Search Results - "J. Heselius S."

Elemental analyses of pine bark and wood in an environmental study by Saarela, K.-E., Harju, L., Rajander, J., Lill, J.-O., Heselius, S.-J., Lindroos, A., Mattsson, K.

“…Bark and wood samples were taken from the same individuals of Scots pine ( Pinus sylvestris L.) from a polluted area close to a Cu–Ni smelter in Harjavalta and…”
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Temporal changes in elemental composition in decomposing filamentous algae (Cladophora glomerata and Pilayella littoralis) determined with PIXE and PIGE by Lill, J.-O., Salovius-Laurén, S., Harju, L., Rajander, J., Saarela, K.-E., Lindroos, A., Heselius, S.-J.

“…Particle-induced X-ray emission and particle-induced gamma-ray emission spectrometry were successfully applied in a study of the elemental composition of…”
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Strontium and zinc concentrations in otoliths of common fish species in the northern Baltic Sea by Lill, J.-O., Himberg, M., Harju, L., Ek, P., Lindroos, A., Wiklund, T., Gunnelius, K., Smått, J.-H., Heselius, S.-J., Hägerstrand, H.

“…Otoliths of perch (Perca fluviatilis), pike (Esox lucius) and European whitefish (Coregonus lavaretus) caught at different locations in the northern Baltic Sea…”
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Environmental monitoring of trace elements in bark of Scots pine by thick-target PIXE by Harju, L., Saarela, K.-E., Rajander, J., Lill, J.-O., Lindroos, A., Heselius, S.-J.

“…Bark samples were taken from Scots pines ( Pinus sylvestris L.) from a polluted area near a metal plant and from a relatively non-polluted site. Thick-target…”
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External-beam PIXE characterization of volcanic material used in ancient Roman mortars by Sonck-Koota, P., Lindroos, A., Lill, J.-O., Rajander, J., Viitanen, E.-M., Marra, F., Pehkonen, M.H., Suksi, J., Heselius, S.-J.

“…Volcanic deposits from two volcanic districts, Monti Sabatini (MSVD) and Colli Albani (CAVD), NW and SE of Rome, were analyzed using the particle-induced X-ray…”
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Thick-target PIGE analysis of plant materials preconcentrated by dry ashing by Saarela, K.-E., Harju, L., Lill, J.-O., Rajander, J., Lindroos, A., Heselius, S.-J.

“…Plant materials were dry ashed at 550°C and analysed using particle-induced prompt gamma-ray emission (PIGE). The analyses were performed with an external beam…”
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Increased sensitivity in thick-target particle induced X-ray emission analyses using dry ashing for preconcentration by Lill, J.-O., Harju, L., Saarela, K.-E., Lindroos, A., Heselius, S.-J.

“…The sensitivity in thick-target particle induced X-ray emission (PIXE) analyses of biological materials can be enhanced by dry ashing. The gain depends mainly…”
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Excitation functions for proton-induced reactions on natural hafnium: Production of (1(7(7)Lu for medical use by Siiskonen, T, Huikari, J, Haavisto, T, Bergman, J, Heselius, S J, Lill, J O, Lonnroth, T, Perajarvi, K, Vartti, V P

“…There is an increasing interest in using radioisotopes of rare earth elements for internal radiotherapy and for imaging in nuclear medicine. (1(7(7)Lu is one…”
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Excitation functions of proton-induced reactions in (nat)Cu in the energy range 7-17 MeV by Siiskonen, T, Huikari, J, Haavisto, T, Bergman, J, Heselius, S-J, Lill, J-O, Lönnroth, T, Peräjärvi, K

“…Elemental production cross sections were measured for (p,x) reactions on natural Cu targets, leading to the formation of (62,63,65)Zn. These reactions are…”
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Excitation functions for proton-induced reactions on natural hafnium: Production of 177Lu for medical use by Siiskonen, T., Huikari, J., Haavisto, T., Bergman, J., Heselius, S.-J., Lill, J.-O., Lönnroth, T., Peräjärvi, K., Vartti, V.-P.

“…There is an increasing interest in using radioisotopes of rare earth elements for internal radiotherapy and for imaging in nuclear medicine. 177Lu is one of…”
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Excitation functions of proton-induced reactions in natCu in the energy range 7–17MeV by Siiskonen, T., Huikari, J., Haavisto, T., Bergman, J., Heselius, S.-J., Lill, J.-O., Lönnroth, T., Peräjärvi, K.

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Static and dynamic effects in gas targets used for medical isotope production by Tárkányi, F, Takács, S, Heselius, S.-J, Solin, O, Bergman, J

“…The penetration of light charged particles in gas targets has been studied. Light emitted by atoms was recorded by using video and film techniques and the…”
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Study of seasonal variations of trace-element concentrations within tree rings by thick-target PIXE analyses by Harju, L., Lill, J-O., Saarela, K-E., Heselius, S-J., Hernberg, F.J., Lindroos, A.

“…Thick-target PIXE has been used for the quantitative determination of trace elements in annual growth rings of different tree species. A scanning device was…”
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Monitoring of chromium, copper and arsenic in contaminated soils using thick-target PIXE by Rajander, J, Harju, L, Lill, J.-O, Saarela, K.-E, Lindroos, A, Heselius, S.-J

“…Soil contamination by toxic metal ions is one of the most serious environmental problems today. In this work soil samples from an area where a wood…”
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Thick-target Pixe analysis of chromium, copper and arsenic impregnated lumber by Saarela, K-E, Harju, L, Lill, J-O, Rajander, J, Lindroos, A, Heselius, S-J

“…Chromium, copper and arsenic (CCA) have for decades been used for wood preservation. Of these elements especially arsenic is very toxic. As CCA impregnated…”
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Multi-Element Analysis of Dry-Ashed Honey Samples by Thick-Target PIXE by Saarelaa, K-E., Lill, J-O., Harju, L., Lindroos, A., Heselius, S-J.

“…Honey samples were dry ashed at 550°C and the ashes were directly analysed with the Thick-Target Particle Induced X-ray Emission (TTPIXE) technique. The…”
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Excitation functions of 3He- and α-particle induced nuclear reactions on natSb for production of medically relevant 123I and 124I radioisotopes by Tárkányi, F., Takács, S., Király, B., Szelecsényi, F., Andó, L., Bergman, J., Heselius, S.-J., Solin, O., Hermanne, A., Shubin, Yu.N., Ignatyuk, A.V.

“…Excitation functions were measured using the stacked foil irradiation technique from threshold energies to 28 MeV for 3He- and to 21 MeV for α-particle induced…”
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Preconcentration of trace elements in biological materials by dry ashing for TTPIXE analysis A study of matrix effects by Saarela, K-E., Lill, J-O., Hernberg, F.J., Harju, L., Lindroos, A., Heselius, S-J.

“…Trace elements in biological materials were preconcentrated by dry ashing at 550°C in order to improve the detection limits for thick-target PIXE analyses. The…”
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Investigation of the charged particle nuclear reactions on natural boron for the purposes of the thin layer activation (TLA) by Ditrói, F., Takács, S., Tárkányi, F., Fenyvesi, A., Bergman, J., Heselius, S.-J., Solin, O.

“…Boron of natural composition was investigated in the form of NiBSi metallic-glass foil to determine the cross-section functions of the natB(p,x) 7Be and the…”
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New experimental data on excitation functions for practical applications of alpha induced nuclear reactions on Ta up to 30 MeV by Tárkányi, F, Takács, S, Hermanne, A, Ditrói, F, Andó, L, Heselius, S.-J, Bergman, J

“…Excitation functions of the natTa(α, xn) 184m,184g,183,182m,182mg,181Re nuclear reactions have been investigated with stacked foil method up to 30 MeV to…”
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