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HK: Fachverband Physik der Hadronen und Kerne

HK 12: Instrumentation 4

HK 12.4: Vortrag

Montag, 23. März 2015, 18:00–18:15, M/HS1

Development of a Compton Camera for online ion beam range verification via prompt γ detectio — •S. Aldawood^{1, 2}, S. Liprandi¹, T. Marinsek¹, J. Bortfeldt¹, L. Maier³, C. Lang¹, H. van der Kolff^{1, 4}, I. Castelhano^{1, 5}, R. Lutter¹, G. Dedes¹, R Gernhäuser³, D. R. Schaart⁴, K. Parodi¹, and P. G. Thirolf¹ — ¹LMU Munich, Garching, Germany — ²King Saud University, Riyadh, Saudi Arabia — ³TU Munich, Garching, Germany — ⁴TU Delft, The Netherlands — ⁵University of Lisbon, Lisbon, Portugal

Precise and preferably online ion beam range verification is a mandatory prerequisite to fully exploit the advantages of hadron therapy in cancer treatment. An imaging system is being developed in Garching aiming to detect promptγ rays induced by nuclear reactions between the ion beam and biological tissue. The Compton camera prototype consists of a stack of six customized double-sided Si-strip detectors (DSSSD, 50×50 mm², 0.5 mm thick, 128 strips/side) acting as scatterer, while the absorber is formed by a monolithic LaBr₃:Ce scintillator crystal (50×50×30 mm³) read out by a position-sensitive multi-anode photomultiplier (Hamamatsu H9500). The on going characterization of the Compton camera properties and its individual components both offline in the laboratory as well as online using proton beam will be presented.

*This work is supported by the DFG Cluster of Excellence MAP (Munich-Centre for Advanced Photonics)