EPJ Web of Conferences (Jan 2016)

A Compton camera prototype for prompt gamma medical imaging

  • Thirolf P.G.,
  • Aldawood S.,
  • Böhmer M.,
  • Bortfeldt J.,
  • Castelhano I.,
  • Dedes G.,
  • Fiedler F.,
  • Gernhäuser R.,
  • Golnik C.,
  • Helmbrecht S.,
  • Hueso-González F.,
  • Kolff H. v.d.,
  • Kormoll T.,
  • Lang C.,
  • Liprandi S.,
  • Lutter R.,
  • Marinšek T.,
  • Maier L.,
  • Pausch G.,
  • Petzoldt J.,
  • Römer K.,
  • Schaart D.,
  • Parodi K.

DOI
https://doi.org/10.1051/epjconf/201611705005
Journal volume & issue
Vol. 117
p. 05005

Abstract

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Compton camera prototype for a position-sensitive detection of prompt γ rays from proton-induced nuclear reactions is being developed in Garching. The detector system allows to track the Comptonscattered electrons. The camera consists of a monolithic LaBr3:Ce scintillation absorber crystal, read out by a multi-anode PMT, preceded by a stacked array of 6 double-sided silicon strip detectors acting as scatterers. The LaBr3:Ce crystal has been characterized with radioactive sources. Online commissioning measurements were performed with a pulsed deuteron beam at the Garching Tandem accelerator and with a clinical proton beam at the OncoRay facility in Dresden. The determination of the interaction point of the photons in the monolithic crystal was investigated.