Vacancy-hydrogen interaction in H-implanted Si studied by positron annihilation RS Brusa, MD Naia, A Zecca, C Nobili, G Ottaviani, R Tonini, ... Physical Review B 49 (11), 7271, 1994 | 47 | 1994 |
Positron mobility in polyethylene in the 60–400 K temperature range RS Brusa, MD Naia, D Margoni, A Zecca Applied Physics A 60, 447-453, 1995 | 40 | 1995 |
A pulsed positron microbeam A Zecca, RS Brusa, MP Duarte-Naia, GP Karwasz, J Paridaens, A Piazza, ... Europhysics Letters 29 (8), 617, 1995 | 38 | 1995 |
An analytical study of the transient motion of a dense rigid sphere in an incompressible Newtonian fluid JM Ferreira, M Duarte Naia, RP Chhabra Chemical Engineering Communications 168 (1), 45-58, 1998 | 36 | 1998 |
Modification of the α-Fe surface using a low energy high current electron beam A Zecca, RS Brusa, MD Naia, J Paridaens, AD Pogrebnjak, AB Markov, ... Physics letters A 175 (6), 433-440, 1993 | 26 | 1993 |
The München scanning positron microscope G Kögel Applied surface science 116, 108-113, 1997 | 23 | 1997 |
Cyclotron production of unconventional radionuclides for PET imaging: the example of titanium-45 and its applications P Costa, LF Metello, F Alves, M Duarte Naia Instruments 2 (2), 8, 2018 | 22 | 2018 |
Effect of low level contamination on TiAl alloys studied by SIMS O Teodoro, J Barbosa, MD Naia, AMC Moutinho Applied surface science 231, 854-858, 2004 | 17 | 2004 |
Tungsten singlecrystal and polycrystalline foils used as first transmission moderator RS Brusa, M Duarte Naia, E Galvanetto, P Scardi, A Zecca Materials Science Forum 105, 1849-1852, 1992 | 16 | 1992 |
Numerical investigation of effects of buoyancy around a heated circular cylinder in parallel and contra flow AA Soares, ND Couto, M Duarte Naia, NJ Gonçalves, A Rouboa Journal of mechanical science and technology 26, 1501-1513, 2012 | 14 | 2012 |
Influence of the a-Si: H structural defects studied by positron annihilation on the solar cells characteristics A Amaral, G Lavareda, CN De Carvalho, P Brogueira, PM Gordo, ... Thin Solid Films 403, 539-542, 2002 | 9 | 2002 |
Integration and testing of the GRAVITY infrared camera for multiple telescope optical beam analysis P Gordo, A Amorim, J Abreu, F Eisenhauer, N Anugu, P Garcia, O Pfuhl, ... Optical and Infrared Interferometry IV 9146, 554-561, 2014 | 7 | 2014 |
Positron studies on nanocrystalline copper thin films doped with nitrogen PM Gordo, M Duarte Naia, AS Ramos, MT Vieira, Z Kajcsos Proceedings of the ICPA15-15th International Conference on Positron Annihilation, 2009 | 7 | 2009 |
Counting-rate-dependence of the S parameter in Doppler-broadening positron annihilation measurements A Zecca, RS Brusa, MD Naia Measurement Science and Technology 5 (1), 61, 1994 | 6 | 1994 |
Improvments in the Acquisition and Analysis of Doppler-BroadeningAnnihilation Spectra RS Brusa, M Duarte Naia, R Grisenti, A Zecca positron annihilation ICPA-9 105, 1853, 1992 | 6 | 1992 |
Positron mobility in polyethylene RS Brusa, M Duarte Naia, D Margoni, A Zecca Materials Science Forum 175, 655-658, 1994 | 4 | 1994 |
Characterisation of Ti/Al multilayered structures with slow positron beams applying a simplified positron depth distribution model M Duarte Naia, PM Gordo, OMND Teodoro, AP de Lima, AMC Moutinho Materials Science Forum 636, 1097-1101, 2010 | 3 | 2010 |
Depth Profiling of Defects in He Implanted S Mariazzi, L Toniutti, R Brusa, M Duarte Naia, A Karbowski, G Karwasz Acta Physica Polonica A 113 (5), 1447-1453, 2008 | 3 | 2008 |
PET imaging using titanium-45: Could it be useful? P Costa, L Metello, F Alves, MD Naia Nuclear Medicine and Biology 41 (7), 648, 2014 | 2 | 2014 |
Initial results with a variable energy positron system at Coimbra AP de Lima, CL Gil, PM Gordo, MD Naia ION AND SLOW POSITRON BEAM UTILISATION, 121, 1998 | 2 | 1998 |