Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 68: Detector Systems 2

T 68.1: Vortrag

Mittwoch, 23. März 2022, 16:15–16:30, T-H27

Design and construction of a neutron imaging detector based on a neutron sensitive MCP on Timepix3 ASICs — •Saime Gürbüz¹, Markus Gruber¹, Jochen Kaminski¹, Markus Köhli², Michael Lupberger¹, Divya Pal¹, Laura Rodríguez Gómez¹, and Klaus Desch¹ — ¹Physikalisches Institut, Rheinsiche Friedrich-Wilhlems-Universität Bonn, Bonn — ²Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg

The non-invasive method of neutron imaging has applications from medicine to engineering. With its unique capabilities, we can image elements that can not be distinguished via X-rays.

At the University of Bonn, we have been developing neutron detectors with different configurations and specifications. One of the neutron imaging detectors that has been studied is based on neutron sensitive Microchannel plate (nMCP) in combination with a Timepix3 ASIC. Previous studies show that neutron sensitive ¹⁰B and Gd enriched MCPs have up to 10 µm spatial resolution and neutron detection efficiency of up to 70%. The readout will be achieved using four Timepix3 ASICs with 55 µm pixels covering (28 x 28) mm² active area. The readout has a timing resolution of up to 1.5 ns.

By combining the efficiency of the MCP with the good time and spatial resolution of Timepix3, we aim to achieve excellent instrument performance in both domains. Such a detector can be used for many neutron imaging applications such as neutron tomography or time-of-flight imaging. In this talk, the current status as well as the principles of the detector will be presented.