Metals and Alloys

[1] Structure of nanoscale copper precipitates in neutron-irradiated Fe-Cu-C alloys

B. Minov, M. Lambrecht, D. Terentyev, C. Domain, and M. J. Konstantinović

Phys. Rev. B 85, 024202 (2012).

[2] Positron annihilation study of the Fermi surface of Ni2MnGa

T D Haynes, R J Watts, J Laverock, Zs Major, M A Alam, J W Taylor, J A Duffy and S B Dugdale

New J. Phys. 14, 035020 (2012).

[3] The effect of neutron irradiation dose on vacancy defect accumulation and annealing in pure nickel

A.P. Druzhkov, V.L. Arbuzov, D.A. Perminov

Journal of Nuclear Materials 421, 58-63 (2012).

[4] Positron annihilation study of irradiated China domestic A508-3 steels

Xiangbing Liu, Rongshan Wang, Ai Ren, Xitao Wang, Yichu Wu, Chonghong Zhang, Ping Huang, Jing Jiang, Shuxiao Li

Procedia Engineering 27, 1618-1625 (2012).

[5] Study of ageing in Al�Mg�Si alloys by positron annihilation spectroscopy

J. Banhart, M. Liu, Y. Yong, Z. Liang, C.S.T. Chang, M. Elsayed, M.D.H. Lay

Physica B: Condensed Matter, In Press, Corrected Proof, Available online March 2012.

[6] Free volumes in bulk nanocrystalline metals studied by the complementary techniques of positron annihilation and dilatometry

Roland W�rschum, Bernd Oberdorfer, Eva-Maria Steyskal, Wolfgang Sprengel, Werner Puff, Philip Pikart, Christoph Hugenschmidt, Reinhard Pippan

Physica B: Condensed Matter, In Press, Corrected Proof, Available online January 2012.

[7] Study of PRIMAVERA steel samples by positron annihilation spectroscopy technique II � Lifetime measurements

V. Krsjak, V. Grafutin, O. Ilyukhina, R. Burcl, A. Ballesteros, P. H�hner

Journal of Nuclear Materials 421, 97-103 (2012).

[8] Atomic fraction around defects associated with nanoparticles in AlCuMg alloys

Rafael Ferragut

Physica B: Condensed Matter, In Press, Corrected Proof, Available online February 2012.

[9] Vacancy analysis in a Ni-Nb-Zr-H glassy alloy by positron annihilation spectroscopy

Mikio Fukuhara

Appl. Phys. Lett. 100, 093102 (2012).�

Semiconductors

[1] Positron annihilation studies of the AlOx/SiO2/Si interface in solar cell structures

C. J. Edwardson, P. G. Coleman, T.-T. A. Li, A. Cuevas, and S. Ruffell

J. Appl. Phys. 111, 053515 (2012).�

[2] Chemical analysis using coincidence Doppler broadening and supporting first-principles theory: Applications to vacancy defects in compound semiconductors

I. Makkonen, C. Rauch, J.-M. M�ki, F. Tuomisto

Physica B: Condensed Matter, In Press, Corrected Proof, Available online March 2012.

[3] Oxygen vacancy�induced ferromagnetism in un-doped ZnO thin films

Peng Zhan, Weipeng Wang, Can Liu, Yang Hu, Zhengcao Li, Zhengjun Zhang, Peng Zhang, Baoyi Wang, and Xingzhong Cao

J. Appl. Phys. 111, 033501 (2012).�

[4] Making highly conductive ZnO: creating donors and destroying acceptors

D. C. Look and K. D. Leedy

Proc. SPIE 8263, 826302 (2012).�

[5] Thermal process induced change of conductivity in As-doped ZnO �

S. C. Su, J. C. Fan, and C. C. Ling

Proc. SPIE 8263, 82630A (2012).

[6] Defect evolution and interplay in n-type InN

Christian Rauch, Filip Tuomisto, Arantxa Vilalta-Clemente, Bertrand Lacroix, Pierre Ruterana, Simon Kraeusel, Ben Hourahine, and William J. Schaff

Appl. Phys. Lett. 100, 091907 (2012).�

[7] Defect characterization in Mg-doped GaN studied using a monoenergetic positron beam

A. Uedono, S. Ishibashi, K. Tenjinbayashi, T. Tsutsui, K. Nakahara, D. Takamizu, and S. F. Chichibu

J. Appl. Phys. 111, 014508 (2012).�

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[8] Native cation vacancies in Si-doped AlGaN studied by monoenergetic positron beams

A. Uedono, K. Tenjinbayashi, T. Tsutsui, Y. Shimahara, H. Miyake, K. Hiramatsu, N. Oshima, R. Suzuki, and S. Ishibashi

J. Appl. Phys. 111, 013512 (2012).�

[9] The nanostructural analysis of hydrogenated silicon films based on positron annihilation studies

J. Melskens, A.H.M. Smets, S.W.H. Eijt, H. Schut, E. Br�ck, M. Zeman

Journal of Non-Crystalline Solids, In Press, Corrected Proof, Available online February 2012.

[10] Positron annihilation study of 4H-SiC by Ge+ implantation and subsequent� thermal annealing�

R.S. Yu, M. Maekawa, A. Kawasuso, B.Y. Wang, L. Wei

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 270, 47-49 (2012).

[11] Single crystal growth of Ga2(SexTe(1-x))3 semiconductors and defect studies via positron annihilation spectroscopy

N.M. Abdul-Jabbar, E.D. Bourret-Courchesne, B.D. Wirth

Journal of Crystal Growth, In Press, Corrected Proof, Available online February 2012.

[12] Structural characterization of mechanical milled ZnSe and ZnTe powders for photovoltaic devices

J. Hoya, J.I. Laborde, L.C. Damonte

International Journal of Hydrogen Energy, In Press, Corrected Proof, Available online January 2012.

[13] Low energy electron beam induced vacancy activation in GaN

H. Nyk�nen, S. Suihkonen, L. Kilanski, M. Sopanen, and F. Tuomisto

Appl. Phys. Lett. 100, 122105 (2012).

[14] Point defect evolution in low-temperature MOCVD growth of InN

Christian Rauch, �cal Tuna, Christoph Giesen, Michael Heuken and Filip Tuomisto

physica status solidi (a) 209, 87�90 (2012).

Glasses, Ceramics and Oxides

[1] Correlation of soft magnetic properties with free volume and medium range ordering in metallic glasses probed by fluctuation microscopy and positron annihilation technique

A.P. Srivastava, D. Srivastava, K. Sudarshan, S.K. Sharma, P.K. Pujari, B. Majumdar, K.G. Suresh, G.K. Dey

Journal of Magnetism and Magnetic Materials, In Press, Corrected Proof, Available online March 2012.

[2] Compositional dependences of average positron lifetime in binary As�S/Se glasses

A. Ingram, R. Golovchak, M. Kostrzewa, S. Wacke, M. Shpotyuk, O. Shpotyuk

Physica B: Condensed Matter 407, 652-655 (2012).

[3] Critical comments on speculations with open and closed �free-volume defects � in ion-conducting Ag/AgI-As2S3 glasses ��

O. Shpotyuk, J. Filipecki, M. Hyla, A. Ingram

Solid State Ionics 208, 1-3 (2012).

[4] Bulk Fermi surface and momentum density in heavily doped La2−xSrxCuO4 using high-resolution Compton scattering and positron annihilation spectroscopies

W. Al-Sawai et al.

Phys. Rev. B 85, 115109 (2012).��

[5] Structural defects and non-ferroelectric piezoelectricity in an unpoled SrTiO3�Bi12TiO20 (ST�BT) composite ceramics

L.J. Zhang, T. Wang, L.H. Wang, J.D. Liu, M.L. Zhao, B.J. Ye

Scripta Materialia, In Press, Uncorrected Proof, Available online March 2012.

[6] Positron Annihilation Lifetime Studies of Nb-Doped TiO2, SnO2, and ZrO2

Paul R. Guagliardo, Eric R. Vance, Zhaoming Zhang, Joel Davis, Jim F. Williams and Sergey N. Samarin

Journal of the American Ceramic Society, Available online March 2012.

[7] Correlation between ferromagnetism and defects in MgO nanocrystals studied by positron annihilation

D.D. Wang, Z.Q. Chen, C.Y. Li, X.F. Li, C.Y. Cao, Z. Tang

Physica B: Condensed Matter, In Press, Corrected Proof, Available online� January 2012.

[8] Defects in TiO2 films on p+-Si studied by positron annihilation spectroscopy

P.G. Coleman, C.J. Edwardson, Anbang Zhang, Xiangyang Ma, Xiaodong Pi, Deren Yang

Materials Science and Engineering: B, In Press, Corrected Proof, Available online� March 2012.

[9] Investigation of defects in actinide-doped UO2 by positron annihilation spectroscopy

Dani�le Roudil, Marie France Barthe, Christophe J�gou, Annie Gavazzi, Fran�ois Vella

Journal of Nuclear Materials 420, 63-68 (2012).

[10] PAL signature of physical ageing in chalcogenide glasses

Adam Ingram, Andrzej Kozdras, Oleh Shpotyuk and Roman Golovchak

physica status solidi (b), Available online January 2012.

[11] Variation of Chemical Vapor Deposited SiO2 Density Due to Generation and Shrinkage of Open Space During Thermal Annealing

Mitsuru Sometani, Ryu Hasunuma, Masaaki Ogino, Hitoshi Kuribayashi, Yoshiyuki Sugahara, Akira Uedono, and Kikuo Yamabe

Jpn. J. Appl. Phys. 51, 021101 (2012).�

[12] Monolayer dispersion of NiO in NiO/Al2O3 catalysts probed by positronium atom

H. J. Zhang, Z. Q. Chen, and S. J. Wang

J. Chem. Phys. 136, 034701 (2012).�

Polymers

[1] Preparation and characterization of EVA/clay Nanocomposites with improved barrier performance

Runcy Wilson, Tom�s S. Plivelic, Abi Santhosh Aprem, C. Ranganathaiagh, S. Anil Kumar and Sabu Thomas

Journal of Applied Polymer Science 123, 3806�3818 (2012).

[2] Investigation of free volume and damping property for polycarbonate/multiwalled carbon nanotube composites by positron annihilation technology

Zhenli Gong, Xiaoli Yan, Jing Gong, Junjun Wang and Bo Wang

Journal of Applied Polymer Science, Available online March 2012.

[3] Fabrication and positron annihilation spectroscopy (PAS) characterization of cellulose triacetate membranes for forward osmosis

Rui Chin Ong, Tai-Shung Chung

Journal of Membrane Science 394�395, 230-240 (2012).

[4] Free volume and mass transport in polymer nanocomposites

G. Choudalakis, A.D. Gotsis

Current Opinion in Colloid & Interface Science, In Press, Corrected Proof, Available online January 2012.

�[5] Preparation, gas separation properties of partially pyrolyzed membranes (PPMs) derived from copolyimides containing polyethylene oxide side chains

R.M. Huertas, C.M. Doherty, A.J. Hill, A.E. Lozano, J. de Abajo, J.G. de la Campa, E.M. Maya

Journal of Membrane Science, In Press, Accepted Manuscript, Available online March 2012.

[6] Modeling of the sorption and transport properties of water vapor in polyimide membranes

George Q. Chen, Colin A. Scholes, Cara M. Doherty, Anita J. Hill, Greg G. Qiao, Sandra E. Kentish

Journal of Membrane Science, In Press, Corrected Proof, Available online March 2012.

[7] A nanostructural investigation of glassy gelatin oligomers: molecular organization and interactions with low molecular weight diluents

M Roussenova, J Enrione, P Diaz-Calderon, A J Taylor, J Ubbink and M A Alam

New J. Phys. 14, 035016 (2012).

[8] Crosslinked poly[1-(trimethylsilyl)-1-propyne] membranes: Characterization and pervaporation of aqueous tetrahydrofuran mixtures

Stan Claes, Pieter Vandezande, Steven Mullens, Peter Adriaensens, Roos Peeters, Frans H.J. Maurer, Marlies K. Van Bael

Journal of Membrane Science 389, 459-469 (2012).

[9] Positron annihilation lifetime spectroscopy and diffusion studies of large molecule penetrants into a polyester

Shelia A. Ward and Richard A. Pethrick

Polymer Engineering & Science, Available online March 2012.

[10] Investigation of free volume distribution and mechanical properties of rectorite/nylon 6 nanocomposites

Jing Gong, Wei Gong, Zhenli Gong, Shu Gao and Bo Wang

Polymer Engineering & Science, Available online March 2012.

[11] Influence of poly(ether imide) on the free volume hole size and distributions in poly(ether ether ketone)

R. Ramani and S. Alam

Journal of Applied Polymer Science, Available online February 2012.

[12] The influence of low- and high-linear energy transfers on some physical properties of poly(methyl-methacrylate) samples

Mostafa F. Eissa, Maysa A. Kaid and Nasser A. Kamel

Journal of Applied Polymer Science, Available online February 2012.

[13] Positron annihilation lifetime spectroscopy (PALS) study of the influence of aluminosilicate gel ageing on its microstructure

S. Bosnar, B. Subotić, B. Gr�eta, D. Bosnar

Journal of Physics and Chemistry of Solids 73, 511-516 (2012).

Positronium Physics

[1] Ubiquitous Nature of Multimode Vibrational Resonances in Positron-Molecule Annihilation

A. C. L. Jones, J. R. Danielson, M. R. Natisin, C. M. Surko, and G. F. Gribakin

Phys. Rev. Lett. 108, 093201 (2012).��

[2] Positron annihilation in the MuPs system

Alexei M. Frolov

Physics Letters A 376, 1451-1453 (2012).

[3] Three-gamma annihilation of ortho-positronium in NiO/γ-Al2O3 catalysts detected by positron lifetime and coincidence Doppler broadening measurements

S.H. Huang, Z.Q. Chen, H.J. Zhang

Radiation Physics and Chemistry, In Press, Corrected Proof, Available online March 2012.

[4] Effect of positron�atom interactions on the annihilation gamma spectra of molecules

D G Green, S Saha, F Wang, G F Gribakin and C M Surko

New J. Phys. 14, 035021 (2012).

Developmental work

[1] SIMION simulation of a slow pulsed positron beam

Xu Hong-Xia, Liu Jian-Dang, Gao Chuan-Bo, Weng Hui-Min and Ye Bang-Jiao

Chinese Phys. C 36, 251 (2012).

[2] Photon induced positron annihilation spectroscopy: A nondestructive method for assay of defects in large engineering materials

P.K. Pujari, K. Sudarshan, R. Tripathi, D. Dutta, P. Maheshwari, S.K. Sharma, D. Srivastava, R. Krause-Rehberg, M. Butterling, W. Anwand, A. Wagner

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 270, 128-132 (2012).

[3] Development of pulsed positron beam line with compact pulsing system

Masaki Maekawa, Atsuo Kawasuso

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 270, 23-27 (2012).

[4] Feasibility study of activity measurement of positron emitters based on gamma�gamma coincident detection by two NaI(Tl) detectors

Peter Volkovitsky, Michael Unterweger

Applied Radiation and Isotopes, In Press, Corrected Proof, Available online February 2012.

[5] A prototype TOF PET detector module using a micro-channel plate photomultiplier tube with waveform sampling

H. Kim, C.-T. Chen, H. Frisch, F. Tang, C.-M. Kao

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 662, 26-32 (2012).

Astrophysics

[1] Positron annihilation as a cosmic ray probe

Yutaka Ohira, Kazunori Kohri and Norita Kawanaka

Monthly Notices of the Royal Astronomical Society: Letters 421, L102�L106 (2012).

[2] Resonances in 19Ne with relevance to the astrophysically important 18F(p,α)15O reaction

D. J. Mountford et al.

Phys. Rev. C 85, 022801 (2012).�� ��

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