Münster 2017 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 7: Instrumentation II
HK 7.2: Vortrag
Montag, 27. März 2017, 17:15–17:30, F 073
High spatial resolution in thermal neutron detection: from CASCADE to BASTARD — •Markus Köhli1,2, Martin Klein2, Tim Wagner1, Fabian P. Schmidt1, Jochen Kaminski1, Klaus Desch1, and Ulrich Schmidt2 — 1Physikalisches Institut, Universität Bonn, Nußallee 12, 53115 Bonn — 2Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg
By alerts on the future Helium supply critical to perspectives of the European Spallation Source the run on substitutional technologies started. Most of the solutions could be adapted from developments of particle physics and are comprised of one or more layers of Boron-10. The CASCADE detector, developed in Heidelberg for the purposes of Spin Echo spectroscopy, features high spatial and time resolution. The system is comprised of a stack of solid Boron-10 coated Gas Electron Multiplier (GEM) foils, which serve both as a neutron converter and as an amplifier for the primary ionization. This multi-layer setup increases the detection efficiency of a single entity while still allowing to precisely determine the time-of-flight. The Spin Echo spectrometers at the FRM II run such new generation systems. This talk will discuss the characteristics of the system explicitly on the basis of the CASCADE detector at RESEDA. Furthermore we open up the perspective to the novel neutron detection systems, which are now currently under development at the Physikalisches Insitut in Bonn using the actual state-of-the-art readout electronics.