Costel Rizescu

Curriculum Vitae

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Summary of Qualification

  • Highly skilled and accomplished professional with over 15 years combined experience in Gamma and X-ray Computerized Tomography (CT), Spectroscopy, Photometry, Detectors, Immersed Ultrasound, and the latest technology used in Digital Imaging Systems and Biomedical Equipment.
  • Physics Engineer with over 6 years extensive experience in clinical equipment and solid background in engineering and technology solutions. Skilled in design, testing, verification, and validation computer controlled automated instrument subassemblies, troubleshooting complex biomedical equipment, writing verification and/or validation protocols, as well as solid understanding of experimental techniques.
  • Ph.D. in Physics with strong background in radiation and photon interactions, ultrasound and biomedical solutions, simulate, design and implement experiments, acquire and analyze data with proven record of accomplishments in publishing results.

    • Education

    Ph.D., Nuclear Physics, Atomic and Nuclear Department, Faculty of Physics – University of Bucharest, Romania, Magna Cum Laude, 2001
    Advisor: Dr. Calin Besliu
    Thesis Title: Contributions to the Study of the Materials Structure by Gamma-Ray Computerized Tomography Method
    Abstract: The author developed a new dual-energy CT method and applied it for structural investigations in geology, paleontology, and archaeology. This method accurately characterizes the materials interior structure by mapping local density and effective atomic number by using gamma radiation from 192-Ir radioisotope. Structural parameters of sedimentary and metamorphic rocks, polymetallic nodule, corals, fossils, and marine cores, such as: degree of mineralization, total or partial porosity, volumetric and mass concentration of fractions of material, bulk/local density and effective atomic number, and stratigraphy frequency have been determined and analyzed. By scanning archaeological artifacts, the author detected a counterfeit work of art, identified restoration and preservation procedures for the oldest cannon in Romania presenting signs of severe deterioration, and determined the work of arts internal structure for evaluation purposes. An original gamma collimator for micro-tomography and its applications and results are also presented.

    Master of Science, Physics / Nuclear Engineering, Faculty of Physics – University of Bucharest, Romania, GPA: 3.6/4.0, 1990
    Advisor: Dr. Emil Toader
    Thesis Title: Studies of ionizing currents in cold plasma

    Certifications and Licenses

  • Level II Radiography Testing Certificate (equivalent to ASNT Certified NDT Level II, RT), certified by National Agency for Nuclear Activities Control, valid until 2004
  • Medical Technologist licensed by Romanian Health Ministry, valid until 2006

    • Awards

  • Performance Award for excellence in developing of imaging technologies, "Electrical Engineering Annual Session – present and prospects", Bucharest, June 2000

    • Research Grants Awarded

  • Romanian Ministry of Education and Research, Studies of archaeological artifacts by dual-gamma computerized tomography method, 2002
  • Romanian Ministry of Research and Technology, Applications of computerized tomography in marine and geological research, 2000-2001
  • Romanian Academy of Sciences, Applications of radiation imaging systems, 1998-2000

    • Professional Highlights

    PHYSICS ENGINEERING - Biomedical Equipment and Industrial Imaging Systems
  • prototyped custom versions of UV-VIS-IR photometers, sterilizers, centrifuges and biomedical equipment subassemblies
  • design, built, tested, installed, calibrated and operated prototypes of industrial testing system: CT scanners, densitometers, ultrasound immersion systems, and digital inspection equipment (using X-tubes, and Cs-137, Ir-192, Co-60, Am-241 radioisotopes and array detectors to map materials density)
  • experimented and developed original collimators, detectors (Cd-Te room temperature, CsI, BGO), and torque sensors for computerized testing of electro-mechanical systems
  • managed development of testing software, produced documentation (7 guide manuals) and worked with a quality assurance team - ensuring compliance with quality requirements.

    • FIELD SERVICE & TECHNICAL SUPPORT

  • over 5 years experience in providing field service and sales support for high-tech medical equipment and software including biochemistry, hematology, immunology, x-ray, ultrasound, electrophoresis, sterilizer, centrifuges, pumps, microscopes, suction units
  • skilled in installing, operating, and troubleshooting Computerized Tomography scanners, densitometers, digital imaging systems, ultrasound, microscopy and spectroscopy instruments, with ability to work long hours, travel extensively and attend training programs; developed excellent relationships with customers in healthcare and industry
  • experienced in troubleshooting electronic and mechanical problems, working with radioactive materials, O-scopes, radiation survey and digital test instruments
  • developed and conducted customized, state-of-the-art training and furnished ongoing technical support to field service engineers, sales representatives and customers; developed excellent communication and customer interface skills. go to top

    • RESEARCH & DEVELOPMENT

  • experimented gamma, X-ray and ultrasound physics to develop data acquisition and processing techniques for imaging systems and clinical photometers using the latest detection technologies (Si photodiode array, BGO, CsI, Cd-Te detector, high frequency ultrasound transducer)
  • developed/implemented advanced algorithms and applications for 3-D computerized tomography imaging. Authored "The dual-energy CT method with 192-Ir radioisotope for determination of local density and effective atomic number"
  • pioneered applications of CT imaging in archaeology, geology, forest & tree sciences, marine research, and airport and custom security (to identify drugs and explosives) in Romania
  • performed studies and complete data analysis to provide performance reports and recommendations for manufacturers of biomedical equipment and reagents (BioSystems – Spain, Roche – Switzerland)
  • experimented techniques to improve the reconstruction algorithm of electrical impedance tomography
  • designed and experimented lithotripter with focused high-energy ultrasound shock waves
  • published 23 scientific papers, participated to 11 international workshops and cooperative projects.

    • MANAGEMENT and SUPERVISION

  • managed project planning and scheduling, through hardware/software specification and acquisition, equipment construction, implementation, testing, documentation, and field use
  • experienced administrating research and development activities - coordinated 6 national research projects in implementing industrial imaging technologies in the benefit of end-users (industry, geology, environmental agencies, police and defense departments, museums and churches)
  • supported up to 15 team members in achieving companies’ goals as excellent team leadership and interpersonal skills, team player with ability to work effectively with all levels of organization.


    • Employment Experience

    Volunteer Consultant, MEDISEND INTERNATIONAL, Dallas, U.S.A., 2005 – present
  • designed, planed, organized, and conducted all technical projects in starting-up a 8,000-sq. ft. Biomedical Workshop for refurbishing medical equipment (first one in Dallas-Fort Worth metroplex area)
  • applied engineering principles to design, modify, and develop facilities, testing, equipment, and processes used in processing and refurbishing biomedical products
  • designed new or modified existing facilities considering costs, company planning and other technical and economic factors
  • provided input to the CEO on operating budget, work force utilization, space requirements and workflow
  • arranged for purchase of equipment, materials and parts and evaluated products according to quality standards
  • trained and managed interns and volunteers in repairing biomedical equipment, and assisted Medical Mission Ambassadors with the selection process, inventorying, and packaging of biomedical equipment.

    Physics Engineer, General Manager, LABSYSTEMS, Bucharest, Romania, 2002 – 2004
  • designed and built photometers, sterilizers, centrifuges, and biomedical equipment subassemblies
  • educate medical doctors, technologists and graduate students on full field biomedical technologies and practices
  • represented 5 foreign companies in Romania as their national distributor for biomedical equipment (biochemistry, hematology, sterilizer, centrifuges, suction units, microscopes)
  • provided field service and technical support for high tech equipment (GE, Krautkramer, Seifert, Canberra, Philips, Siemens)
  • performed research grant for applying computerized tomography method in archaeology and contributed to the development of a new x-ray tomography equipment for airports security (to identify drugs and explosives)
  • established firm, identified target markets in the Healthcare System and NDT industry, associated with entrepreneurial start-up. Managed time, personnel, and finances efficiently, were maximizing impacts with minimum resources. Doubled firm’s turnover over 50 sale contracts.

    Field Engineer, Department Manager, PHOENIXMED, Bucharest, Romania, 2000 - 2002
  • performed experiments with scientific and biomedical equipment to evaluate the accuracy of measurements, and find technical solutions to improve test procedures
  • designed and applied methods to investigate product performance for clinical equipment and reagents
  • provided field service, training and customer support for medical equipment including biochemistry, hematology, x-ray, electrophoresis, sterilizer, infusion pump
  • established Diagnostic Department, recruited six employees, identified target markets, negotiated contracts with foreign manufacturers. Wrote and presented report to top executives including strategic recommendations. Helped firm to increase its turnover with over $1.8 million in 2001. go to top

    Physicist (part-time), RESEARCH and DESIGN INSTITUTE for ELECTRICAL ENGINEERING, Bucharest, Romania, 2000 - 2002
  • performed research grant for applying Computerized Tomography method in geology/marine research.

    • Senior Researcher, Staff Scientist, RESEARCH and DESIGN INSTITUTE for ELECTRICAL ENGINEERING, Bucharest, Romania, 1990 - 2000
  • experimented, designed, tested, and calibrated radiation components of various imaging systems (set-up radiation detection geometry, detector systems, data acquisition and processing system, radiation shielding, calibrator materials, determined modulation transfer function and reconstruction algorithms)
  • development of materials characterization methods based on use of gamma, x-ray, ultrasound, and electrical impedance
  • initiated studies of novel high spatial resolution 3D computerized tomography equipment
  • installed and operated CT scanners, gamma-densitometers, ultrasound equipment, Gamma and X-ray digital imaging systems, and lithotripter
  • supervised graduate students in NDT research projects
  • built an experimental tomograph for educational purposes (University of Bucharest - Faculty of Physics)
  • managed Industrial Tomography Nuclear Unit (1999-2000) with 6 scientists.

    Selected Publications List

    1) Duliu, Gh., O., Preoteasa, F., Rizescu, C., Georgescu, G., (2004) X and Gamma - Ray CAT Investigation of Fungia fungites L. (Cnidaria, Scleractinia) Coral Skeleton, Journal of Trace and Microprobe Techniques, Volume 21, No. 3, 493 - 500
    2) Rizescu, C., Besliu, C., Jipa, A., Neacsu, I., (2003) Complex analysis of the “Cannon of Giurgiu” by Computerized Tomography with 192-Ir, Journal of Archaeological Science, Volume 29, Issue 3, Pages 267 - 275
    3) Duliu, O., G., Rizescu, C., Rickman, C., (2003) Dual energy gamma-ray axial computer tomography investigation of some metamorphic and sedimentary rocks, Neues Jahrbuch für Geologie und Paläontologie Abhandlungen, 228 (3), 343 - 362
    4) Rizescu, C., Besliu, C., Jipa, A. (2001) Determination of local density and effective atomic number by the dual-energy computerized tomography method with 192-Ir radioisotope, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume A 465, Issues 2-3, Pages 584 - 599
    5) Rizescu, C., Georgescu, Gh, Duliu, O. (2001) High density mineral inclusions in rocks evidenced by Gamma-ray tomodensitometry, Journal of Trace and Microprobe Techniques, Volume 19, No. 1, 119 - 129
    6) Rizescu, C., Georgescu, Gh, Duliu, O., Szobotka, S., (2001) 3-D dual gamma-ray computer axial tomography investigation of polymetallic nodules, Deep Sea Research, Part I: Oceanographic Research Papers, Volume 48, Issue 11, Pages 2529 - 2540
    7) Iovea, M., Georgescu, Gh., Rizescu, C., Chitescu, P., (1999) Some aspects concerning the 2D and 3D computerized tomography applied in non-destructive testing, The e-Journal of Nondestructive Testing & Ultrasonics, July 99 Issue Volume 4, No.7 (Launched at 1.7.1999 on the Internet at www.ndt.net)
    8) Iovea, M., Marinescu, M., Rizescu, C., Georgescu, Gh., (1997) An object oriented modeling system for interaction simulation in 3D industrial tomography, Proceeding of the 19th International Conference on INFORMATION TECHNOLOGY INTERFACES, Pula, Croatia, 17-20 June, 457 - 462
    9) Iovea, M., Marinescu, A., Chitescu, P., Rizescu, C., Georgescu, Gh., (1996) Graphic environment for industrial computerized tomography, Proceedings of The Fourth International Conference in Central Europe on Computer Graphics and Visualization 96, University of West Bohemia, Plezen, Czech Republic, February 12-16, 267 - 268

    Computer Proficiency

  • Broad experience with Windows systems, HTML 4.0.
  • High proficiency in Word, Excel, PowerPoint, Microsoft Access, CorelDraw, DreamWeaver, scientific and industrial software, Internet applications
  • Knowledge of MATLAB

    • Training Received

  • Service & Clinical Applications - Barcelona, Spain, and Dusseldorf, Germany, 2001
  • Nondestructive Testing with X and Gamma-Rays, Ultrasound, Liquid Penetrant, training course - Bucharest, Romania, 1993
  • Use of Radioactive Isotopes, postgraduate course - Bucharest, Romania, 1992

    • Languages

  • English, proficient
  • Romanian, native

    • Other Interests

  • World history, geography, photography, rock climbing, tennis, gardening, environmental issues
    •

    Citizenship

  • Romanian citizen moved recently to U.S. (posses H4 visa). Needs sponsorship to work in U.S.
    •

    References available upon request



    LIST of EQUIPMENT that I have hands-on experience operating and repairing
     (list by modality/ manufacturer/ model/ experience/ last time worked with equipment)

    X-ray systems & CT scanners
  • Industrial X-ray/ GE-Seifert/ Isovolt Series/ 5 years experience/ 2004
  • Medical X-ray/ VILLA SISTEMI MEDICALI/ Moviplan / 6 months experience/ 2002
  • Medical CT/ Siemens/ SOMATOM Plus/ 6 months experience/ 1996
  • Medical X-ray/ Philips/ C-arm BV Endura/ 1 year experience/ 2003
  • Industrial CT scanners/ R&D Institute for Electrical Engineering/ TOMO-RAY Series (first and second generation of CT scanners built in Romania)/ 12 years experience/ 2003
  • Gamma Scanning Densitometers/ R&D Institute for Electrical Engineering/ RAY-DENSIMAT/ 12 years experience/ 2003
    Ultrasound systems
  • HP SONOS 500, 2000 Imaging Systems / Hewlett-Packard / 1 year experience / 2005
  • Industrial Ultrasound systems/ GE - Krautkramer/ USIP 12/ 14 years experience/ 2004
  • Immersed systems/ R&D Institute for Electrical Engineering/ ULTRASCAN/ 6 years experience/ 2000
    Gamma Spectroscopy
  • Multichannel Analyzers/ Canberra/ AIM, ASA-100, DSA-100, DSA-200/ 4 years experience/ 2004
    Biochemistry analyzers
  • Clinical Chemistry/ BioSystems/ BTS-310, BTS-330, BTS-370 Plus, A-25/ 5 years experience/ 2005
  • Clinical Chemistry/ Awareness Technology, Inc./ Stat Fax 1904+, 3300/ 5 years experience/ 2005
  • Clinical Chemistry/ Roche/ COBAS MIRA Plus/ 5 years experience/ 2005
  • Clinical Chemistry/ Roche Hitachi/ Hitachi 902, 911/ 3 years experience/ 2005
  • Clinical Chemistry/ DiaSys/ StarDust Photometers/ 3 years experience/ 2005
  • Clinical Chemistry/ Beckman Coulter/ SYNCHRON CX 7/ 1 year/ 2002
  • Clinical Chemistry/ Dade Behring/ Dimension AR/ 1 year/ 2003
  • Clinical Chemistry/ Alfa Wassermann/ ACE/ 1 year/ 2004
    Hematology analyzers
  • Clinical Hematology/ ERMA/ PCE-170, PCE-210/ 3 years experience/2005
  • Clinical Hematology/ SYSMEX/ KX-21/ 4 year experience/ 2005
  • Clinical Hematology/ Beckman Coulter/ AT Series, MAXM/ 1 year experience/ 2004
  • Clinical Hematology/ Abbott Laboratories/ CELL-DYN 1700/ 1 year experience/ 2004
  • Clinical Hematology/ ABX Diagnostics/ Pentra 60, 80/ 2 year experience/ 2004
    Electrophoresis analyzers
  • Clinical Electrophoresis/ BioSystems/ BTS-245/ 4 years experience/ 2004
  • Clinical Electrophoresis/ Beckman Coulter/ APPRAISE Densitometer/ 3 years experience/ 2005
    Immunology systems
  • ELISA readers/ Awareness Technology, Inc./ Stat Fax 2100, 3200/ 2 years experience/ 2004
    Sterilization equipment
  • Autoclaves/ STURDY/ SA, HL series/ 5 years experience/ 2005
  • Autoclaves/ Prestige/ 210001, 210002/ 5 years experience/ 2005
  • Autoclaves/ Tuttnauer/ EA, EKA, EHS, M, MK series/ 4 years experience/ 2005
  • Ovens/ Memmert/Universal, Vacuum/ 3 years experience/ 2005
  • Incubators/ Memmert/ Model S/ 3 years experience/ 2005
    Laboratory Centrifuges
  • Centrifuges/ Hettich/ EBA, Mikro, Rotofix, Universal, Haematokrit, Rotina, Rotanta series/ 5 years experience/ 2005
  • Centrifuges/ Gemmy/ PLC tabletop series, universal, haematocrit/ 5 years experience/ 2005
  • Centrifuges/ Beckman Coulter/ SPINCHRON, I5, DLX series/ 5 years experience/ 2005
    Infusion Pump
  • Syringe Pump/ Graseby/ MS16A, MS26, 3100, 3300, 3400/ 3 years experience/ 2004

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