions of swift, heavy atomic ions with molecular solids are concisely outlined. The focus is on material ejection (sputtering) and surface track formation. The experimental techniqu
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| 2. |
- Eriksson, J, et al.
(författare)
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Damage cross sections and surface track dimensions of biomolecular surfaces bombarded by swift-heavy-ions
- 1996
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Ingår i: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS. - : ELSEVIER SCIENCE BV. ; 107:1-4, s. 281-286
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We measured damage cross sections of the peptide LHRH for various MeV ions with the same velocity and compared the data with simple hit theory calculations. We employed scanning force microscopy to measure dimensions of surface tracks in amino acid L-vali
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| 3. |
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| 4. |
- ERIKSSON, J, et al.
(författare)
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HEAVY-ION-INDUCED SPUTTERING AND CRATERING OF BIOMOLECULAR SURFACES
- 1995
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Ingår i: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS. - : ELSEVIER SCIENCE BV. - 0168-583X. ; 101:1-2, s. 142-147
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We measured the electronic-stopping-power dependences of mega-electronvolt atomic-ion-induced sputtering and cratering of bio-organic targets. We employed a collector method to study relative total yields of sputtered intact peptide molecules and scanning
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| 5. |
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| 6. |
- Eriksson, J, et al.
(författare)
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Total yield and polar-angle distributions of biomolecules sputtered by fast heavy ions
- 1996
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMER INST PHYSICS. - 0163-1829. ; 54:21, s. 15025-15033
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Direct measurements of the number of peptide molecules ejected per fast heavy ion impact (total yield) and data on polar-angle distributions of the total amount of sputtered bioorganic material are presented. These data allow direct comparisons with sputt
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| 7. |
- Heszler, P, et al.
(författare)
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Photodissociation dynamics of gas-phase C-60 probed by optical emission spectroscopy
- 1996
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMER INST PHYSICS. ; 53:19, s. 12541-12544
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Fragmentation of gas-phase C-60 after 193 nm laser excitation at 300 mJ/cm(2) fluence is probed by optical emission spectroscopy. Atomic C emission at 247.85 nm, and Mulliken, Deslandres-D'Azambuja, and Swan bands from C-2 species are observed. Time-resol
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| 8. |
- Heszler, P, et al.
(författare)
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Photon emission from gas phase fullerenes excited by 193 nm laser radiation
- 1997
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Ingår i: JOURNAL OF CHEMICAL PHYSICS. - : AMER INST PHYSICS. - 0021-9606. ; 107:24, s. 10440-10445
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Continuous, black-body-type light emission is observed upon irradiation of gas phase C-60 and C-70 by 193 nm ArF excimer laser at fluences from 3 to 80 mJ/cm(2) in Ar and He ambient. Cluster temperatures are estimated by calibrating the detection system a
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| 9. |
- Papaleo, RM, et al.
(författare)
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Low-mass secondary-ion ejection from molecular solids by MeV heavy ions: Radial velocity distributions
- 1996
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMER INST PHYSICS. - 0163-1829. ; 54:5, s. 3173-3183
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Secondary ions sputtered in individual MeV ion impacts are analyzed in a high resolution time-of-flight mass spectrometer. The initial radial velocity distributions of low mass (up to m/z approximate to 300 u) positive and negative secondary ions, sputter
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| 10. |
- Papaleo, RM, et al.
(författare)
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Measurement of MeV ion track structure in an organic solid
- 1996
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Ingår i: PHYSICAL REVIEW LETTERS. - : AMER INST PHYSICS. - 0031-9007. ; 77:4, s. 667-670
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Radial velocities and effective ejection radii of hydrocarbon secondary ions sputtered electronically from polymer films have been experimentally determined. Using these data, the radial profiles of the energy and momentum density in an individual MeV ion
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