Diamond Detectors for Uses in a Proton Therapy Beam

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Presentation transcript:

Diamond Detectors for Uses in a Proton Therapy Beam Holly Johnson, Anna Zaniewski, Robert Nemanich, Jason Holmes, Ricardo Alarcon

What is Proton Beam Therapy? An idealized graph of a Bragg Peak; this is how protons release their energy. A “pencil beam” diagram; this shows how a Bragg peak would be used to treat a brain tumor. Particle Therapy Cancer Research Institute: Introduction, Oxford Martin School, https://www.ptcri.ox.ac.uk/research/introduction.shtml. Accessed 28 Mar. 2018.

Detectors and how they work Semi-conductors Electron-hole pairs Metal electrodes Connected to a circuit

Why Diamond?

Fabrication and Cleaning CVD – Chemical Vapor Deposition Not naturally-occurring or mined Piranha Ozone Oxygen Plasma

Metal Deposition Titanium, Platinum, Gold sandwich Complete backside Gold does not oxidize Complete backside Partial frontside

Results Van Engelhoven, Trevor. Diamond Detector Fabrication for Proton Beam Therapy. Senior thesis. Arizona State University, 2017.

Future Steps

Acknowledgements I would like to acknowledge Anna Zaniewski for mentoring me both professionally and personally. Jason Holmes has been instrumental in this research and I would like to acknowledge his work as well as the graphs he created in this presentation. I would also like to acknowledge Robert Nemanich, Ricardo Alarcon, Manpuneet Benipal, and Trevor van Engelhoven for helpful discussion. I also acknowledge Mayo Clinic and the ASU/NASA Space Grant program. Thank you.

Questions?