Search Results - "O. Lill J."

Aalto-1, multi-payload CubeSat: In-orbit results and lessons learned by Mughal, M. Rizwan, Praks, J., Vainio, R., Janhunen, P., Envall, J., Näsilä, A., Oleynik, P., Niemelä, P., Nyman, S., Slavinskis, A., Gieseler, J., Jovanovic, N., Riwanto, B., Toivanen, P., Leppinen, H., Tikka, T., Punkkinen, A., Punkkinen, R., Hedman, H.-P., Lill, J.-O., Slotte, J.M.K.

“…The in-orbit results and lessons learned of the first Finnish satellite Aalto-1 are briefly presented in this paper. Aalto-1, a three-unit CubeSat which was…”
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Aalto-1, multi-payload CubeSat: Design, integration and launch by Praks, J., Mughal, M. Rizwan, Vainio, R., Janhunen, P., Envall, J., Oleynik, P., Näsilä, A., Leppinen, H., Niemelä, P., Slavinskis, A., Gieseler, J., Toivanen, P., Tikka, T., Peltola, T., Bosser, A., Schwarzkopf, G., Jovanovic, N., Riwanto, B., Kestilä, A., Punkkinen, A., Punkkinen, R., Hedman, H.-P., Säntti, T., Lill, J.-O., Slotte, J.M.K., Kettunen, H., Virtanen, A.

“…The design, integration, testing and launch of the first Finnish satellite Aalto-1 is briefly presented in this paper. Aalto-1, a three-unit CubeSat, launched…”
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Information depths of analytical techniques assessing whitefish otolith chemistry by Lill, J-O., Finnäs, V., Heimbrand, Y., Blass, M., Fröjdö, S., Lahaye, Y., Slotte, J.M.K., Nyman, J., Jokikokko, E., von Numers, M., Hägerstrand, H.

“…The elemental composition of otoliths provides historical information on migration and provenance of fish. Due to the complex structure of the otoliths, the…”
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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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Provenance of whitefish in the Gulf of Bothnia determined by elemental analysis of otolith cores by Lill, J-O., Finnäs, V., Slotte, J.M.K., Jokikokko, E., Heimbrand, Y., Hägerstrand, H.

“…The strontium concentration in the core of otoliths was used to determine the provenance of whitefish found in the Gulf of Bothnia, Baltic Sea. To that end, a…”
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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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Proton energy determination using activated yttrium foils and ionization chambers for activity assay by Avila-Rodriguez, M.A., Rajander, J., Lill, J.-O., Gagnon, K., Schlesinger, J., Wilson, J.S., McQuarrie, S.A., Solin, O.

“…Excitation functions of the 89Y(p, xn) nuclear reactions were measured up to 18 MeV by the conventional activation method using the stacked-foil technique, and…”
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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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Charge integration in external-beam PIXE by Lill, J.-O

“…Direct measurements of the beam current in external-beam PIXE are difficult due to the ionization of air molecules. A method for indirect charge integration…”
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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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Ion beam characterisation of paint layers made according to late 18th century techniques by Lill, J.-O., Ström, M., Brenner, M., Lindroos, A.

“…External beam particle-induced X-ray emission (PIXE) and PIGE were applied in a study of layered paint structures. A series of layered paint samples were…”
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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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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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Activity of the 7Be isotope in plants from south-west Finland by Lonnroth, T, Kallman, K-M, Lill, J-O, Agren, D

“…We report the measurements of 7Be activity in nine vegetable species through the detection of its 477.6 keV gamma-ray of 7Li. The plants were grown 10 km south…”
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