Radiation Physicist
Osi Systems
Trent,on,Stoke,Reino Unido
16d ago

Rapiscan Systems is an industry leader in detection technology, providing cargo and vehicle inspection systems and services for ports, borders, military, high-

threat facilities, and checkpoints to help customers combat terrorism, drug smuggling, illegal immigration, and trade fraud.

We offer a broad array of scanning system configurations that leverage low-, medium-, and high-energy X-ray technology or multiple X-

ray technologies to address each customer’s unique security application requirements. Our commitment to excellence in imaging performance, innovative design, and uncompromising quality ensures our solutions consistently deliver best-

in-class imaging, high reliability, and operator satisfaction, to help customers find threats and contraband with ease and confidence.

The physicist will specifically work on the design, implementation and V&V of high-energy X-ray sources and detector assemblies for use in the Non-

Intrusive Cargo and Vehicle Inspection industry. This is part of part of an expanding Science and Technology team to drive forward the R&D road map for the business.

Working alongside other physicists, software and electronics engineers they willl all bring innovative designs and concepts to market in a quick-

turn around and fast-paced environment to help expand market share, whilst supporting legacy programs and existing schemes of work.


  • Report to the Technical Director and co-ordinate with other members of the S&T and engineering teams.
  • Develop tools and techniques to help anticipate system imaging performance for future units, analyse X-ray images on current units and identify faults / failures on existing systems.
  • Collaborate with linear accelerator and detector vendors to trial and test new modes of operation, configurations and designs for enhanced X-
  • ray image performance capabilities.

  • Develop and maintain analytical models to predict detector response to X-ray illumination.
  • Explore operator assist tools using image analytics and deep learning techniques to identify suspicious items within X-ray images.
  • Support programs and projects to deliver fully compliant X-ray imaging systems at customer acceptance tests, both on site and at customer facilities world-wide.
  • Take an active role in the support of radiation exposure, leakage and safety aspects for the operation of new and existing linear accelerator platforms at the Rapiscan facility.
  • Develop and maintain analytical models to predict X-ray exposure to operators and members of the public.
  • Take responsibility for the design of X-ray based imaging systems for inspection of cargo and vehicles.
  • Undertake system-level design and underlying physics analysis including : -
  • Top down design of new projects in support of tender processes.
  • Bottom up design of new technologies from imaging basis.
  • Provision of image processing, data analysis and experimental work as required.
  • Build interactions with other global departments to encourage pull-through of new R&D.
  • Provide supervision of external University projects.
  • As per company policy :

  • Uphold the company’s core values of Integrity, Innovation, Accountability, and Teamwork
  • Demonstrate behavior consistent with the company’s Code of Ethics and Conduct
  • It is the responsibility of every employee to report to their manager or a member of senior management any quality problems or defects in order for corrective action to be implemented and to avoid recurrence of the problem
  • Duties may be modified or assigned at any time to meet the needs of the business.
  • Qualifications

  • A postgraduate degree (preferably PhD) in physics although graduates with relevant industrial experience will be considered.
  • Graduate / Postgraduate experience in radiation physics with experimental background.
  • Experience using Matlab for data analysis and C# for desktop application development.
  • The ability to work with others in a multi-disciplinary, fast-paced product development environment.
  • Willingness to support offsite (world wide) programs of work often at short notice.
  • Experience with programming in C++ to create Geant4 Monte Carlo models in Windows and Linux environments is highly desirable
  • Exposure to deep learning techniques for image classification would be advantagous.
  • OSI Systems, Inc. has three operating divisions : (a) Security, providing security and inspection systems, turnkey security screening solutions and related services;
  • b) Healthcare, providing patient monitoring, diagnostic cardiology and anesthesia systems; and (c) Optoelectronics and Manufacturing, providing specialized electronic components and electronic manufacturing services for original equipment manufacturers with applications in the defense, aerospace, medical and industrial markets, among others.

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