12^th International Workshop on Positron and Positronium Chemistry

Opening session (Chair: R. Zaleski)

Welcome from A. Szymczyk (Vice Mayor of the City of Lublin)

Welcome from R. Dobrowolski (Vice Rector of MCSU)

A. Alam In memoriam

Fundamental aspects I (Chair: S. Stepanov)

G. Consolati Positronium for antihydrogen production: the AEGIS experiment

J. Van Horn Positron analysis of right- and left-handed alanine single crystals (presentation)

K. Fedus Positronium formation in gases and liquids

Fundamental aspects II (Chair: G. Consolati)

S. Stepanov To the positronium formation in liquids

T. Hirade Ortho-Positronium annihilation in room temperature ionic liquids

H. Ray Collision between two atoms including Positronium and Muonium

M. Tachikawa Ab initio theoretical study of the effect of molecular vibrations on the positron-binding to polyatomic molecules

Polymers and soft matter I (Chair: F. Selim)

A. Alam Molecular mobility in glass forming matter – the role of free volume: positron annihilation perspectives for industrial applications

B. Zgardzińska A new approach to the presentation of the Positron Annihilation Lifetime Spectroscopy results.

E. Dryzek Positron annihilation in highly ordered smectic E phase of 4-hexyl 4' - isothiocyanatobiphenyl (6TCB)

Polymers and soft matter II (Chair: A. Alam)

R. Brusa Description of molecular transport in epoxy-resin and in graphene-epoxy nanocomposite by experimentally determined fractional free volume

H. Mohamed Proton conductivity and free volume properties in per-fluorinated sulfonic acid/PTFE copolymer for fuel cell

T. Kavetskyy Network properties of ureasil-based polymer matrixes for construction of amperometric biosensors as probed by PALS and swelling experiments

M. Gomaa Free volume of PVA/SSA proton exchange membrane studied by positron annihilation lifetime spectroscopy (presentation)

Polymers and soft matter III. Surfaces (Chair: H. Mohamed)

P. Pujari Positron spectroscopic studies of polymer nanocomposites: an overview

J. Bartos PALS and ESR evidence of the dynamic crossover in the amorphous phase of the crystalline n-alkanes

T. Tachibana Comparative study of positron- and electron-stimulated ion desorption from a TiO2 (110) surface

I. Mochizuki Structure determination of TiO2 crystal surfaces using total-reflection high-energy positron diffraction (TRHEPD)

M. Gorgol Aerogel IC3120 under high pressure, obtained by pistons and nitrogen molecules.

Porous materials, nanostructured and confined systems I (Chair: M. Butterling)

C. He Positronium in mesopores of silica thins films

K. Ito Nanopore structure of siloxane-silica CVD films elucidated by the low-energy AMOC technique with a radioisotope-based pulsed positron beam

O. Šauša Free-volume evolution in 1-propanol confined in partially filled regular mesopores of SBA-15 matrix

Porous materials, nanostructured and confined systems II (Chair: M. Fujinami)

B. Wang Progress of positron detection technology in IHEP and applications (presentation)

M. Butterling Investigation of the porous structure of oblique angle deposited thin films with tailored architectures

M. Liedke In-situ investigations of the curing process in ultra low-k materials

A. Attallah Porosimetry of ultra-low K materials and transformed porous glass-thin layers by Monenergetic Positron Source at ELBE facility

Porous materials, nanostructured and confined systems III, Metals (Chair: C. He)

M. Fujinami Pores in highly densified silica glass by positron annihilation spectroscopy

S. Yoshimoto Effect of heat treatment on the nanoporosity of silica PECVD films elucidated by the low-energy positron lifetime technique and ellipsometric porosimetry

J. Cizek Positronium formation in nanostructured metals

V. Krsjak Nucleation and growth of helium-vacancy clusters in ferritic-martensitic steels – effect of dpa rate

Metals, alloys, oxides and semiconductors (Chair: J. Cizek)

J. Kuriplach High entropy HfNbTaTiZr alloys: structure stability, short range order and vacancies

J. Dryzek Defect range and evolution in swift Xe-ion irradiated pure silver and titanium studied by positron annihilation techniques

V. Slugen PAS studies applied for evaluation of neutron and hydrogen treated reactor steels

L. Dubov Investigation of near-surface radiation defects in Si and W by means of conventional positron lifetime spectrometer with a 22Na positron source

Experimental and facilities I (Chair: J. Dryzek)

I. Makkonen Combining experiments and theory in positron annihilation techniques: recent advances and future prospects

K. Michishio A collimated, energy-tunable positronium beam for the investigation of positronium scattering with surfaces

S. Niedźwiecki Studies performed on previous J-PET prototypes (presentation)

Experimental and facilities II (Chair: T. Hirade)

D. Cassidy Generation of an electrostatically guided Rydberg-Ps beam

B. O'Rourke Recent research and current status of the accelerator based slow positron beam facility at AIST

Y. Kuzuya Preliminary evaluation of a brightness enhancement system of the KUR slow positron beamline

M. Silarski Studies of the discrete symmetries in the decays of positronium with J-PET tomograph

Experimental and facilities III. Metals (Chair: J. Kuriplach)

B. Jasińska New porosimetric method based on 3g/2g annihilation. Applications to material science and medical imaging

W. Egger The pulsed low energy positron beam system PLEPS: New developments and applications to polymer and membrane layers

S. Ishibashi Two-component density functional study of positron-vacancy interaction in metals and semiconductors

P. Hruska Hydrogen interaction with vacancies in Ti

N. Arutyunov Positron probing of open vacancy volume of a thermally stable phosphorus-vacancy pair in electron-irradiated silicon

Round table discussion (Moderator: P.K. Pujari)

Internal and external cooperation of the positron community

Practical applications (Chair: B. Jasińska)

P. Moskal Potential of the J-PET tomograph for multi-photon medical imaging

F. Selim Advanced positron techniques for practical applications: history, current, and future developments

G. Korcyl Online processing of tomographic data

Closing session (Chair: R. Zaleski)

F. Selim, J. Dryzek Summary

M. Pietrow Application of the theory of excitons to study of the positronium in matter. Optical transition during positronium formation in matter.

F. Wu Positron interactions with natural and synthetic chiral quartz crystals in non-z orientations

J. Franz A database for theoretical positron-molecule cross sections

E. Dryzek Positron annihilation lifetime spectroscopy of  ABS objects manufactured by fused deposition modelling

E. Dryzek Free-volume and mechanical properties of glass fibre reinforced polyamide 6 composites

X. Cao Extraction of chemical information using positron annihilation spectroscopy in metal-chitosan complex

P. Fang Study on the surface microstructure of the aged silicone rubber composite insulators by PALS

O. Melikhova Thermal development of free volumes in Nafion membrane

H. Mohamed Microstructure characterization of Nafion HP JP as a proton exchange membrane for fuel cell: positron annihilation study

M. Nippa Free volume in the strained rubber with carbon black filler by positron annihilation spectroscopy

P. Pujari Free volume characteristics and thermal properties of thin layers of poly vinyl acetate (PVAc) adsorbed on fumed Silica

V. Shantarovich Positron Annihilation and Nanoporosity of Polymeric Membranes and Sorbents (poster)

H. Švajdlenková External probing characterization in relation to relaxation dynamics: cis-1,4-poly(isoprene)

K. Čechová The combined free-volume and thermal response study of the low hydrated Ca-Montmorillonite

M. Gorgol Controlled porosity of MCM-41 obtained by partial blocking of pores by silicon oil (poster)

A. Lider Positron spectroscopy of nanodiamonds after hydrogen treatment (poster)

I. Prochazka Positronium probing of pores in zirconia nanopowders

P. Pujari Phase transition behaviour of water confined in titania mesopores

N. Sakata Pores in various kinds of zeolites by positron annihilation spectroscopy

A. Sienkiewicz Porosity of silica monoliths with tailored mesopores of ink-bottle shape determined by nitrogen adsorption and positron annihilation lifetime spectroscopy (poster)

G. Tanzi A two-particle model for Positronium confined in sub-nanometric cavities

Y. Akmalova Evaluation of e+ implantation profile for ²²Na positron source

D. Dinescu Simulations on reducing the influence of backscattered slow positrons on lifetime measurements (poster)

K. Dulski Positronium lifetime measurement using J-PET Detector

N. Gupta Reconstruction of hit-time and hit-position of annihilation quanta in J-PET detector using synchronized model signals

T. Hyodo  Surface Studies at SPF, KEK: Positron Diffraction and Positronium TOF

R. Krause-Rehberg Improvements in the Production of ²²Na Positron Sources at iThemba LABS

R. Laptev The semi-digital spectrometric system for positron spectroscopy (poster)

B. O'Rourke Development of sample holders with thin SiN windows for PALS measurement of liquid samples

M. Pawlik-Niedźwiecka J-PET detector NEMA spatial resolution studies

M. Saro Optimization of positron-lifetime measurement geometry based on Geant4 simulations

S. Sharma Time over Threshold (TOT) as a measure of Energy deposition by gamma quanta in plastic scintillator used in J-PET

Shivani Measurement of gamma quantum interaction point in plastic scintillators with WLS strips

M. Skurzok J-PET Time Callibration

P. Stepanov Developing new routine for processing two-dimensional coincidence Doppler energy spectra

T. Brodziansky Effect of the initial microstructure on defect evolution in neutron irradiated Fe-Cr-C alloys

K. Durak Positron annihilation in magnetite nanopowders prepared by coprecipitation method

A. Nozaki Dominant defects in hydrogen-embrittled iron detected by positron annihilation spectroscopy

M. Sarnek Estimate the crystallite size for nanocrystalline AISI 316L stainless steel obtained by hydrostatic extrusion method using slow positron beam.

M. Wiertel Impact of impulse shot peening parameters on properties of stainless steel surface (poster)

E. Kubicz Cardiac myxoma studies with Positron Annihilation Lifetime Spectroscopy

M. Mohammed Study the linear polarization of the positron and positronium by using the J-PET detector (poster)

K. Wysogląd Human tissue investigations using pals technique - free radicals influence