Medical or Accelerator Physicist

Munich and Garching · full-time (32h – 40h / week negotiable) · permanent · starting as soon as possible · reporting directly to the management

CollimateHealth is a TUM spin-off at the intersection of physics, engineering and health. We develop the world’s first clinically scalable microbeam radiation technology designed to reshape the way cancer is treated. Until now, microbeams could only be produced at large synchrotrons; with our compact source, we reduced the space needed to less than 10 m². Now, we are building the first clinical devices and we need you to be part of our team.

Our core technology is a patented line-focus x-ray tube with special electron beam focusing, a rotating target, an ultra-high vacuum system, and a powerful cooling. The x-ray beam is shaped into microbeams by a multi-slit collimator, which is housed in the beam applicator together with safety equipment. Commissioning, operation, and preclinical testing will be performed by our in-house control system from early 2027.

As our applied physicist, you are responsible for the radiation physics side of our first clinical device: radiation protection, clinical site, dosimetry, and quality assurance on the way from prototype to first-in-human.

What you bring:

• University degree in physics, medical physics, accelerator physics, medical engineering, or similar, or equivalent hands-on experience.
• Solid knowledge of radiation physics, e.g. x-ray interaction with matter, dosimetry, or radiation protection.
• Hands-on lab experience and experience in technology development, ideally with x-ray or other radiation sources.
• Experience with simulations of radiation transport (e.g. Monte Carlo, Geant4, TOPAS).
• Good Python programming skills, including threading, and experience in programming software that remotely controls lab equipment (e.g. via SCPI).
• Drive, a hands-on “just try it” mentality, and the will to take responsibility.
• Very good communication skills in an interdisciplinary team.
• Proficiency in written and spoken English; German is a plus.

Nice to have:

• Experience in clinical radiation therapy, radiation protection (e.g. Fachkunde im Strahlenschutz Röntgentherapie), or radiochromic film dosimetry.
• Hands-on electrical engineering or electronic hardware development; manual mechanical skills.
• Linux and network skills.
• Experience with high voltage, vacuum technology, or machine safety; medical device standards (e.g. IEC 60601, IEC 62304).
• ISO 13485, technical documentation for medical devices, and work in a regulated environment.

What you do:

• Radiation protection for the clinical device. You simulate the required shielding thickness, plan its construction (shielded walls, labyrinth, door with interlock), and install it on site.
• Clinical site. You plan the treatment and control room at our Ostbahnhof site for the first patient irradiation.
• Focal spot monitoring. You develop the monitoring of position, size, and shape of the electron beam focal spot on the target, necessary for safe microbeam irradiations.
• Clinical workflow, dosimetry, and quality assurance: You decide on suitable patient positioning and imaging systems at the clinical site, including fixation devices, and program the image registration between x-ray imaging and treatment position.
• You develop motion mitigation measures for microbeam radiation therapy.
• You define requirements for clinical microbeam dosimetry (mainly radiochromic film dosimetry) and develop the workflow and technology for film analysis with an optical system and a moving stage.
• You develop clinical QA acceptance tests for microbeam dosimetry.
• You perform dosimetry and technical tests on the prototype, including preclinical experiments.

What we offer:

• A fascinating technology – a real moonshot in engineering, physics and health sciences – and real responsibility for radiation protection, dosimetry, and QA of the first clinical microbeam device.
• A team full of talented, down-to-earth physicists and engineers from all over the world. A workplace, where you can own your stuff and get things done. A workplace where everyone is passionate about making an impact on the future of cancer therapies.
• We provide clear career prospects, a dynamic, growing environment, the opportunity to actively shape things, and team events to celebrate our successes.
• Flexible working hours, hybrid work, 30 days’ vacation and an individual training budget.
• Working in one of the world’s most livable cities; we are easily reachable and have a vibrant location in the Werksviertel close to Ostbahnhof, plus our prototype lab in Garching.

Please send your CV and a short motivation letter to Hans Maria Heÿn: info@collimatehealth.com

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