Teknillinen korkeakoulu. Fysiikan laboratorio

name

• Teknillinen korkeakoulu. Fysiikan laboratorio

Authored works

• Activity report 1996
• Activity report 1997
• Activity report 1999
• Activity report 2001
• Activity report 2002
• Activity report 2003
• Activity report 2005
• Activity report : 1992
• Annual report : 1978
• Fysiikan laboratorion toimintakertomus : 1977

Works contributed to

• A high intensity [sup 58]Co slow-positron beam and applications to probe near-surface disorder
• A latched constant fraction discriminator and its use in time resolution studies
• A multi-state model for the density dependence of ortho-positronium annihilation rate in gases
• A positron study on the effect of C, Cu, Ni and Sb on the defect annealing in cold-rolled iron
• A scattering approach to the decay of metastable states
• A study of the kinetics of excitons and carriers in Cu2O [copper oxide]
• Accuracy of the one-term Gaussian representation for core electrons in calculating experimental valence charge density of KC1
• Amorfiset metallit ja puolijohteet : sovelletun fysiikan seminaari, materiaalifysiikan seminaari : kevät 1984
• An illustration of the sample in neutron measurement of moisture
• Aspects of fracture processes in paper
• Asymptotic double photoexcitation cross sections of the helium atom
• Atomistic modelling of anisotropic etching of crystalline silicon
• Atomistic simulations of magnetic shape memory alloys
• Atoms embedded in an electron gas : phase shifts and cross sections
• Behaviour of Raman resonance scattering across the K x-ray absorption edge
• Calculations of relativistic atomic scattering factors using a Dirac-Fock program and intermediate coupling
• Characterization of atomic defects by positron annihilation
• Characterization of defects in InP single crystals
• Characterization of native vacancies in epitaxial GaN and ZnSe semiconductor layers by positron annihilation spectroscopy
• Classical and coupled quantum-classical simulations : applications to chemical reactions and film growth
• Comment on soft X-ray absorption by alkali halide crystals
• Computational modelling of atomic-scale defect phenomena : compound semiconductors and graphite
• Computer simulation studies of the catalytic oxidation of carbon monoxide on platinum metals
• Computer simulations of radiation damage in amorphous solids
• Configuration interaction in the chlorine L[sub 2, 3] radiative Auger spectrum of alkali chlorides
• Configuration interaction on x-ray scattering of light atoms
• Dc electroluminescence in InSn[sub x]O[sub y]-Ta[sub 2]O[sub 5]-ZnS:Mn-Ta[sub 2]O[sub 5]-A1 thin film structures
• Decay of autoionizing states
• Defect complexes in silicon : electronic structures and positron annihilation
• Defects in heteroepitaxial structures studied with monoenergetic positrons : large lattice mismatch systems Cu/Ag(111) and Ag/Cu(111)
• Density-functional approaches to interacting electrons in quantum dots
• Design of a high intensity electron gun and its focusing system
• Detection of Ga vacancies in electron irradiated GaAs by positrons
• Development of instrumentation and methods for positron spectroscopy of defects in semiconductors
• Diffusion and growth of steps and islands on surfaces
• Diffusive dynamics of chainlike molecules on surfaces
• Diffusive dynamics of interacting particles in equilibrium and under hydrodynamic sedimentation
• Direction-dependent initial state relaxation in oxygen K x-ray emission
• Disordered systems and optimization : elastic lines and random magnets
• Diss. (Lab. Phys., Hels. Univ. Technol.)
• Electron double ionization cross section in sodium obtained from K[alpha][sup]h hypersatellite spectra
• Electron-hole interaction effets in the KL[sub 2,3]L[sub 2,3] radiative Auger spectrum of insulators
• Electronic polarizability of small metal spheres
• Electronic structure and positron states at vacancies in Si and GaAs
• Electronic structure calculations for vacancies and oxygen-related defects in semiconductors
• Embedded-atom calculations of Auger and X-ray photoemission shifts for metallic elements
• Emission current stabilizer from X-ray tubes with ac heated filaments
• En undersökning av hur bor och mätvolymen inverkar vid neutronmätning av fukten
• Energies and chemical shifts of the sulphur ls level and the KL[sub 2]L[sub 3]([sup 1]D[sub 2]) Auger line in H[sub 2]S and SF[sub 6]
• Evidence of radiative auger transitions in the free argon atom
• Experimental electronic valence charge density of NaC1 and SrC1[sub2] along the nearest neighbour axis
• Experimental separation of K[alpha][sub1] and K[alpha][sub2] components in x-ray line profile analysis
• Experimental study of positronium bubble in helium fluids
• Experimental verification of radiative Auger transitions in X-ray emission spectra
• Explanation of contrast effects in synchrotron x-ray topographs of bent crystals by means of multiple diffraction
• Ferromagnetism in (Ga,Mn)As and (Ga,Mn)N
• First principles calculations for doping and metastability in semiconductors
• First principles calculations for point defects in 2H-, 3C- and 4H-SiC polytypes
• First-principles electronic structure calculations : defects in metals, nitrides and carbides
• Geometrodynamics
• Geometroelectrodynamics
• Graafinen spektrinkäsittelyohjelmistojärjestelmä
• Ground state structure, domain walls, and external field response in random magnets
• Growth and properties of diamond and diamond-like materials
• Helsinki University of Technology, Laboratory of Information Processing Science : Series B, Internal reports
• Hitaat positronit
• Hiukkaskiihdyttimet hyötykäyttöön
• Hydrogen chemisorbed on nickel surfaces : a wave-mechanical approach
• Identification of point defect structures in semiconductors by positron annihilation : application to silicon and compound semiconductors
• Indium and phosphorous vacancies and antisites in InP
• Inelastic x-ray scattering including resonance phenomena
• Inelastic x-ray scattering including resonance phenomena
• Influence of electronic and ionic polarization on core hole properties of solid : radiative and radiationless KL[sub 2,3]L[sub 2,3] transitions
• Information-theoretical description of heavy-ion -atom collisions
• Interacting electrons in a quantum dot : quantum Monte Carlo studies
• Island growth and step instabilities on flat and vicinal surfaces
• K [limes] m[sup 2] radiative Auger effect in transition metals 1
• K[alpha] hypersatellites in photon excitation for elements with Z = 12, 23 - 26
• K[alpha][sup h] hypersatellite spectra in photon excitation and K shell double photoionization cross sections for transition metals Ti, Cr, Fe and Ni
• K[alpha][sup h] hypersatellite spectrum and electron double ionization cross section of the K-shell in Mg
• K[alpha]h hypersatellite spectra and K shell douple photoionization cross sections of elemental Mg, V, Cr, Mn and Fe
• Kosteuden määrittämisen menetelmät keraamisessa teollisuudessa : kommentteja Nordforsk-projektiin marraskuussa 1979
• Laser induced recrystallisation and defects in ion implanted hexagonal SiC
• Linewidths in X-ray photoemission and X-ray emission spectroscopies : what do they measure?
• Liquid-phase epitaxial growth of GaInAsP/InP laser crystals
• Localization of orthopositronium in argon
• Localized state of positron in argon
• Magnesia overlayers on Co(001) : growth mode and CO chemisorption properties
• Maximum entropy theory of recoil charge distributions in electron capture collisions
• Measurement of the electron double ionization cross section of the K-shell in Cr and Fe
• Modeling momentum distributions of positron annihilation radiation in solids
• Modeling of electronic transport in nanostructures
• Modernin fysiikan laskuharjoitukset
• Molecular dynamics using tight-binding approximation
• Multiple diffraction lines in the synchrotron x-ray topographs of elastically bent silicon single crystals
• Multiscale modeling of biological and soft matter
• Multistereo synchrotron x-ray topography
• Muon states in uniaxially strained iron
• Near-surface defect profiling with slow positrons
• Near-surface disorder studied with slow positrons
• Neutron and gamma methods for the measurement of moisture in peat soils
• Neutroni- ja gammamittauksia turpeesta vuonna 1975
• Nonequilibrium dynamics in fiber networks, aggregation, and sand ripples
• Observation of the KL[sup 2] ->L[sup 2]V x-ray satellite multiplet structure in metallic Mg
• On the repulsive interaction of the helium atom with a metal surface
• Photoabsorption of atoms inside C[sub 60]
• Pintafysiikka : sovelletun fysiikan seminaari : kevät 1983
• Positron annihilation and cluster formation in nitrogen fluid
• Positron annihilation studies of vacancy-type defects
• Positron diffusion in Mo : the role of epithermal positrons
• Positron lifetime characterization of irradiated pressure vessel model alloys
• Positron lifetime spectroscopy : digital spectrometer and experiments in SiC
• Positron mobility in Si at 300 K
• Positron study of native vacancies in doped and undoped GaAs
• Positron trapping in semiconductors
• Positron trapping rate into small vacancy clusters and light substitutional impurities
• Proceedings of the International Workshop "Slow positrons in surface science" Pajulahti Sports Institute, Finland, June 25-29, 1984
• Profiling multilayer structures with monoenergetic positrons
• Radiative Auger emission spectra of sodium metal and oxide
• Radiative K->M[sup 2] transitions in solids
• Real-space electronic structure calculations for nanoscale systems
• Relativistic effects in the calibration of electrostatic electron analyzers : 2, Parallel plate and cylindrical mirror analyzers
• Relativistic intensity analysis of the L[alpha] X-ray satellite spectra for metallic Zr, Rh and Ag
• Relativistic theory of x-ray satellites
• Relaxation and final-state channel mixing in the Auger effect
• Resonance x-ray Raman effect
• Role of the dispersion correction in analysis of X-ray diffraction data
• S KLL Auger spectra of gaseous sulphur compounds
• Scanning tunneling and atomic force microscopy studies of organic thin films, synthetic polymers and lignocellulosics
• Shaking processes in beta decay
• Simple automatic devise for controlling functions of one variable
• Slow light-evoked voltage transients across the frog retina : D.C. recorded kinetics and effects of enzyme inhibitors
• Some considerations for soil moisture gauging with neutrons
• Sputtering damage in Mo(111) studied by slow positrons and computer simulations
• Statistical physics of random systems with applications to surface reactions
• Statistical theory of electronic Raman resonance scattering by oriented atoms
• Stochastic analysis of ion-atom collision processes
• Studies of adsorbate structures and reactions on cobalt
• Surface bonding : from molecules to microparticles
• Synchrotron x-ray topography : a multistereoscopic imaging technique
• Synkrotronitopografiaan tarkoitettu televisiokuvauslaitteisto
• Teknillinen korkeakoulu. Fysiikan laboratorio. Research report
• Temperature dependence of positron diffusion in cubic metals
• Test of the relativistic analogue of intermediate coupling
• The atomic scattering factors of Cu and Al from thermal diffuse scattering measurements
• The deformations of the ions in NaCl and AgCl crystals and the temperature parameters of ion in some alkali halides
• The influence of chemical bonding on the low-energy K[alfa] spectrum of silicon
• The K emission spectrum of Ti, TiO[sub 2] and TiC in fluorencence
• The K[alpha] and K[beta] x-ray spectra of sodium in metal and some compounds
• The low-energy structure of the K[alfa] line in primary and secondary excitation
• The origin of the K[beta sub 5] line in the X-ray emission spectrum of K[sup +] in KF, KCl and KBr
• The X-ray atomic scattering factors of aluminium powder at 80 K
• The X-ray atomic scattering factors of vanadium powder at 300 K, 80 K and 4 K measured in an absolute scale
• Theoretical aspects of positrons in imperfect solids
• Theory of atomic structure and decsy of inner-shell hole states
• Theory of hydrogen and helium impurities in metals
• Theory of the Auger effect
• Theory of X-ray satellites
• Thin Cu/Ag(111) and Ag/Cu(111) structures studied with monoenergetic positrons
• Thin films for slow positron generation
• Transport model for hot positrons in layered structures
• Two-electron jumps in the potassium K[beta] X-ray spectrum
• Two-electron rearrangement K X-ray transitions in Na, Mg, and Al metals
• Vacancies and carbon impurities in [alpha]-iron neutron irradiation
• Vacancy defects in semiconductor materials for opto and spin electronics
• Vacancy defects in silicon related materials and gallium nitride
• Vacancy recovery and vacancy-hydrogen interaction in niobium and tantalum studied by positrons
• Vacancy-Zn complexes in InP studied by positrons
• Wave function methods for quantum dots in magnetic field
• X-ray diffraction topographic studies of small angle boundaries and dislocations in selenium and tellurium single crystals
• X-ray K[alfa] satellite spectra in primary and secondary excitation
• X-ray satellites and their interpretatiton

Works about Teknillinen korkeakoulu. Fysiikan laboratorio