campeanu


Radu Campeanu

Photo of Radu Campeanu

School of Information Technology

Professor

Office: 3059 Victor Phillip Dahdaleh Building (DB)
(Formerly known as Technology Enhanced
Learning Building)
Phone: 416-736-2100 Ext: 30105
Email: campeanu@yorku.ca
Primary website: http://www.yorku.ca/campeanu/


CURRENT RESEARCH AND DEVELOPMENT April 1997 - present R&D contract with I-Image Medical Technologies Inc., Montreal. Design and development of a pattern recognition program which measures and analyses eye blood vessels in the assessment of an ophthalmic patient before and after medical or surgical interventions. This program, developed in Visual C++, lead to an approved patent.

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CURRENT RESEARCH AND DEVELOPMENT April 1997 - present R&D contract with I-Image Medical Technologies Inc., Montreal. Design and development of a pattern recognition program which measures and analyses eye blood vessels in the assessment of an ophthalmic patient before and after medical or surgical interventions. This program, developed in Visual C++, lead to an approved patent. 2. RESEARCH IN COMPUTATIONAL ATOMIC PHYSICS atomic and molecular collisions molecular, atomic and nuclear structures effects of atomic phenomena on tokamak plasmas modelling and simulation techniques numerical analysis Computational Atomic Physics, with fous on Positron Impact Phenomena CURRENT RESEARCH Since 1982 - Positron and Electron Impact Ionization of Atoms, Molecules and Ions. Developed distorted-wave models, which proved to work well for a wide range of impact energies. Supervision of graduate students in the York University Graduate Program in Physics and Astronomy. For more information click here to access my webpage in the Graduate program and check the funding situation. 3. SCIENCE AND TECHNOLOGY STUDIES I am one of the many who believe in the need to share current scientific research with an interested public. The analysis and interpretation of recent scientific developments can be a most exciting and rewarding intellectual activity. My current areas of interest are: COSMOLOGY AND QUANTUM PHYSICS. I contend that the 20th century discoveries in Physics and Cosmology gave us answers to some of our deepest questions about the Universe. Partial theories explain the nature of matter and the large scale behavior of the Universe and we might be close to producing a "theory of everything". For details on this exciting area of research please use the link to my lectures in NATS1720.06 or buy my book “Exploration of the Universe” published by Pearson Custom Publishing in 2002. QUANTUM COMPUTING. Two current research and development areas fuel this 15 year old field: 1) chip technologists creating transistors of smaller and smaller sizes and 2) atomic physicists manipulating individual atoms with an increasing level of sophistication. The ultimate goal of each is a computer with transistors of atomic size, which will manipulate qubits to produce quantum-type calculations. My research interests are in the area of theoretical Quantum Computing, i.e. the creation of algorithms to solve practical problems on a quantum computer. If you want to download my PowerPoint slides on Quantum Computing presented at a Brownbag seminar please click here

Degrees

PhD, University College London, England

Research Interests

Information Technologies , Research and Development in computer imaging systems, Image analysis, Pattern recognition, Computational Atomic Physics

Current Research Projects

Electron and Positron Impact Collisions with Atoms and Molecules

    See more
    Start Date:
      Month: Apr   Year: 2015

    End Date:
      Month: Apr   Year: 2020

    Funders:
    NSERC grant

    See more
Books

Publication
Year

Campeanu, R.I. (2015) . Exploration of the Universe (4th edition), Pearson Pub.

2015

Campeanu, R.I. (2006) . Exploration of the Universe (1st edition), Pearson Pub.

2006

Monographs

Publication
Year

Campeanu, R.I. (1982) . 50 Years of Positron Physics -- A Survey of the Present Status.

1982

Journal Articles

Publication
Year

“DWBA double differential ionization cross sections for positron impact on argon” (with M.Alam), European Journal of Physics D, Vol.66, pp.19, 2012

2012

“Triple differential cross sections for the ionization of water by electron and positron impact” (with I.Toth and L.Nagy), European Journal of Physics D, Vol.66, pp.21, 2012

2012

“DWBA calculation of positron impact ionization of argon” (with M.Alam), Journal of Physics: Conference Series 262, pp.012010, 2011

2011

“Ionization of the water molecule by electron and positron impact” (with I.Toth, V.Chis and L.Nagy), Journal of Physics: Conference Series 199, pp.012018, 2010

2010

“Positron Impact Ionization of Atoms and Molecules”, Nuclear Instruments and Methods in Physics Research B, Vol.267, pp.239-243, 2009

2009

“Distorted-wave Born approximation for the ionization of molecules by positron and electron impact” (with I.Toth, V.Chis and L.Nagy), Nuclear Instruments and Methods in Physics Research B, Vol.267, pp.262-265, 2009

2009

“Electron impact ionization of diatomic molecules” (with I.Toth, V.Chis and L.Nagy), European Journal of Physics D, Vol.48, pp.351-354, 2008

2008

“ECC Study in Positron Impact Ionization of Helium” (with A.Benedek), Nuclear Instruments and Methods in Physics Research B, Vol.266, pp.407-409, 2008

2008

Benedek, A., Campeanu, R.I. “ECC Study in Positron Impact Ionization of Helium”, Nuclear Instruments and Methods in Physics Research B, Vol.266, pp.407-09, 2008.

2008

Toth, I., Campeanu, R.I., Chis V., and Nagy, L. “Electron impact ionization of diatomic molecules”, European Journal of Physics D, Vol.48, pp.351-354, 2008.

2008

Campeanu, R.I. “Positron Impact Ionization of Atoms and Molecules”, to appear in Nuclear Instruments and Methods in Physics Research B, 2008.

2008

Benedek, A., Campeanu, R.I. “Triply differential study of positron impact ionization of H2”, Nuclear Instruments and Methods in Physics Research B, Vol.266, pp.458-61, 2008.

2008

Benedek, A. and Campeanu, R.I. (2007) . ECC Study in Positron Impact Ionization of Helium. Nuclear Instruments and Meth. in Phys. Res. B.

2007

Campeanu, R.I. (2007) . Electron Impact Ionization of He, Ne and Ar. Physics Letters A, Vol.365, pp.122-125.

2007

Campeanu, R.I. (2007) . Electron Impact Ionization of Kr and Xe.

2007

Benedek, A. and Campeanu, R.I. (2007) . Molecular 3C Approximation for the Ionization of H2 by Positron Impact. Journal of Physics B, Vol.40, pp.1589-96.

2007

Benedek, A. and Campeanu, R.I. (2007) . Triply differential study of positron impact ionization of H2. European Journal of Physics D.

2007

Toth, I.F., Campeanu, R.I., Chis, V. and L.Nagy. (2006) . DWBA Calculations for Positron Impact Ionization of Molecules. Studia Universitatis Cluj-Napoca, Physica LI, pp.45-52.

2006

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2006) . Positron Impact Ionization of CH4. Nuclear Instruments and Methods in Physics Research B.

2006

Campeanu, R.I., Chis, V., Nagy, L. and I.Toth. (2006) . Screening Effects in the Ionization of Molecules by Positrons. Physics Letters A, Vol. 360, pp.131-134.

2006

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2005) . Positron Impact Ionization of CO and CO2. Physics Letters A, Vol. 344, pp. 247-252.

2005

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2004) . Positron Impact Ionization of Diatomic Molecules.

2004

Campeanu, R.I., Nagy, L. and A.D.Stauffer. (2003) . Near-Threshold Ionization of Atoms and Molecules by Positron Impact. Canadian Journal of Physics, Vol.81, pp.919-27.

2003

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2003) . The Effect of Target Representation in Positron-Impact Ionization of Molecular Hydrogen. Physics Letters A, Vol.310, pp.445-50.

2003

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (2002) . Distorted-wave Models in Positron Impact Ionization of Atoms. Nuclear Instruments and Methods in Physics Research B, Vol.192, pp.146-9.

2002

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (2001) . Positron Impact Ionization of Hydrogen and the Noble Gases. Canadian Journal of Physics, Vol.79, pp.1231-36.

2001

Nagy, Sz., Nagy, L. and Campeanu, R.I. (2001) . Simple Ionization of Molecular Hydrogen by Positron and Electron Impact. Physica XLVI, pp.49-56.

2001

Campeanu, R.I., McEachran, R.P. and Stauffer, A.D. (1999) . Positron Impact Ionization of Krypton and Xenon. Canadian Journal of Physics, Vol.77, pp.769-74.

1999

Campeanu, R.I., McEachran, R.P., Parcell, L.A. and A.D.Stauffer. (1998) . Positron Scattering from Magnesium. Nuclear Instruments and Method in Physics Research B, Vol.143, pp.21-26.

1998

Campeanu, R.I., Darewych, J. and A.D.Stauffer. (1997) . Positron-Impact Ionization of Molecular Hydrogen. Journal of Physics B, Vol.30, pp.5033-41.

1997

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1996) . Positron-Impact Ionization of He, Ne and Ar. Canadian Journal of Physics, Vol.74, pp.544-47.

1996

Kamel, M.S., Shen, H.C., Wong, A.K.C., Hong, T.M. and R.I.Campeanu. (1994) . Face Recognition Using Perspective Invariant Features. Pattern Recognition Letters, 15(9), pp.877-883.

1994

Acacia, P., Campeanu, R.I., Horbatsch, M., McEachran, R.P. and A.D.Stauffer. (1994) . New calculations on e+ H Ionization. Hyperfine Interactions, Vol.89, pp.95-103.

1994

Acacia, P., Campeanu, R.I., Horbatsch, M., McEachran, R.P., and A.D.Stauffer. (1993) . Positron Impact Ionization of Atomic Hydrogen. Physics Letters A, Vol.179, pp.205-208.

1993

Kamel, M.S., Shen, H.C., Wong, A.K.C. and Campeanu, R.I. (1993) . System for the Recognition of Human Faces. IBM Systems Journal, 32(2), pp.307-320.

1993

”A Semi-Automated Method for Retinal Vessel Measurements”(with M.G.Quigley), Investigative Ophthalmology and Visual Science, Vol.42, pp.460 Suppl.( Assoc.Res.Vision Ophthal.Inc. Bethesda), 1991

1991

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1988) . Electron Impact Ionization of Helium. Journal of Physics B, Vol.21, pp.1411-1417.

1988

Campeanu, R.I., Fromme, D., Kruse, G., McEachran, R.P., Parcell, L.A., Raith, W., Sinapius, G. and A.D. Stauffer. (1987) . Partitioning of the Positron - Helium Total Scattering Cross Sections. Journal of Physics B, Vol.20, pp.3557-3572.

1987

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1987) . Screening and Distortion Effects in Positron Impact Ionization of Helium. Journal of Physics B, Vol.20, pp.1635-1643.

1987

Campeanu, R.I. and L. Nagy. (1986) . DW Cross Sections for Electron-Impact Ionization of Helium. Physics Letters A, Vol.114, pp.13-17.

1986

Campeanu, R.I. and L. Nagy. (1985) . Electron Impact Ionization of Atoms and Atomic Ions. Cerc.Fiz. Vol.37, pp.597-604.

1985

Campeanu, R.I. (1985) . Electron Impact Ionization of Atoms and Atomic Ions in Tokamak Plasma. Studies of Physics, Bucharest, Vol.35, pp.223-236.

1985

Campeanu, R.I. and L. Nagy. (1985) . Electron Impact Ionization of Highly Ionized Lithium-like Atoms. Zeitschrift fur Physik A, Vol.321, pp.124-131.

1985

Campeanu, R.I. (1985) . Energy Levels and Wavelengths in Mo XX-XL. Revue Roumain de Physique, Bucharest, No. 4, pp.225-232.

1985

Campeanu, R.I. and C. Cuibus. (1985) . HFS Spectrum for Mo XXXI-XXXIII. Studia Universitatis Cluj-Napoca, Series Physica, Vol.30, pp.29-37.

1985

Campeanu, R.I. (1985) . Semiempirical Model Description of the Low Energy Electron Scattering from Helium. Zeitschrift fur Physik A, Vol.320, pp.579-582.

1985

Beu, T. and R.I.Campeanu. (1985) . TOPIC - A Tokamak Plasma Impurities Code. Computer Physics Communications, Vol.36, pp.161-177.

1985

Campeanu, R.I. (1984) . Black Holes and Cosmology. The Philosophy of Physics.

1984

Campeanu, R.I. (1984) . On the Accuracy of the Hartree-Fock-Slater Approximations. Studia Universitatis Cluj-Napoca, Series Physica, Vol.29, pp.11-18.

1984

Campeanu, R.I. (1983) . Achievements and Perspectives in Positron Physics. Studies of Physics, Bucharest, Vol.33, pp.601-644.

1983

Campeanu, R.I. and T. Beu. (1983) . Hydrogen-Antihydrogen Interaction Potential. Physics Letters A, Vol.93, pp.223-228.

1983

Beu, T. and R.I.Campeanu. (1983) . Prolate Angular Spheroidal Wave Functions. Computer Physics Communications, Vol.30, pp.187-195.

1983

Campeanu, R.I. and T. Bencz. (1982) . Nonrelativistic Meson Spectrum Calculation. Studia Universitatis Cluj-Napoca, Physica, Vol.27, pp.15-21.

1982

Campeanu, R.I. (1982) . POSDIF-A Program to Compute Positron Diffusion and Annihilation in Rare Gases. Computer Physics Communications Vol.25, pp.433-448.

1982

Campeanu, R.I. (1982) . Positron Diffusion in Krypton and Xenon. Canadian Journal of Physics, Vol.60, pp.615-624.

1982

Campeanu, R.I. and D.Bunau. (1981) . On the Generalized Eigenvalue Problem in Quantum Mechanics. Studia Universitatis Cluj-Napoca, Series Physica, Vol.26, pp.58-63.

1981

R.I., Campeanu "On the Theoretical and Experimental Cross Sections for Low-Energy Positrons - Rare Gases Scattering", Journal of Physics B, Vol.14, pp.L157-L168, 1981

1981

Conference Papers

Publication
Year

R.I.Campeanu, “Positron Impact Ionization of Atoms and Molecules”, invited talk at the 4th Conference on Elementary Processes in Atomic Systems (CEPAS), Cluj-Napoca, 2008.

2008

Campeanu, R.I., Chis, V., Nagy, L. and I.F. Toth. (2007) . DWBA Calculations for Positron Impact Ionization of Molecules.

2007

Campeanu, R.I. and A. Benedek. (2007) . ECC Study in Positron Impact Ionization of H2 and He.

2007

Campeanu, R.I. (2007) . Electron Impact Ionization of Noble Gas Atoms.

2007

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2005) . Positron Impact Ionization of CO and CO2.

2005

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2005) . Positron Impact Ionization of CO, CO2 and CH4.

2005

Zsifkov, N. and R.I.Campeanu. (2004) . Business Rules Domains and Business Rules Modeling.

2004

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2004) . Positron Impact Ionization of Homonuclear Diatomic Molecules.

2004

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2003) . Positron Impact Ionization of Molecular Nitrogen.

2003

Campeanu, R.I. (2003) . Recent results in Positron Impact Ionization of Molecules.

2003

Campeanu, R.I. and M.G.Quigley. (2001) . A Semi-Automated Method for Retinal Vessel Measurements.

2001

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (2001) . On the Distorted-Wave Models in Positron Impact Ionization of Atoms and Molecules.

2001

Campeanu, R.I., McEachran, R.P., Parcell, L.A. and A.D.Stauffer. (1999) . Positron Scattering from Argon and Krypton.

1999

Campeanu, R.I., Ji, W., McEachran, R.P., Parcell, L.A. and A.D. Stauffer. (1997) . Review of Methods of Calculating Cross-Sections for Positron-Atom Scattering.

1997

Campeanu, R.I. (1995) . Methods for Producing CIE Specified Colours on CRT Monitors.

1995

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1995) . Positron Ionization of Neon and Argon.

1995

Campeanu, R.I. and J.D.McFall. (1993) . CIE Standard Based Calibration of Colour Monitors.

1993

Acacia, P., Campeanu, R.I., Horbatsch, M., McEachran, R.P. and A.D.Stauffer. (1993) . New Calculations on e+ - H Ionization.

1993

Acacia, P., Campeanu, R.I., Horbatsch, M., McEachran, R.P. and A.D.Stauffer. (1993) . Positron Impact Ionization of Atomic Hydrogen.

1993

Campeanu, R.I. (1993) . Sampling Techniques in Wiener Image Restoration.

1993

Campeanu, R.I. (1991) . Interactive Image Enhancement Tool.

1991

Campeanu, R.I. and F.Mintzer. (1991) . PC-Based Interactive Wiener Restoration.

1991

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1989) . Triple Differential Cross Sections for Positron Impact Ionization of Helium.

1989

Campeanu, R.I. (1988) . Noise Removal in 8-Bit Grey Images.

1988

Campeanu, R.I. (1987) . Enhancement and Restoration of 8-Bit Grey Pictures.

1987

Campeanu, R.I. (1985) . Distorted-Wave Cross Sections for Electron-Impact Ionization of the Lithium-like Ions.

1985

Campeanu, R.I. (1985) . Heuristic Model for Low Energy Electron Scattering from Noble Gases.

1985

Campeanu, R.I. and F. Chifu. (1985) . Positron-Impact Ionization of Helium.

1985

Stroian, I. and R.I.Campeanu. (1983) . The Use of Personal Computers in Teaching Atomic Physics.

1983

Campeanu, R.I., Cosma, C. and S. Koch. (1982) . Analytical Formulae in the Description of the Electron Impact Ionization of Atoms.

1982

Campeanu, R.I. and D.Bunau. (1982) . Born Cross Sections for Electron Impact Ionization of Atoms.

1982

Beu, T. and R.I.Campeanu. (1982) . Hydrogen-Antihydrogen Interaction.

1982

Campeanu, R.I. and T.Beu. (1982) . Positron Scattering on Molecular Hydrogen.

1982

Campeanu, R.I. (1982) . Slow Positron Diffusion in Rare Gases.

1982



Upcoming Courses

Term Course Number Section Title Type
Fall 2018 AP/ITEC1620 3.0 A Object-Based Programming LECT
Fall 2018 AP/ITEC1620 3.0 B Object-Based Programming LECT
Fall 2018 AP/ITEC1620 3.0 C Object-Based Programming LECT
Fall 2018 AP/ITEC1620 3.0 D Object-Based Programming LECT


CURRENT RESEARCH AND DEVELOPMENT April 1997 - present R&D contract with I-Image Medical Technologies Inc., Montreal. Design and development of a pattern recognition program which measures and analyses eye blood vessels in the assessment of an ophthalmic patient before and after medical or surgical interventions. This program, developed in Visual C++, lead to an approved patent.

CURRENT RESEARCH AND DEVELOPMENT April 1997 - present R&D contract with I-Image Medical Technologies Inc., Montreal. Design and development of a pattern recognition program which measures and analyses eye blood vessels in the assessment of an ophthalmic patient before and after medical or surgical interventions. This program, developed in Visual C++, lead to an approved patent. 2. RESEARCH IN COMPUTATIONAL ATOMIC PHYSICS atomic and molecular collisions molecular, atomic and nuclear structures effects of atomic phenomena on tokamak plasmas modelling and simulation techniques numerical analysis Computational Atomic Physics, with fous on Positron Impact Phenomena CURRENT RESEARCH Since 1982 - Positron and Electron Impact Ionization of Atoms, Molecules and Ions. Developed distorted-wave models, which proved to work well for a wide range of impact energies. Supervision of graduate students in the York University Graduate Program in Physics and Astronomy. For more information click here to access my webpage in the Graduate program and check the funding situation. 3. SCIENCE AND TECHNOLOGY STUDIES I am one of the many who believe in the need to share current scientific research with an interested public. The analysis and interpretation of recent scientific developments can be a most exciting and rewarding intellectual activity. My current areas of interest are: COSMOLOGY AND QUANTUM PHYSICS. I contend that the 20th century discoveries in Physics and Cosmology gave us answers to some of our deepest questions about the Universe. Partial theories explain the nature of matter and the large scale behavior of the Universe and we might be close to producing a "theory of everything". For details on this exciting area of research please use the link to my lectures in NATS1720.06 or buy my book “Exploration of the Universe” published by Pearson Custom Publishing in 2002. QUANTUM COMPUTING. Two current research and development areas fuel this 15 year old field: 1) chip technologists creating transistors of smaller and smaller sizes and 2) atomic physicists manipulating individual atoms with an increasing level of sophistication. The ultimate goal of each is a computer with transistors of atomic size, which will manipulate qubits to produce quantum-type calculations. My research interests are in the area of theoretical Quantum Computing, i.e. the creation of algorithms to solve practical problems on a quantum computer. If you want to download my PowerPoint slides on Quantum Computing presented at a Brownbag seminar please click here

Degrees

PhD, University College London, England

Research Interests

Information Technologies ,Research and Development in computer imaging systems,Image analysis,Pattern recognition, Computational Atomic Physics

Current Research Projects

Electron and Positron Impact Collisions with Atoms and Molecules

    Project Type: Funded
    Start Date:
      Month: Apr   Year: 2015

    End Date:
      Month: Apr   Year: 2020

    Funders:
    NSERC grant

    Project Type: Funded

All Publications


Books

Publication
Year

Campeanu, R.I. (2015) . Exploration of the Universe (4th edition), Pearson Pub.

2015

Campeanu, R.I. (2006) . Exploration of the Universe (1st edition), Pearson Pub.

2006

Monographs

Publication
Year

Campeanu, R.I. (1982) . 50 Years of Positron Physics -- A Survey of the Present Status.

1982

Journal Articles

Publication
Year

“DWBA double differential ionization cross sections for positron impact on argon” (with M.Alam), European Journal of Physics D, Vol.66, pp.19, 2012

2012

“Triple differential cross sections for the ionization of water by electron and positron impact” (with I.Toth and L.Nagy), European Journal of Physics D, Vol.66, pp.21, 2012

2012

“DWBA calculation of positron impact ionization of argon” (with M.Alam), Journal of Physics: Conference Series 262, pp.012010, 2011

2011

“Ionization of the water molecule by electron and positron impact” (with I.Toth, V.Chis and L.Nagy), Journal of Physics: Conference Series 199, pp.012018, 2010

2010

“Positron Impact Ionization of Atoms and Molecules”, Nuclear Instruments and Methods in Physics Research B, Vol.267, pp.239-243, 2009

2009

“Distorted-wave Born approximation for the ionization of molecules by positron and electron impact” (with I.Toth, V.Chis and L.Nagy), Nuclear Instruments and Methods in Physics Research B, Vol.267, pp.262-265, 2009

2009

“Electron impact ionization of diatomic molecules” (with I.Toth, V.Chis and L.Nagy), European Journal of Physics D, Vol.48, pp.351-354, 2008

2008

“ECC Study in Positron Impact Ionization of Helium” (with A.Benedek), Nuclear Instruments and Methods in Physics Research B, Vol.266, pp.407-409, 2008

2008

Benedek, A., Campeanu, R.I. “ECC Study in Positron Impact Ionization of Helium”, Nuclear Instruments and Methods in Physics Research B, Vol.266, pp.407-09, 2008.

2008

Toth, I., Campeanu, R.I., Chis V., and Nagy, L. “Electron impact ionization of diatomic molecules”, European Journal of Physics D, Vol.48, pp.351-354, 2008.

2008

Campeanu, R.I. “Positron Impact Ionization of Atoms and Molecules”, to appear in Nuclear Instruments and Methods in Physics Research B, 2008.

2008

Benedek, A., Campeanu, R.I. “Triply differential study of positron impact ionization of H2”, Nuclear Instruments and Methods in Physics Research B, Vol.266, pp.458-61, 2008.

2008

Benedek, A. and Campeanu, R.I. (2007) . ECC Study in Positron Impact Ionization of Helium. Nuclear Instruments and Meth. in Phys. Res. B.

2007

Campeanu, R.I. (2007) . Electron Impact Ionization of He, Ne and Ar. Physics Letters A, Vol.365, pp.122-125.

2007

Campeanu, R.I. (2007) . Electron Impact Ionization of Kr and Xe.

2007

Benedek, A. and Campeanu, R.I. (2007) . Molecular 3C Approximation for the Ionization of H2 by Positron Impact. Journal of Physics B, Vol.40, pp.1589-96.

2007

Benedek, A. and Campeanu, R.I. (2007) . Triply differential study of positron impact ionization of H2. European Journal of Physics D.

2007

Toth, I.F., Campeanu, R.I., Chis, V. and L.Nagy. (2006) . DWBA Calculations for Positron Impact Ionization of Molecules. Studia Universitatis Cluj-Napoca, Physica LI, pp.45-52.

2006

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2006) . Positron Impact Ionization of CH4. Nuclear Instruments and Methods in Physics Research B.

2006

Campeanu, R.I., Chis, V., Nagy, L. and I.Toth. (2006) . Screening Effects in the Ionization of Molecules by Positrons. Physics Letters A, Vol. 360, pp.131-134.

2006

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2005) . Positron Impact Ionization of CO and CO2. Physics Letters A, Vol. 344, pp. 247-252.

2005

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2004) . Positron Impact Ionization of Diatomic Molecules.

2004

Campeanu, R.I., Nagy, L. and A.D.Stauffer. (2003) . Near-Threshold Ionization of Atoms and Molecules by Positron Impact. Canadian Journal of Physics, Vol.81, pp.919-27.

2003

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2003) . The Effect of Target Representation in Positron-Impact Ionization of Molecular Hydrogen. Physics Letters A, Vol.310, pp.445-50.

2003

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (2002) . Distorted-wave Models in Positron Impact Ionization of Atoms. Nuclear Instruments and Methods in Physics Research B, Vol.192, pp.146-9.

2002

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (2001) . Positron Impact Ionization of Hydrogen and the Noble Gases. Canadian Journal of Physics, Vol.79, pp.1231-36.

2001

Nagy, Sz., Nagy, L. and Campeanu, R.I. (2001) . Simple Ionization of Molecular Hydrogen by Positron and Electron Impact. Physica XLVI, pp.49-56.

2001

Campeanu, R.I., McEachran, R.P. and Stauffer, A.D. (1999) . Positron Impact Ionization of Krypton and Xenon. Canadian Journal of Physics, Vol.77, pp.769-74.

1999

Campeanu, R.I., McEachran, R.P., Parcell, L.A. and A.D.Stauffer. (1998) . Positron Scattering from Magnesium. Nuclear Instruments and Method in Physics Research B, Vol.143, pp.21-26.

1998

Campeanu, R.I., Darewych, J. and A.D.Stauffer. (1997) . Positron-Impact Ionization of Molecular Hydrogen. Journal of Physics B, Vol.30, pp.5033-41.

1997

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1996) . Positron-Impact Ionization of He, Ne and Ar. Canadian Journal of Physics, Vol.74, pp.544-47.

1996

Kamel, M.S., Shen, H.C., Wong, A.K.C., Hong, T.M. and R.I.Campeanu. (1994) . Face Recognition Using Perspective Invariant Features. Pattern Recognition Letters, 15(9), pp.877-883.

1994

Acacia, P., Campeanu, R.I., Horbatsch, M., McEachran, R.P. and A.D.Stauffer. (1994) . New calculations on e+ H Ionization. Hyperfine Interactions, Vol.89, pp.95-103.

1994

Acacia, P., Campeanu, R.I., Horbatsch, M., McEachran, R.P., and A.D.Stauffer. (1993) . Positron Impact Ionization of Atomic Hydrogen. Physics Letters A, Vol.179, pp.205-208.

1993

Kamel, M.S., Shen, H.C., Wong, A.K.C. and Campeanu, R.I. (1993) . System for the Recognition of Human Faces. IBM Systems Journal, 32(2), pp.307-320.

1993

”A Semi-Automated Method for Retinal Vessel Measurements”(with M.G.Quigley), Investigative Ophthalmology and Visual Science, Vol.42, pp.460 Suppl.( Assoc.Res.Vision Ophthal.Inc. Bethesda), 1991

1991

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1988) . Electron Impact Ionization of Helium. Journal of Physics B, Vol.21, pp.1411-1417.

1988

Campeanu, R.I., Fromme, D., Kruse, G., McEachran, R.P., Parcell, L.A., Raith, W., Sinapius, G. and A.D. Stauffer. (1987) . Partitioning of the Positron - Helium Total Scattering Cross Sections. Journal of Physics B, Vol.20, pp.3557-3572.

1987

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1987) . Screening and Distortion Effects in Positron Impact Ionization of Helium. Journal of Physics B, Vol.20, pp.1635-1643.

1987

Campeanu, R.I. and L. Nagy. (1986) . DW Cross Sections for Electron-Impact Ionization of Helium. Physics Letters A, Vol.114, pp.13-17.

1986

Campeanu, R.I. and L. Nagy. (1985) . Electron Impact Ionization of Atoms and Atomic Ions. Cerc.Fiz. Vol.37, pp.597-604.

1985

Campeanu, R.I. (1985) . Electron Impact Ionization of Atoms and Atomic Ions in Tokamak Plasma. Studies of Physics, Bucharest, Vol.35, pp.223-236.

1985

Campeanu, R.I. and L. Nagy. (1985) . Electron Impact Ionization of Highly Ionized Lithium-like Atoms. Zeitschrift fur Physik A, Vol.321, pp.124-131.

1985

Campeanu, R.I. (1985) . Energy Levels and Wavelengths in Mo XX-XL. Revue Roumain de Physique, Bucharest, No. 4, pp.225-232.

1985

Campeanu, R.I. and C. Cuibus. (1985) . HFS Spectrum for Mo XXXI-XXXIII. Studia Universitatis Cluj-Napoca, Series Physica, Vol.30, pp.29-37.

1985

Campeanu, R.I. (1985) . Semiempirical Model Description of the Low Energy Electron Scattering from Helium. Zeitschrift fur Physik A, Vol.320, pp.579-582.

1985

Beu, T. and R.I.Campeanu. (1985) . TOPIC - A Tokamak Plasma Impurities Code. Computer Physics Communications, Vol.36, pp.161-177.

1985

Campeanu, R.I. (1984) . Black Holes and Cosmology. The Philosophy of Physics.

1984

Campeanu, R.I. (1984) . On the Accuracy of the Hartree-Fock-Slater Approximations. Studia Universitatis Cluj-Napoca, Series Physica, Vol.29, pp.11-18.

1984

Campeanu, R.I. (1983) . Achievements and Perspectives in Positron Physics. Studies of Physics, Bucharest, Vol.33, pp.601-644.

1983

Campeanu, R.I. and T. Beu. (1983) . Hydrogen-Antihydrogen Interaction Potential. Physics Letters A, Vol.93, pp.223-228.

1983

Beu, T. and R.I.Campeanu. (1983) . Prolate Angular Spheroidal Wave Functions. Computer Physics Communications, Vol.30, pp.187-195.

1983

Campeanu, R.I. and T. Bencz. (1982) . Nonrelativistic Meson Spectrum Calculation. Studia Universitatis Cluj-Napoca, Physica, Vol.27, pp.15-21.

1982

Campeanu, R.I. (1982) . POSDIF-A Program to Compute Positron Diffusion and Annihilation in Rare Gases. Computer Physics Communications Vol.25, pp.433-448.

1982

Campeanu, R.I. (1982) . Positron Diffusion in Krypton and Xenon. Canadian Journal of Physics, Vol.60, pp.615-624.

1982

Campeanu, R.I. and D.Bunau. (1981) . On the Generalized Eigenvalue Problem in Quantum Mechanics. Studia Universitatis Cluj-Napoca, Series Physica, Vol.26, pp.58-63.

1981

R.I., Campeanu "On the Theoretical and Experimental Cross Sections for Low-Energy Positrons - Rare Gases Scattering", Journal of Physics B, Vol.14, pp.L157-L168, 1981

1981

Conference Papers

Publication
Year

R.I.Campeanu, “Positron Impact Ionization of Atoms and Molecules”, invited talk at the 4th Conference on Elementary Processes in Atomic Systems (CEPAS), Cluj-Napoca, 2008.

2008

Campeanu, R.I., Chis, V., Nagy, L. and I.F. Toth. (2007) . DWBA Calculations for Positron Impact Ionization of Molecules.

2007

Campeanu, R.I. and A. Benedek. (2007) . ECC Study in Positron Impact Ionization of H2 and He.

2007

Campeanu, R.I. (2007) . Electron Impact Ionization of Noble Gas Atoms.

2007

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2005) . Positron Impact Ionization of CO and CO2.

2005

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2005) . Positron Impact Ionization of CO, CO2 and CH4.

2005

Zsifkov, N. and R.I.Campeanu. (2004) . Business Rules Domains and Business Rules Modeling.

2004

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2004) . Positron Impact Ionization of Homonuclear Diatomic Molecules.

2004

Campeanu, R.I., Chis, V., Nagy, L. and A.D.Stauffer. (2003) . Positron Impact Ionization of Molecular Nitrogen.

2003

Campeanu, R.I. (2003) . Recent results in Positron Impact Ionization of Molecules.

2003

Campeanu, R.I. and M.G.Quigley. (2001) . A Semi-Automated Method for Retinal Vessel Measurements.

2001

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (2001) . On the Distorted-Wave Models in Positron Impact Ionization of Atoms and Molecules.

2001

Campeanu, R.I., McEachran, R.P., Parcell, L.A. and A.D.Stauffer. (1999) . Positron Scattering from Argon and Krypton.

1999

Campeanu, R.I., Ji, W., McEachran, R.P., Parcell, L.A. and A.D. Stauffer. (1997) . Review of Methods of Calculating Cross-Sections for Positron-Atom Scattering.

1997

Campeanu, R.I. (1995) . Methods for Producing CIE Specified Colours on CRT Monitors.

1995

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1995) . Positron Ionization of Neon and Argon.

1995

Campeanu, R.I. and J.D.McFall. (1993) . CIE Standard Based Calibration of Colour Monitors.

1993

Acacia, P., Campeanu, R.I., Horbatsch, M., McEachran, R.P. and A.D.Stauffer. (1993) . New Calculations on e+ - H Ionization.

1993

Acacia, P., Campeanu, R.I., Horbatsch, M., McEachran, R.P. and A.D.Stauffer. (1993) . Positron Impact Ionization of Atomic Hydrogen.

1993

Campeanu, R.I. (1993) . Sampling Techniques in Wiener Image Restoration.

1993

Campeanu, R.I. (1991) . Interactive Image Enhancement Tool.

1991

Campeanu, R.I. and F.Mintzer. (1991) . PC-Based Interactive Wiener Restoration.

1991

Campeanu, R.I., McEachran, R.P. and A.D.Stauffer. (1989) . Triple Differential Cross Sections for Positron Impact Ionization of Helium.

1989

Campeanu, R.I. (1988) . Noise Removal in 8-Bit Grey Images.

1988

Campeanu, R.I. (1987) . Enhancement and Restoration of 8-Bit Grey Pictures.

1987

Campeanu, R.I. (1985) . Distorted-Wave Cross Sections for Electron-Impact Ionization of the Lithium-like Ions.

1985

Campeanu, R.I. (1985) . Heuristic Model for Low Energy Electron Scattering from Noble Gases.

1985

Campeanu, R.I. and F. Chifu. (1985) . Positron-Impact Ionization of Helium.

1985

Stroian, I. and R.I.Campeanu. (1983) . The Use of Personal Computers in Teaching Atomic Physics.

1983

Campeanu, R.I., Cosma, C. and S. Koch. (1982) . Analytical Formulae in the Description of the Electron Impact Ionization of Atoms.

1982

Campeanu, R.I. and D.Bunau. (1982) . Born Cross Sections for Electron Impact Ionization of Atoms.

1982

Beu, T. and R.I.Campeanu. (1982) . Hydrogen-Antihydrogen Interaction.

1982

Campeanu, R.I. and T.Beu. (1982) . Positron Scattering on Molecular Hydrogen.

1982

Campeanu, R.I. (1982) . Slow Positron Diffusion in Rare Gases.

1982



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