6533b834fe1ef96bd129dfaf
RESEARCH PRODUCT
Stopping powers of havar for 1.6, 2.3 and 3.2 MeV/u heavy ions
T. AlankoJ HyvönenJyrki RäisänenV KyllönenAri Virtanensubject
Nuclear physicsNuclear and High Energy PhysicsChemistryEmpirical correctionStopping power (particle radiation)Atomic physicsInstrumentationParametrizationEffective nuclear chargeIondescription
Abstract Stopping powers of havar for 28,30 Si-, 36 Ar-, 54,56 Fe- and 80,84 Kr-ions with energies of 1.6, 2.3 and 3.2 MeV/u have been determined by a transmission technique. Sample foils are exposed to the direct beams. No previous data for havar with these ions have been published. The obtained results are brought together with literature havar data for 1 H-, 4 He-, 7 Li-, 11 B-, 12 C-, 14 N-, 16 O- and 127 I-ions at the same ion velocity. The experimental data are compared with the values predicted by the SRIM-2000 parametrization using Bragg’s rule. A systematic underestimation, by 6–23%, of the experimental stopping powers was observed. The empirical correction scheme of Thwaites has been applied to the stopping power values obtained by the parametrization. The corrected values agree well with the present results. Also, the effective charge values of the various ions were deduced from the experimental set of data.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-03-01 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |