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Fri, 17 Nov 2017 00:00:00 +0100
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Wed, 15 Nov 2017 12:00:00 +0100
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Fri, 10 Nov 2017 00:00:00 +0100
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Thu, 9 Nov 2017 14:04:00 +0100
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Thu, 9 Nov 2017 11:42:00 +0100
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Thu, 9 Nov 2017 00:00:00 +0100
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  • CV: Physicist, Materials scientist

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    Personal information
     Name:<withheld>
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    Contact information
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    Candidate Profile
     Date Submitted:04-07-2013
     Last Modified:04-07-2013 (12:41)
    Job information
     Current job:Physicist, Materials scientist
     Employment Term:Temp/Contract
     Job location:Anywhere
     Date available:immediately
     Industry:Civil Agencies/International Organizations
     KeywordsRadiation detector, Physicist, Materials scientist
    CV

    Date of Birth:                            14th July 1980

    Nationality:                               British

    UKDriving License:                 Full UK license

    Languages:                               Fluent English, Tamil

    Current Employment:                Department of Physics 

                                                    University of Surrey

     

    Educational Background

    PhD in Materials for Radiation Detection                         Crystal Growth Centre              

    June 2002 – September 2006                                         Anna University, India

    ·        PhD thesis entitled ‘Investigation on Growth and Characterization of II-VI crystals and development of Schottky Barrier Diode and High Energy Gamma Ray Detector’.

    ·        Supervised operation of AFM, SEM, EDX and TEM, including administration of equipment maintenance.

    ·        Managed characterisation of commercial samples including time management between commercial and academic work.

    ·        Demonstrated in metallurgy laboratory.

    ·        Taught undergraduate class of 30 students (materials science. engineeringphysics, electricity & magnetism, electronics, quantum physics and physical metallurgy).

     

    M.Sc., Materials Science, First Class.               Department of Physics             

    June 2000 – April 2002                                                 Anna University, India

    ·        Tutored secondary school students (physics and maths)

    ·        Awareness Programme for Radio Isotope and Radiation Technology certificate

    ·        National Social Service member, responsible for assessing the development requirements of rural villages in India and delivering improvements through local infrastructure, health and social projects.

     

    B.Sc., Physics, First Class.                                             Department of Physics,

    June 1997 – April 2000                                                  University of Madras, India

    ·        Tutored secondary school students (physics and maths) 

     

    Employment History

    Knowledge Transfer Partnerships (KTP) Associates     University of Surrey and

    From July 2010 – Current                                                         Kromek Ltd, Durham.

    • Developing and transferring Radiation Spectroscopy technology to UK industry.
    • Research of prototype pixellated semiconductor detectors (Diamond, CdZnTe), including assembly of electronics and commissioning of pre-commercial X-ray imaging sensors.
    • Drafting technical reports and documentation for each device, specifying response, calibration and performance of the system.
    • Characterisation of detector materials with photocurrent induced current transient spectroscopy, photoluminescence, Pockels and alpha spectroscopy
    • Semiconductor device modelling using Silvaco software to develop new detector structures and enhanced performance.
    • Tutoring and laboratory demonstrations for PG students (radiation physics).
    • Industrial placement involving the development and commissioning of in-house characterisation facilities, protocols and staff training. 

     

    Postdoctoral Fellow (Radiation Detector Development) Department of Physics

    October 2006 – June 2010                                                       University of Surrey

    ·        Investigating properties and quality of Diamond, Cd(Zn)Te, SiC semiconductor crystals grown by novel methods (HEXITEC project).

    ·        Semiconductor wafer fabrication and device process (experience on single crystal wafer processing, photolithography process, metal contacting, wire bonding, and vacuum sealing).

    • Materials characterisation by scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and transmission electron microscopy, investigating crystal defects, ion track formation, surface roughness and chemical stoichiometry.
    • Commissioning offline radiation measurement technique (i.e.) alpha-gamma spectroscopy, charge collection efficiency and neutron measurement.
    • Investigation of novel semiconductor detector configurations ({Pt/CdTe/In, Au/CdZnTe/In, Carbon on Diamond by Pulsed Laser Deposition}.
    • Communicating and sharing results with grant collaborators to improve growth and final detector performance.

     

    Professional Activities

    ·        Co-supervise for PhD and MSc students at the University of Surrey.

    ·        Laboratory demonstrator and tutor for secondary school, UG and PG students.          

    ·        Over 25 papers published in refereed journals (list attached) and presentations given at national and international scientific conferences.

    ·        Driving and delivering inter-disciplinary research projects in collaboration with industry and academia; Durham University, Rutherford Appleton Laboratory, Manchester University, Kromek Ltd (UK), Redlen Technologies Inc. (Canada), Brookhaven National Laboratory (USA), Charles University (Prague), Jadavpur University (India),Northwestern Polytechnical University (China).

    ·        Research proposal submissions to various funding organisations and research councils (EPSRC small equipment grant, KTP, EPSRC technology translation grant, UK-India Education and Research Initiative project).  

    ·        Management and leadership skills gained from CMI-London.

    ·        Responsibility for ionising and non-ionising radiation safety and risk assessment for materials and device laboratory.

    ·        Other courses attended include: PhD supervision, presenting research at a conference and grant proposal writing.

    ·        Active member of the faculty of engineering and physical sciences panel for radiation safety and laboratory issues for two years.

     

    Research Interests

    • Semiconductor epitaxial crystal growth by CVD, PVD and travelling heater method.
    • Characterisation of radiation-hard detector materials (e.g. SiC, single crystal diamond, silicon carbide, gallium nitride) for Oil/gas detection, particle detection and X-ray dosimeters.

    ·        Development and characterisation of high-Z compound semiconductor crystals (e.g. Diamond, CdTe, CdZnTe) for X-ray spectroscopy and medical imaging detectors.

    ·        Semiconductor charge transport properties, including temperature dependent measurements of μτ product, ToF electron/hole mobility and electric field.

    • Characterisation of crystal surface morphology following chemical and mechanical treatments.
    • Analysis of metal-semiconductor interface formed on functional semiconductors following pulsed laser deposition. Characterisation of interfaces by focused ion beam and other depth profiling techniques.
    • Investigation of crystal defects within semiconductor materials and effect on device performance.

     

    Additional Knowledge and Experience

    ·        Optics/optoelectronics, high power Nd-YAG laser, data acquisition systems, analogue and digital electronics, signal processing techniques, handling of radioactive sources.

    ·        Conducted experiments at the Pelletron Accelerator, Diamond Light Source and Ion Beam Centre national facilities.

     

    IT Skills

    ·        Software development with Labview, Matlab, C++ and Java.

    ·        Data acquisition, signal processing from DGF- PIXIE-4.

     

    References

    1.         Prof. Paul Sellin (HOD)            2.         Dr Matthew Veale

                Dept of Physics                                    Detector Development Group

                University of Surrey                              R66, G.18, Rutherford Appleton Laboratory

                Guildford, GU2 7XH                           Didcot, OX11 0QX.

                Email: p.sellin(at)surrey.ac.uk                  Email:matthew.veale(at)stfc.ac.uk

     
    List of Publications

    1.      Veeramani P.,P. J. Sellin,A. Lohstroh and O. Breitenstein, (2013), ‘Investigation of Defectlocalisation on CdZnTe pixellated array device’Journal of Physics D – Applied Physics   in progress.

    2.      Veeramani P., P. J. Sellin, A. Lohstroh andA. Choubey, (2013),‘Metal Semiconductor interface study and Effect of surface passivation on CdZnTe pixellated array device’,IEEE-Transaction in Nuclear Science- in Progress.

    3.      Dimitris Kitou, Matthew C. Veale, Chris Allwork, Paul J. Sellin, Paul Seller, Perumal Veeramani,  ‘Study of charge sharing in CdZnTe pixelated X-ray detectors using the PIXIE ASIC’, (2013),IEEE Transactions on Nuclear Science- in progress.

    4.      M. Haris, Y. Hayakawa, F.C. Chou, P. Veeramani and S. Moorthy Babu, (2013) ‘Structural Compositional and Optical analysis of InAsxSb1-x crystals grown by Vertical Directional Solidification Method’, Journal of Alloys and Compounds, Vol.548, pp.23-26.

    5.      Christopher Allwork, Dimitris Kitou, Sandeep Chaudhuri, Paul J. Sellin, Paul Seller, Matthew C. Veale, Nicola Tartoni, Perumal Veeramani, (2012), ‘X-ray Beam Studies of Charge Sharing in Small Pixel, Spectroscopic, CdZnTe Detectors, IEEE Transactions on Nuclear Science., Vol.59(4), pp.1563-1568.

    6.      A. Choubey, P. Veeramani, A.T.G. Pym, J.T. Mullins, P.J. Sellin, A.W. Brinkman, I. Radley, A. Basu, B.K. Tanner, (2012)‘Growth by The Multi Tube Physical Vapour Transport method and characterization of bulk (Cd,Zn)Te’,Journal of Crystal Growth, Vol.352(1), pp.120-123.

    7.      M. Nakhostinand P. Veeramani, (2012) ‘A new method for charge-loss correction of room-temperature semiconductor detectors using digital trapezoidal pulse shaping’,Journal of Instrumentation, Vol.7(06), pp.P06006-P06006.

    8.      V. Dedic, J. Franc, P. J. Sellin, R. Grill, and V. Perumal, (2012) ‘Study on electric field in Au/CdZnTe/In detectors under high fluxes of X-ray and laser irradiation’, Journal of Instrumentation, Vol.7, pp.02011.

    9.      J. Franc, V. Dedic, P. J. Sellin, R. Grill, and P. Veeramani, (2011) ‘Radiation induced control of electric field in Au/CdTe/In structures’, Appl. Phys. Lett. 98, 232115.

    10.Matthew C. Veale, Steven J. Bell, Lawrence L. Jones, Paul Seller, Matthew D. Wilson, Christopher Allwork, Dimitris Kitou, Paul J. Sellin, Perumal Veeramani and Robert C. Cernik, (2011), ‘An ASIC for the Study of Charge Sharing Effects in Small Pixel CdZnTe X-Ray Detectors’, IEEE Transactions on Nuclear Science, Vol. 58, No. 5, pp. 2357-2362.

    11.Q. Jiang, A. W. Brinkman,  VeeramaniP. and P.J. Sellin,(2010), ‘Epitaxial Growth of High-resistivity CdTe Thick Films Grown Using a Modified Close Space Sublimation Method’, Japanese journal ofApplied Physics, Vol. 49, pp:025504.

    12.A. Lohstroh, P.J. Sellin, S. Gkoumas, H. Al-Barakaty, P. Veeramani, M. E. Özsan,G. Prekas, M. C.Veale, J.M. Parkin, A. W. Davies,(2010)‘The effect of fast neutron irradiation on the radiation detection performance of  synthetic  single crystal diamond devices’, Diamond and Related Materials, Vol. S0925-9635(10)00079-8.

    13.G. Prekas, P. Sellin, Veeramani P,A. Davies, A. Lohstroh, M.E  Özsan, M.C. Veale(2010),‘Investigation of the Internal Electric Field distribution under in-situ X-ray irradiation and under low temperature conditions by the means of the Pockel’s effect’, Journal ofPhysics D – Applied Physics, Vol. 43, 085102 (6pp).

    14.M. E. Ozsan,P. J. Sellin, P. Veeramani, S. J. Hinder, M. L. T. Monnier, G. Prekas, A. Lohstroh, and M. A. Baker, (2010),‘Chemical etching and surface oxidation studies of cadmium zinc telluride radiation detectors’, Surface and Interface Analysis, Vol.42, no.6-7, pp.795-798.

    15.Xu, Y.; Jie, W.; Sellin, P. J.; Wang, T.; Fu, L.; Zha, G.; Veeramani, P., (2009),‘Characterization of CdZnTe Crystals Grown Using a Seeded Modified Vertical Bridgman Method’, IEEE, Transactions on Nuclear Science., Vol. 56,  Issue 5,  Part 2,  pp: 2808 – 2813.

    16.Xu Y.; Sellin P; Lohstroh A.; Jie W; Wang T; Mills C; Veeramani P.; Veale M., (2009),Comparison of the x-ray spectroscopy response and charge transport properties of semi-insulating In/Al doped CdZnTe crystals’,Journal of Applied Physics, Vol. 105, Issue 8, , pp:083101 – 083106.

    17.Yadong Xu, Wanqi Jie, Paul J Sellin, Tao Wang, Weihua Liu, Gangqiang Zha, Perumal Veeramaniand Chris Mills, (2009), Study on temperature dependent resistivity of indium-doped cadmium zinc telluride, J. Phys. D: Appl. Phys., vol.42,No 3, 035105 (6pp).

    18.A. Lohstroh, P. J. Sellin, S. Gkoumas, J. Parkin, P. Veeramani, G. Prekas, M. C. Veale, and J. Morse, (2008),‘Ion beam induced charge (IBIC) irradiation damage study in synthetic singlecrystal diamond using 2.6 MeV protons’, Phys. stat. sol. (a) 205, No. 9, 2211–2215.

    19.Q. Jiang, A.W. Brinkman, B.J. Cantwell, J.T. Mullins, Fabrice Dierre, A. Basu, P. Veeramani and P.J. Sellin, (2008)‘Growth of Thick Epitaxial CdTe Films by Close Space Sublimation’, Journal of Electronic Materials-DOI: 10.1007/s11664-009-808-1

    20.P.J.Sellin, A.W. Davies, S. Gkoumas, A. Lohstroh, M.E. Özsan, J. Parkin, Veeramani Perumal, G. Prekas, M. Veale, (2008) ‘Ion beam induced charge imaging of charge transport in CdTe and CdZnTe’, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol.266, Issue 8, , PP-300-1306.

    21.A. Lohstroh, P. J. Sellin, S. Gkoumas, J. Parkin, P. Veeramani, G. Prekas, M. C. Veale, J. Morse, (2008)Ion beam induced charge (IBIC) irradiation damage study in synthetic single crystal diamond using 2.6 MeV protons’ Physica status solidi (a), 205, No.9, 2211-2215.

    22.Veeramani P.,M. Haris, and S. Moorthy Babu, (2008),‘Investigation of Modified Bridgman Grown CdTex Crystals and Their Characterization’ Materials and Manufacturing Processes, 23: pp.484–488.

    23.VeeramaniP.,M. Haris, S. Moorthy Babu, D. Kanjilal, P. Sugathan,(2008), ‘Investigation of swift heavy ion irradiation effects on Au/CdTe and Au/CdZnTe Schottky barrier diode’, Radiation Measurements, Vol. 43, Issue 1,  pp.56-61.

    24.VeeramaniP.,M. Haris, S. Moorthy Babu, (2007),‘Investigation of CdTe and CdZnTe Schottky barrier diode structure based gamma ray detector’,Materials and Manufacturing Processes, Vol.22, Issue-1, pp.375 -378.

    25.M. Haris, P. Veeramani, P. Jayavel, Y. Hayakawa, and S. Moorthy Babu,(2007), ‘Growth and Characterization of InAsxSb1-x Bulk Crystals and Growth Rate Measurements’, Materials and Manufacturing Processes,Vol.22: pp.404–408,.

    26.Haris M., Veeramani P., Jayavel P., Hayakawa Y., Dinakar Kanjilal and Moorthy Babu S. (2006), ‘High energy Sn ion implantation induced effects in InSb substrates’, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 244, No. 1, pp. 179-182.

    27.Veeramani P.,Haris M., Dinakar Kanjilal K., Asokan and Moorthy Babu S.  (2006), ‘Investigation of Swift Heavy Ion Irradiation Effects in CdTe crystals’, Journal of Physics D: Applied Physics, Vol. 39, pp.  2707-2710.

       

    List of Journals in Proceedings

    1.      Matthew C. Veale, Steven J. Bell, Lawrence L. Jones, Paul Seller, Matthew D. Wilson, Christopher Allwork, Dimitris Kitou, Paul J. Sellin, Perumal Veeramani and Robert C. Cernik, (2011), ‘Investigating the small pixel effect in CdZnTe Hard X-ray detectors - The PIXIE ASIC ’, Proceeding of ‘IEEE- Nuclear Science Symposium (NSS/MIC), 30th October - 06th Nov’ 2010, Knoxville, TN, USA.Link:10.1109/NSSMIC.2010.5874521, pp.3789-3792.

    2.      Matthew D. Wilson, Paul Barnes, Robert. C. Cernik, Conny C. T. Hansson, Simon Jacques, Lawrence L. Jones, Paul Seller, Member,  Paul J. Sellin, Taha Sochi, Matthew C. Veale, Perumal Veeramani, Philip J. Withers and Christopher P. Youd., (2011), ‘Comparison of the X-ray performance of small pixel CdTe and CZT detectors’, Proceeding of ‘IEEE- Nuclear Science Symposium (NSS/MIC), 30th October - 06th Nov’ 2010, Knoxville, TN, USA.Link: 10.1109/NSSMIC.2010.5874554, pp-3942-3946.

    3.      P.J. Sellin, G. Prekas, A. Lohstroh, M. Ozsan, V. Perumal, M. Veale, P. Seller, Real-time Imaging of the Electric field Distribution in CdZnTe at low temperature, Mater. Res. Soc. Symp. Proc. Vol. 1164 (2009), pp: 1164-L03-03.

    4.      M. D. Wilson, P. Seller, J. Marchal, N. Tartoni, C. Hansson, R. Cernik, M. C. Veale, V. Perumal, P. Sellin, ‘X-Ray Performance of Pixellated CdZnTe Detectors’ Proceeding of ‘IEEE- Nuclear Science Symposium, Medical Imaging Conference and 16th Room Temperature Semiconductor Detector Workshop’,   19 - 25 October 2008   Dresden, Germany.

    5.      P. Veeramani, M. Haris, D. Kanjilal, K. Asokan, S. Moorthy Babu, ‘Investigation of Swift Heavy Ion Irradiation Effect on Au/CdZnTe/In Detector’ Proceeding of ‘IEEE-Nuclear Science  Symposium, Medical Imaging Conference and 16th Room Temperature Semiconductor Detector Workshop’,   19 - 25 October 2008   Dresden, Germany.

    6.      Y. Xu, W. Jie, P. J. Sellin, T. Wang, W. Liu, P. Veeramani, M. Veale, J. Parkin, ‘Seeded Growth of Cadmium Zinc Telluride Crystals Using Modified Vertical Bridgman Method’, Proceeding of  ‘IEEE- Nuclear Science Symposium, Medical Imaging Conference and 16th Room Temperature Semiconductor Detector Workshop’,   19 - 25 October 2008   Dresden, Germany.

    7.      Veeramani P.,Haris M., Dinakar Kanjilal and Moorthy Babu S. (2005), ‘Effect of Swift heavy ion irradiation induced modifications in CdTe crystal’, Proceeding of fifth DAE-BRNS National Laser symposium(NLS-5), Vol. 5, pp.201-202, ISBN 81-903321-0-4.

    8.      VeeramaniP. and Moorthy Babu S. (2005), ‘Investigation on growth of high quality CdZnTe crystal for Device Application’, Proceeding 4th DAE-BRNS National Laser Symposium (NLS-2005), Vol. 4, p. 581,  ISBN 81-7764-734-2.

    9.      VeeramaniP. and Moorthy Babu S.  (2004), ‘Investigation on growth of high resistivity Cl doped CdTe crystal by modified Bridgman method’, Proceeding of 49th DAE Solid State Physics Symposium (SSPS-2004), Vol. 49 , pp. 994-995, ISBN 81-8372-000-5.

    Papers Presented in International/National Conferences

    1.      V. Perumal, A.Lohstroh, P.J.Sellin, M. Ayoub, A.Pym, T.Wright, ‘Defect analysis on MTPVT grown CdZnTe Crystals by PICTS’,IEEE- Nuclear Science Symposium (NSS/MIC) and 18th RTSD, 23-29th October 2011, Valencia, Spain.

    2.      V. Dedic, J. Franc, P. J. Sellin, R. Grill, and P.Veeramani, ‘Electric Field in Semiinsulating CdTe and (CdZn)Te under Laser and X-ray Irradiation’,IEEE- Nuclear Science Symposium (NSS/MIC) and 18th RTSD, 23-29th October 2011, Valencia, Spain.

    3.      D.Kitou, M.Veale, C.Allwork, P.J.Sellin, P.Seller, P.Veeramani, A.Lohstroh, M.Wilson, ‘The influence of steering electrodes on CZT pixellated x-ray detectors’, SPIE Optical Engineering + Applications 2011, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI, 21-25th August 2011, San Diego, California, USA. 

    4.      P J. Sellin,  G. Prekas, A. Lohstroh, M.E. Ozsan, P.Veeramani, ‘Performance of CZT Wafers grown by Vapour Phase Trasport’, IEEE- Nuclear Science Symposium (NSS/MIC), 30th October - 06th Nov’ 2010, Knoxville, TN, USA.

    5.      P.J. Sellin, V. Perumal, M.E. Ozsan, G. Prekas, M. Veale, A.W. Brinkman, A. Choubey, R. Cernik, P. Seller, ‘Performance of CZT wafers grown by the Multi-Tube Vapour Phase Transport technique’, SORMA XII on May 28, 2010 at University of Michigan - Ann Arbor.

    6.      Perumal, Veeramani1; Sellin, Paul J 1; Lohstroh, Annika 1; Özsan, Ersin 1; Prekas, George, ‘Electrical and optical characterisation of MTPVT method grown CdZnTe single crystals’,  The 17th American Conference on Crystal Growth and Epitaxy,August 9 - 14, 2009, Lake Geneva, Wisconsin, USA.

    7.      Veeramani Perumal, Paul J. Sellin, M. E. Ozsan, G. Prekas, Univ. of Surrey (United Kingdom); Andy W. Brinkman, Ashutosh Choubey, Durham Univ. (United Kingdom); R. Cernik, The Univ. of Manchester (United Kingdom); Paul Seller, Matthew C. Veale, Science and Technology Facilities Council (United Kingdom).‘Charge transport characterisation of CdZnTe wafers grown by the Multi-Tube Physical Vapour Transport technique’, SPIE, Optics + Photonics 2009, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI, Conference 7449 - Proceedings of SPIE Volume 7449, 2 - 6 August 2009, San Diego Convention Centre, San Diego, CA United States.

    8.      M.E Özsan, P.J. Sellin, P. Veeramani, S.J. Hinder, M.L.T.Monnier, G. Prekas, A. Lohstroh, M. A. Baker, ‘Chemical Etching  and Surface Oxidation Studies of Cadmium Zinc Telluride Radiation Detectors’, 13th European Conference on Applications of Surface and Interface  Analysis, October-18-23, 2009, Antalya, Turkey.

    9.      M.Veale,P.Seller, M.Wilson, D.Kitou, P.Veeramani, P.J.Sellin, A.W.Brinkman, A.Choubey, Y.Xu, ‘CdZnTe Characterisation at the Rutherford Appleton Laboratory’, Workshop in Warsaw entitled "CdTe, (Cd,Zn)Te and (Cd,Mn)Te crystals for nuclear radiation spectrometry - the best methods to reduce Te precipitates and inclusions arising during crystal growth. Effect of post growth annealing and importance of residual impurities and compensating dopants" held 12-13 September 2009.

    10.D. Kitou, P. Sellin, A. Lohstroh, P. Veeramani, M. Veale,Effects of annealing on IR images of CdZnTe, , Workshop in Warsaw entitled "CdTe, (Cd,Zn)Te and (Cd,Mn)Te crystals for nuclear radiation spectrometry - the best methods to reduce Te precipitates and inclusions arising during crystal growth. Effect of post growth annealing and importance of residual impurities and compensating dopants" held 12-13 September 2009.

    11.G. Prekas, P. Veeramani, A. Lohstroh, P. J. Sellin, ‘Investigation of Polarisation Phenomena in CdZnTe Materials to Be Used as X-Ray Radiation Detectors by Direct Implementation of the Electric Field Distribution Profiles at Low Temperature and under in Situ X-Ray Irradiation’, IEEE Nuclear Science Symposium and Medical imaging conference, 25-31 October, Orlando, Florido, USA.

    12.Veeramani P.,P. J. Sellin, A. Lohstroh, E. Özsan and G. Prekas, ‘Charge Transport Properties of MTPVT Method Grown CdZnTe Single Crystal’, XV International Workshop on the Physics of Semiconductor Devices,December,15-19th 2009, Solid State Physics Laboratory, Delhi, India.

    13.Paul Sellin, Georgios Prekas, Spyros Gkoumas, Annika Lohstroh, Mehmet Özsan, Veeramani Perumal and Matthew Veale, ‘Real-time Imaging of the Electric Field Distribution in CdZnTe during X-ray Irradiation’, ‘2009 MRS Spring Meeting- Symposium L: Nuclear Radiation Detection Materials’April 14 - 16, 2009, San Francisco.

    14. A. Lohstroh, P.J. Sellin, S. Gkoumas, H. Al-Barakaty, P. Veeramani, M. E. Özsan,G. Prekas, M. C.Veale, J.M. Parkin, A. W. Davies, ‘The effect of fast neutron irradiation on the radiation detection performance of  synthetic  single crystal diamond devices’, Hasselt diamond workshop 2009, SBDD XIV.

    15. Veeramani Perumal, Paul J. Sellin, M. E. Ozsan, G. Prekas, ‘Metal Semiconductor interface study and Effect of surface passivation on CdZnTe pixellated array device’ Proceeding of ‘IEEE-Nuclear Science  Symposium, Medical Imaging Conference and 16th Room Temperature Semiconductor Detector Workshop’,   19 - 25 October 2008   Dresden, Germany.

    16. P.J. Sellin, A. Davies, A. Lohstroh, M.E. Ozsan, J. Parkin, V. Perumal, M. Veale, H. Chen, ‘Photoluminescence and Charge Transport studies of CdZnTe grown by the Travelling Heater Method’, IEEE Nuclear Science symposium,  Oct’07.

    17. Haris M., Veeramani P., HayakawaY. and Moorthy Babu S., ‘Structural, Optical, Electrical characterisation of InAsxSb1-x bulk single crystals and Growth rate measurements’, ‘3rd Asian Conference on Crystal Growth and Crystal Technology (CGCT-3), during Oct. 16-19, 2005 at Beijing, China.

    18. Veeramani P. and Moorthy Babu S., ‘Growth of CdTex and
    Cd1-xZnxTe single crystals for DetectorApplication’, 3rd Asian Conference on Crystal Growth and Crystal Technology (CGCT-3)’, during Oct. 16-19, 2005 at Beijing, China.

    19. Haris M., Veeramani P., Jayavel P., Hayakawa Y., Dinakar Kanjilal and Moorthy babu S., ‘High Energy Sn ion implantation induced effects in InSb substrates’, ‘Indo-German workshop on Synthesis and Modification of Nano-Structured materials by energetic ion beams’, during Feb. 20-24, 2005 at Nuclear Science Centre, New Delhi.

    20. Veeramani P., Khan S.A., Dinakar Kanjilal and Moorthy Babu S. ‘Structural Property analysis of Ag-irradiated CdTe crystal’, Indo-German workshop on Synthesis and Modification of Nano-Structured materials by energetic ion beams, during Feb. 20-24, 2005 at Nuclear Science Centre, New Delhi.

    21. Participated – ‘International School – Nano Structuring by Ion Beams’, during Feb. 18-19, 2005 at Nuclear Science Centre, New Delhi.

    22. Veeramani P.and Moorthy Babu S., ‘Effect of Ag-ion irradiation on structural and optical properties of CdTe single crystals’, 34th National Seminar on Crystallography 2005’, during Jan. 10-12, 2005 at Gauhati University, Guwahati.

    23. Veeramani P. and Moorthy Babu S. (2004), ‘Influence of
    off-stoichiometric charge composition on CdTe grown by modified Bridgman Technique’, 14th International Conference on Crystal Growth- 2004’, during Aug. 9-13, 2004 at Grenoble, France.

    24. VeeramaniP. and Moorthy Babu S. (2004), ‘Growth and characterization of Te rich CdTe by modified Bridgman Technique’, XXXIII National Seminar on Crystallography-2004, during Jan. 8-10, 2004 at National Chemical Laboratory, Pune. 


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