ATOMKI

Annual Report

2010



INSTITUTE OF NUCLEAR RESEARCH
OF THE HUNGARIAN ACADEMY OF SCIENCES
DEBRECEN, HUNGARY
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Table of contents
Preface i
Organizational structure of ATOMKI ii
Data on ATOMKI iii
International connections iv
Running research projects, grants iv
Higher education activity iv
Finance v
Table of contents vi
Featured:
Hertelendi Laboratory of Environmental Studies 1
1. General Physics
1.1 Asymptotic properties of solvable PT-symmetric potentials 30
2. Particle Physics
2.1 Renormalization of QCD2 31
2.2 Phase Structure and Compactness 32
3. Nuclear Physics
3.1 Total reaction cross sections from elastic R-nucleus scattering angular distributions around the Coulomb barrier 33
3.2 Nuclear structure study of 19,21N nuclei by γ spectroscopy 34
3.3 Parameters of the isobar analog resonance in complex optical potential 36
3.4 Towards a high precision astrophysical S-factor measurement for the 3He+4He reaction 37
3.5 Alpha-induced reaction cross section measurements on 151Eu for the astrophysical γ-process 38
3.6 Shell or cluster structure 39
3.7 Observation of γ-band structure in 104Pd 40
3.8 Rotational band structure of the chiral candidate 134Pr 41
3.9 Electric dipole moments in 230,232U and implications for tetrahedral shapes 42
3.10 High resolution study of SDR in 40Sc isotope 43
3.11 Determination of conversion coefficients in low-energy γ rays of 132La 44
3.12 Mass and angular distribution of the fission fragments from 236U hyperdeformed states studied with a new fission fragment detector called OBELISK 45
3.13 Target structure induced suppression of the ionization cross section for very low energy antiproton-hydrogen collisions 46
3.14 Ionization of the hydrogen atom by short half-cycle pulses: dependence on the pulse duration 47
3.15 Ionization of the water by intense ultrashort half-cycle electric pulses 48
3.16 The Newcomb – Benford law and nuclear half-lives 49
4. Atomic and Molecular Physics
4.1 Classical trajectory Monte Carlo model calculations for ionization of atomic hydrogen by 75 keV proton impact 50
4.2 Two-electron cusp in the double ionization of helium 51
4.3 L3-subshell alignment of Au and Bi in collisions with 12–55-MeV carbon ions 52
4.4 Ab initio treatment of charge exchange in H+ + CH collisions 53
4.5 Studying the electron components of the ECR plasma by plasma photographs 54
4.6 The developement of an electrostatic spectrometer for low energy ions 55
4.7 Effusive molecular gas jet target for molecule fragmentation experiments 56
4.8 A new VdG-5 beamline for studying ion-atom and ion-molecule collisions 57
4.9 Guided transmission of Ne7+ ions through nanocapillaries in polymers: Dependence on the capillary diameter 58
4.10 Ion guiding accompanied by formation of neutrals in PET polymer nanocapillaries: Further insight into a self-organizing process 59
4.11 Emission of H- fragments from collisions of OH+ ions with atoms and molecules 60
5. Condensed Matter
5.1 Determination of hydrogen concentration in a-Si and a-Ge layers by elastic recoil detection analysis 61
5.2 Effect of temperature on the mutual diffusion in Ge/GaAs and GaAs/Ge systems 62
5.3 Depth profile analysis of solar cells by Secondary Neutral Mass Spectrometry using conducting mesh 63
5.4 AR-HAXPES for determining Effective Attenuation Length of electrons 64
6. Materials Science and Analysis
6.1 Transmission of electrons through a single glass macrocapillary: energy dependence 65
6.2 Time dependence of electron transmission through a single glass macrocapillary 66
6.3 Thin Layer Activation Technique under the Free Handling Limit 67
6.4 Optical properties of silver thin films, derived from REELS 68
6.5 Interaction potentials for fast atoms in front of Al surfaces probed by rainbow scattering 69
7. Earth and Cosmic Sciences, Environmental Research
7.1 Groundwater dating down to the milliliter level 70
7.2 Rapid graphite target preparation with sealed tube zinc reduction method for C-14 dating by MICADAS 71
7.3 Investigation of radioisotopes in different organisms around Paks NPP 72
7.4 Development of procedure for the separation of 107Pd from L/ILW radioactive waste material produced by the Hungarian NPP 73
7.5 Advancing the use of noble gases in fluid inclusions of speleothems as a palaeoclimate proxy: method and standardization 75
7.6 A 9-year old record and analysis of stable isotope ratios of precipitation in Debrecen 76
7.7 Investigation of indoor aerosols at educational institutions in Debrecen, Hungary 77
7.8 Study of emission episodes of urban aerosol by ion beam analytical techniques 78
7.9 Study of the sap flow and related quantities of oak trees in field experiments 79
8. Developments of Methods and Instruments
8.1 Status Report on the Accelerators Operation 80
8.2 Laboratory background in an escape-suppressed germanium γ-ray detector at a shallow underground laboratory 83
8.3 Beam divergence of the proton microprobe 84
8.4 The CHARISMA project in ATOMKI 85
9. Appendix
9.1 Events 86
9.2 Hebdomadal Seminars 87
9.3 Awards 89
9.4 List of Publications 90
  9.4.1 Highlights 90
  Nanochannel alignment analysis by scanning transmission ion microscopy 91
  Interference effect in the dipole and nondipole anisotropy parameters of the Kr 4p photoelectrons in the vicinity of the Kr (3d)-1 → np resonant excitations 92
  An exactly solvable Schrödinger equation with finite positive position-dependent effective mass 93
  Reactor Decay Heat in 239Pu: Solving the γ Discrepancy in the 4–3000-s Cooling Period 94
Author index 95