Bonn 2020 – scientific programme
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T: Fachverband Teilchenphysik
T 87: Gaseous detectors II
T 87.7: Talk
Thursday, April 2, 2020, 18:00–18:15, L-3.016
Prototype of a Boron-based neutron Time Projection Chamber — •Divya Pal1, Klaus Desch1, Jochen Kaminski1, Markus Köhli1,2, and Michael Lupberger1 — 1Physikalisches Institut, Universität Bonn — 2Physikalisches Institut, Universität Heidelberg
Thermal neutrons have widespread applications ranging from tests of fundamental physics to neutron tomography, solid-state physics and medical physics. Therefore, the development of improved detectors for thermal neutrons is an important challenge.
Thermal neutrons are traditionally detected with Helium-3 filled proportional counters. Due to the supply shortage of He-3 leading to a rapid rise in its price, alternative detectors are sought. In Bonn, a prototype neutron detector BODELAIRE (Boron detector with light and ionization reconstruction) is being developed with the aim of providing high spatial and time resolution.
BODELAIRE works on the principle of a Time Projection Chamber (TPC) with a GridPix readout which will have Timepix3 as ASIC. The idea is to use Boron-10 as neutron converter, which is coated on the walls. One of the reaction products will yield a track in the gas volume, while the other reaction product will provide a trigger signal in a scintillator.
The current development status of the BODELAIRE detector will be presented.