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Stopping power measurements of 0.5–10.5 MeV 7Li ions in polyimide, vyns, formvar, and polysulfone (1999)

Munnik, F.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 86 (1999), S. 3934-3938

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Accurate stopping powers for 7Li ions in four (co)polymers were measured using the transmission technique in the energy range of 0.5–10.5 MeV. The estimated uncertainty in the stopping power values is ∼2.5%. A comparison of the experimental data is made with various parametrizations of the stopping power found in the literature. Deviations of the parametrizations from our experimental data range from 5 to 20%. © 1999 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.371310

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Digitale Medien

Stopping powers of 200–3200 keV 4He and 550–1550 keV 1H ions in polyimide (1996)

Plompen, A. J. M. ; Munnik, F. ; Räisänen, J. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 80 (1996), S. 3147-3154

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Accurate stopping powers of polyimide have been determined for mean energies (E) in the range of 200 keV≤E≤3200 keV for 4He ions and 550 keV≤E≤1550 keV for 1H ions, using the transmission method for foils with areal densities of 30–225 μg/cm2. The overall uncertainties of ∼2% are mainly due to the foil thickness determination. The present data have been parametrized and compared to results obtained by previous authors in the upper energy range and to various parametrizations found in the literature. The best description of the data is given by Bragg's rule calculations using parametrized elemental stopping powers that were derived from large data sets (deviations 〈2%). No support is found for the cores-and-bonds model showing deviations of 3%–5%, that may be due to the neglect of phase state effects. © 1996 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.363277

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