ANNUAL REPORT - MTA SzFKI

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Macromolecular Compounds (Visokomoleculyarnie soedineniya, in Russian and translated); accepted for publication J.29. J.30. J.31. J.32. J.33. Petrenko * VI, Avdeev * MV, Aksenov * VL, Bulavin * LA, Rosta L; Structure of magnetic fluids with surfactant excess by small-angle neutron scattering; J Surf Investigation, X-ray, Synchrotron and Neutron Techniques; accepted for publication Rosta L, Füzi J, Török Gy; Design of focusing SANS spectrometer at BNC; Meas Sci & Techn; accepted for publication Káli Gy, Sánta Zs, Bleif * HJ, Mezei F, Rosta L, Szalók * M; Commissioning of the high resolution TOF diffractometer at the Budapest Research Reactor; Zeitschrift für Kristallographie; accepted for publication Trounov * VA, Sokolov * AE, Lebedev * VT, Smirnov * OP, Kurbakov * AI, Van den Heuvel * J, Batyrev * E, Yuryeva * TM, Plyasova * LM, Török Gy: Detection of hydrogen-copper clusterization in compunds Zn 1-x Cu x O using neutron scattering methods; Fizika Tverdogo Tela (tranlated to Physics of the Solid State); accepted for publication Veres T, Cser L, Ferencz K; Investigation of the effect of oil contamination on the reflectivity of neutron supermirrors, Meas Sci & Techn; accepted for publication Articles in Hungarian J.34. J.35. Len A; A kisszögű neutronszórás archeometriai alkalmazási lehetőségei (Possible applications of small angle neutron scattering in archaeometry, in Hungarian); Archeometriai Műhely, Elektronikus folyóirat; Magyar Nemzeti Múzeum - http://www.ace.hu/am/2006_2/AM-2006-2-LA.pdf ; pp. 27-31, 2007 Sánta Zs; Nagyfelbontású Repülési-idő diffraktométer a Budapesti Neutron Kutatóközpontban (High resolution time-of-flight diffractometer at the Budapest Neutron Centre, in Hungarian); Archeometriai Műhely, Elektronikus folyóirat; Magyar Nemzeti Múzeum - http://www.ace.hu/am/2006_2/AM-2006-2-LA.pdf; pp. 22-26, 2007 Book chapters J.36. J.37. Füzi J; Neutron beam phase space mapping, In: Modern Developments in X-Ray and Neutron Optics; Eds: Erko A, Krist Th, Idir M, Michette AG, Springer; 15 pages, accepted for publication Mezei F; New perspectives from new generations of neutron sources; In: Comptes Rendus Physique; Eds: de Novion Ch, Hennion M, Muttka H, Elsevier; accepted for publication 50
K. NEUTRON SCATTERING L. Pusztai, M. Fábián # , P. Jóvári, I. Harsányi, L. Kőszegi, Gy. Mészáros, V. Mile # , Sz. Pothoczki # , E. Sváb, L. Temleitner Liquids. — Neutron and X-ray diffraction results obtained for liquid carbon dioxide, CO 2 , have been modelled by means of the reverse Monte Carlo method. Partial pair correlation functions, centre–centre pair correlation functions and relative orientations of molecular axes as a function of distances between molecular centres have been calculated from the models. It was found that well defined orientational correlations exist in the liquid state. Close to the critical point, these correlations seem to disappear, but further away from the critical point, in the high density supercritical state, they reappear. Using large particle configurations, the density fluctuations close to the critical point could be visualized, as demonstrated by Figure 1. (a) 18 g Si-O (r) 12 6 Si - O (b) 6 4 2 g O-O (r) O-O (c) 6 g Si-Si (r) 4 2 Si - Si 0 0 1 2 3 4 5 6 r(Å) 0 1 2 3 4 5 6 r(Å) 0 2 3 4 5 6 r(Å) g Na-O (r) (d) 3 Na - O 2 1 0 1 2 3 4 5 6 The coherent static structure factor of water has been investigated by polarized neutron diffraction. Polarization analysis allows us to separate the huge incoherent scattering background from hydrogen and to obtain high quality data of the coherent scattering from four different mixtures of liquid H 2 O and D 2 O. Consistency with existing partial radial distribution functions, derived without the application of polarized neutrons, was checked by incorporating them into our reverse Monte Carlo calculations. It appeared that the partials from the literature are not entirely consistent with our new polarised neutron data. Reverse Monte Carlo calculations have been carried out to model the structure of aqueous RbCl solutions, as a function of salt concentration. Neutron and X-ray diffraction data were combined with various constraints concerning the coordination of chloride anions. It could be established that increasing ionic concentration causes increasing distortions to the hydrogen bonded network of water molecules—that is, RbCl is a ‘structure breaker’, although to a smaller extent than, for instance, LiCl. For the Rb cations a quite well # Ph.D. student r(Å) (e) 3 g Si-Na (r) 2 1 Si - Na 0 2 3 4 5 6 r(Å) (f) 4 3 2 1 Na - Na 0 2 3 4 5 6 Fig. 1. Two-dimensional projections of atomic density maps for gaseous (g), near-critical and high density supercritical fluid (sc) and normal liquid (l) CO 2 . The pictures were taken on 3–4 Å thick layers (depending on the edge length of the simulation cell), containing roughly 240 molecules. g Na-Na (r) r(Å) 51
Page 1 and 2: ANNUAL REPORT 2007 RESEARCH INSTITU
Page 3 and 4: Dear Reader, It is my pleasure to h
Page 5 and 6: Key figures Permanent staff of the
Page 8 and 9: A. STRONGLY CORRELATED SYSTEMS J. S
Page 10 and 11: presented detailed study should hel
Page 12 and 13: B. COMPLEX SYSTEMS F. Iglói, R. Ju
Page 14 and 15: B.3. B.4. B.5. B.6. B.7. B.8. B.9.
Page 16 and 17: the α2 reconstruction increases on
Page 18 and 19: C.2. C.3. Kádas K, Vitos L, Johans
Page 20 and 21: C.27. Ropo * M, Kokko * K, Punkkine
Page 22 and 23: I 25 4 3 Fig. 2. Average intensity
Page 24 and 25: See also H.6. and nanostructured Pd
Page 26 and 27: Ab initio structure solution. — I
Page 28 and 29: ESA PECS 98021 Phase field modeling
Page 30 and 31: Conference proceedings E.17. Oszlá
Page 32 and 33: Fig. 1. ns-EC to s-EC transition in
Page 34 and 35: Publications Articles F.1. F.2. Bö
Page 36 and 37: G. ELECTRON CRYSTALS G. Kriza, P. M
Page 38 and 39: H. METAL PHYSICS K. Tompa, I. Bakon
Page 40 and 41: thickness can be elucidated by deco
Page 42 and 43: I. METALLURGY AND MAGNETISM L.K. Va
Page 44 and 45: temperature profile increases the s
Page 46 and 47: I.13 Kane * SN, Khinchi * SS, Gercs
Page 48 and 49: SANS. The measured 3 control rods w
Page 50 and 51: J.3. J.4. J.5. J.6. J.7. Avdeev * M
Page 54 and 55: defined coordination sphere was fou
Page 56 and 57: László Temleitner temla@szfki.hu
Page 58 and 59: Book chapter K.22. Temleitner L, Pu
Page 60 and 61: Fig. 1 Characteristics of surface p
Page 62 and 63: M. LASER PHYSICS K. Rózsa, G. Bán
Page 64 and 65: Publications Articles M.1. Sigenege
Page 66 and 67: O. LASER APPLICATION A. Czitrovszky
Page 68 and 69: Raman spectroscopy is widely used f
Page 70 and 71: Bilateral Austro-Hungarian Cooperat
Page 72 and 73: P. FEMTOSECOND LASERS R. Szipőcs,
Page 74 and 75: Grants and international cooperatio
Page 76 and 77: E-Mail: Kárpát Ferencz optilab@t-
Page 78 and 79: y optical microscopy. While in Y 2
Page 80 and 81: Publications: Articles R.1. Földv
Page 82 and 83: S. CHARACTERIZATION AND POINT DEFEC
Page 84 and 85: groups of the Li 2 B 4 O 7 lattice.
Page 86 and 87: S.10. Lengyel K, Kovács L, Péter
Page 88 and 89: entanglement one has to find method
Page 90 and 91: T.7. T.8. T.9. Asbóth JK, Domokos
Page 92 and 93: EDUCATION Graduate and postgraduate
Page 94 and 95: Laboratory practice and seminars
Page 96 and 97: G. Dravecz (ELTE and Université de
Page 98 and 99: ⎯ K. Kamarás: Editorial Board Me
Page 100 and 101: CONFERENCES ⎯ Electrochemistry se
Page 102:
TABLE of CONTENTS PREFACE 1 KEY FIG
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ANNUAL REPORT - MTA SzFKI

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