| 1. |
- Ariyaratne, TR, et al.
(författare)
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Fast heavy ion induced photon emission from organic solids and plasma desorption mass spectrometry
- 1996
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Ingår i: INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES. - : ELSEVIER SCIENCE BV. ; 152:1, s. 31-41
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Fission fragments from a Cf-252 source have been used to study fast heavy ion induced desorption of ions and luminescence in the wavelength region 200-680 nm from samples of CsI, the amino acids valine, isoleucine and tyrosine, and of the peptide substanc
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| 2. |
- AXELSSON, J, et al.
(författare)
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ELECTRON-EMISSION FROM CONDUCTING SURFACES IMPACTED BY MULTIPLY-CHARGED POLYATOMIC IONS
- 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. ; 101:4, s. 343-356
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- In this paper, we present results on secondary electron emission from impacts of electrosprayed, multiply-charged, macromolecular ions on various conducting surfaces. The impact speeds are in the range v = 30 to 140 km/s and are above the threshold for ki
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| 3. |
- Berg, J, et al.
(författare)
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Crater formation in Langmuir-Blodgett films induced by electronic sputtering with fast heavy ions
- 1987
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Ingår i: Applied Physics Letters. - 0003-6951 .- 1077-3118. ; 51:17, s. 1379-
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Tidskriftsartikel (refereegranskat)abstract
- Secondary ion formation by fast heavy ion impact (electronic sputtering) on Langmuir–Blodgett films of fatty acids has been studied. The results show unambiguously that molecular ions originate from molecules in layers other than the surface layer. Furthermore, the results indicate that craters may be formed in electronic sputtering of such films. The depth of the craters depends on the stopping power of the incident ion and lower limits of the order of 100–200 Å are obtained from the ion data.
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| 4. |
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| 5. |
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| 6. |
- 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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| 7. |
- Daya, DDNB, et al.
(författare)
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Latent (sub-surface) tracks in mica studied by tapping mode scanning force microscopy
- 1996
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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. ; 111:1-2, s. 87-90
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- This short communication presents information on the structure of latent (i.e subsurface) tracks in muscovite mica due to single 78.2 MeV I-127 ions incident at an angle of 67 degrees with respect to the surface normal. The latent tracks have been studied
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| 8. |
- Daya, DDNB, et al.
(författare)
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Radiation damage features on mica and L-valine probed by scanning force microscopy
- 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. ; 106:1-4, s. 38-42
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The radiation damage tracks on the surface of muscovite mica due to single 78.2 MeV I-127 ions from the Uppsala EN tandem accelerator have been studied using tapping mode scanning force microscopy (TM-SFM). Conically-shaped hillocks having nearly circular
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| 9. |
- Daya, DDNB, et al.
(författare)
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Scanning force microscopy study of surface tracks induced in mica by 78.2-MeV I-127 ions
- 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. ; 103:4, s. 454-465
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Tapping mode scanning force microscopy has been employed for the first time to image the radiation damage tracks on muscovite mica due to individual, normally incident 78.2-MeV I-127 ions from the Uppsala EN tandem accelerator. Conical-shaped hillocks hav
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| 10. |
- Ehring, H, et al.
(författare)
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Excited state relaxation processes of MALDI-matrices studied by luminescence spectroscopy
- 1996
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Ingår i: APPLIED SURFACE SCIENCE. - : ELSEVIER SCIENCE BV. - 0169-4332. ; 96-8, s. 577-580
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The process of matrix-assisted laser desorption/ionization (MALDI) has been investigated by studying the luminescence of the matrix molecules after W-laser irradiation A grating spectrograph equipped with an optical multichannel analyzer (OMA) has been us
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