SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 97: Calorimeter / Detector Systems IV

T 97.5: Vortrag

Mittwoch, 22. März 2023, 18:30–18:45, WIL/C133

Simulation studies for tomography with fast neutrons and gammas with a multi-pixel detector — •Aenne Abel, Nina Höflich, and Oliver Pooth — III. Physikalisches Institut B, RWTH Aachen University

Combined neutron and gamma tomography enables a new, non-destructive imaging procedure showing further material properties than a common CT scan.

At the RWTH Aachen University a portable measuring setup for fast neutrons is developed, which uses an Americium Beryllium source and 16 stilbene crystals coupled to an SiPM for detection. The organic scintillator stilbene allows the simultaneous detection and separation of neutrons and gammas. The detector pixels are arranged in a 4 x 4 grid with a pixel size of 6.2 x 6.2 mm.

In this talk the simulation procedure of the experimental setup using GEANT4 along with methods to determine the quality of the tomographic images is presented.