Physics Consultants: 4

COMPANY DESCRIPTION:

• Expert Witness - Medical malpractice, misadministration, medical event (Radiation Oncology, Radiology, Nuclear Medicine)
• Expert Witness - Radiation exposure, radiation dose, radioactivity and radiobiological calculations
• Expert Witness – Patent infringement (intellectual property all categories)
• Expert Witness – Medical physics, supervision of (medical physicist, dosimetrist, radiation therapist, radiologic technologist)
• Expert Witness - Termination of employment

Michael S. Gossman, M.S., DABR, FAAPM, is a Board Certified Qualified Expert Medical Physicist, an honorary Fellow of the American Association of Physicists in Medicine (AAPM), and the Chief Medical Physicist & Radiation Safety Officer (RSO) in Radiation Oncology at a clinic in Indiana. Chief Gossman is directly and ultimately responsible for all technical and scientific aspects of cancer treatment. He directly supervises and oversees efforts from staff medical physicists, dosimetrists, radiation therapists and x-ray technologists. 

Chief Gossman is the highest ranking scientist in medicine and has been in the field for 24 years. Chief Gossman's expertise involves the safe, effective and precise delivery of radiation to achieve the therapeutic result prescribed in patient care by radiation oncologists striving to treat cancer patients with particle accelerators and radioactive material. 

Extra-professionally, Chief Gossman is retired as the Interim Editor-in-Chief and Editorial Board Member for the Medical Dosimetry Journal, Editorial Board Member for the Journal of Applied Clinical Medical Physics, served four years as a Medical Consultant to the U.S. Nuclear Regulatory Commission, and was a veteran Accreditation Site Reviewer for both the American College of Radiology (ACR) and the American College of Radiation Oncology (ACRO). He was a 2-term Ohio River Valley Chapter President of the AAPM, and was also formerly a Graduate School Professor of Clinical Medical Physics at Wright State University.

As an expert in radiation safety, dosimetry, detector measurements, particle accelerator and radioactive material calibrations, and radioactive material handling, Chief Gossman is a highly respected medical physicist by medical physicists nationally. He is also the owner of Regulation Directive Medical Physics, which he created as a consulting company, providing services for medical physics, dosimetry, medical device testing, and expert witness efforts.

Services Provided:

• Medical expert witness
• Medical consultant
• Legal consultant
• Review of: medical event, malpractice, and misadministration
• Regulatory compliance
• Investigation and audits
• Independent medical evaluation of the probable deterministic effects of radiation exposures
• Facility practice vs. standards review
• Accreditation preparation
• Shielding calculations
• Accelerator acceptance testing & commissioning
• Quality assurance
• Peer review of the Chief Medical Physicist
• Radiation measurements
• Radiation calculations
• Radiation safety
• Dose determination
• Calibration of medical accelerators
• Treatment planning
• Calculation of time and dose for treatment
• Handling, shipping, receiving, and storing radioactive material
• Calibrating radioactive material
• Regulatory compliance
• Interpretation of bioassay results and other data related to radiation exposure
• Calculation of internal and external radiation doses, as necessary

Dr. David W. Riley is an Extrusion Analysis & Plastics Rheological Consultant. Dr. Riley has spent over nineteen years as a consultant in the field of Plastic Processing. He has over forty years of experience in developing Polymer Defect Technology and fifteen years in developing the field of Plastic and Polymer coefficient of friction related to the feed section of the extruder.

Areas of Expertise:

• Expert Witness
• Analytical Instrumentation Adaptation to Processing Equipment
• Friction Analysis
• Melt Rheology
• Extrusion Equipment: Design & Analysis of Production
• Telecommunication Cables and Insulation
• Power Cables and Testing XLDPE
• All phases of PVC Compounding & Extrusion
• Thermal Stability of Polymers
• Surface Chemistry, Metals & Polymers

Howard J. Cohen, PhD, has over 30 years of experience in Software Engineering, Architecture and Implementation. He possesses particular expertise in Algorithms, Relational Databases, Graphical User Interfaces (GUIs) and Software Applications in general. His experience has been in a broad spectrum of technology, in several languages, in a wide variety of applications, and on multiple platforms. Dr. Cohen's background includes Electronic Design Automation, Bioinformatics, Digital Cartography, Banking Systems for Foreign Exchange Traders, and many more. He is the co-inventor on approximately 120 patents.

Since 1979, Dr. Cohen has served as a Software Development Consultant to several major Silicon Valley businesses including Nortel Networks, Surromed, Incyte Genomics, BomDiver, Canon Information Systems, WeatherNews, PetroSoft, LSI Logic, Aspect Development, Abbott Laboratories, ETAK, Engineering DataXpress, Nikon Precision, Diasonics, Daisy Systems, Rolm, Oceanroutes, Mindcraft, and Integrated CMOS Systems. Concurrently, he has also held full time senior engineering and management positions with such companies as Tibco, Zycad, ETAK, and the NASA Ames Research Center.

Dr. Cohen's Consulting Services are available to companies needing software development involving problem definition, analysis, design modeling, documentation, programming, and implementation. Consulting services are also available issues regarding Trade Secrets, Copyright and Patent Infringement, and Computer Software Security and Forensics.

View Expert Witness Profile

Dr. David Schaafsma, PhD has over 25 years of experience in Optical Systems, Optical Physics, Microscopy & Spectroscopy, Optical Materials, Lasers, Optoelectronics, Sensors, Data Acquisition, Product Development. sales, marketing, business development, operations, and management at small businesses, at government laboratories, and as an independent consultant. Before founding Applied Optical Engineering, Dr. Schaafsma was the director of Sensor Technology at Tetra Tech Data Systems (later Ipitek) and was responsible for all R&D, product development, and commercial activity in fiber optic sensors, and also worked on numerous projects involving fiber communications and embedded systems. As a Senior Scientist at the Naval Research Laboratory, he made the first chalcogenide fused fiber coupler and achieved the first results with single-mode IR-transmitting fiber in mid-IR scanning near-field microscopy. At the National Institute of Standards and Technology in Boulder, Dr. Schaafsma's research focused on Quantum Optics and Fundamental Metrology of Vertical-Cavity Surface-Emitting Lasers, and included the construction of a confocal fluorescence system with a noise floor of 4 photons. As a Senior Characterization Engineer at Bandgap Technology Corp., he oversaw the production of compound semiconductor devices such as surface acoustic wave (SAW) modulators, vertical-cavity surface-emitting lasers (VCSELs), high electron mobility transistors (HEMTs), solar cells, and laser diodes for an industry which was then in its infancy. Dr. Schaafsma holds two patents, a near-field optical microscope with infrared fiber probe and an infrared optical fiber coupler. He has spoken about many topics at professional venues such as conferences, to potential clients and corporate officers of multi-billion dollar companies, as well as to classes of students. Dr. Schaafsma is also a noted authored having written numerous publications in his areas of expertise. Areas of Expertise

Medical Product Design / Development Optics – Geometric, Diffractive, Waveguide, Optical Technology, Optical Materials Networks, Data Links, Protocols Fiber Optics Lasers & Light Systems Embedded Computer Systems, Microcontrollers Infrared Materials, Technology, Products Imaging & Microscopy (SEM & Optical), Spectroscopy

Software & Programming, Embedded & High Level Languages Electronics, Embedded Design Sensors, Data Acquisition Semiconductor Metrology, Photovoltaics, Renewables Project Planning / Management ISO 9000, SPC Tooling / Process Development Market / Patent Research Grant Writing

View Dr. Schaafsma's Expert Witness Profile.