Postdoc - Cone Beam CT Image Quality

Function description

Radiotherapy is a treatment modality of cancer where patients receive a high radiation dose localized to the tumor, while minimizing the exposure of surrounding normal tissue. To guarantee that the tumor is irradiated as intended, imaging techniques have been developed that visualize the tumor at the time of treatment. The Netherlands Cancer Institute, with the specialized care of the Antoni van Leeuwenhoek Hospital, has a long history of research in Image-Guided Radiotherapy (IGRT). Cone Beam CT (CBCT) is an image modality widely used in IGRT to capture the patient’s anatomy just prior to treatment and align the patient to the treatment machine. The image quality of CBCT, however, is inferior to diagnostic CT due to the imaging geometry, hardware limitations and motion artefacts. The applicability of CBCT in advanced adaptive strategies and motion management is therefore currently limited. The postdoc will develop and clinically evaluate novel reconstruction algorithms, acquisition methods, artefact corrections and motion compensation techniques to improve the image quality of 3D and time resolved CBCT.

Job requirements

Does this appeal to you and can you identify yourself with the following conditions, we would like to invite you for an interview:
  • A PhD in (medical) physics or similar.
  • An interest in image processing, artificial intelligence and reconstruction
  • Good programming skills
  • Team player in a challenging diverse clinical environment
  • Fluent in spoken and written English


You will work in a dynamic international scientific environment and collaborate with colleagues at the Antoni van Leeuwenhoek Hospital, the NKI and at other institutes. With the innovation and growth our organisation has planned for the coming years, your personal development and growth are also central. Of course we are open to initiatives that support the development of both yourself and our department.

The employment will be for a period of 3 years. The gross salary will range from € 3.375,- and € 4.111,- per month for a fulltime position, according to the FWG-function group 55, depending on previous experience as a postdoc. The terms of employment will be in accordance with the CAO Ziekenhuizen (Collective Labour Agreement for Hospitals).
In addition you will receive a fixed end-of-year bonus in December (8,33%) and in May you will receive 8,33% holiday pay. For more information in regard to the secondary conditions please contact the recruiter via:

For further information please contact Jan-Jakob Sonke, Group leader, +31 20 5121731

Your application letter and resume can be attached to the application form on our website.

Acquisition for this vacancy is not appreciated.


  • Sluitingsdatum: 31-12-2020
  • Full time: Yes
  • Hours per Week: 36
  • Salary level: FWG 55
  • Education level: WO
Carly  DeSantis

Carly DeSantis

Jan-Jakob  Sonke

Jan-Jakob Sonke


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