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HK: Fachverband Hadronen und Kerne
HK 64: Nuclear Physics Applications
HK 64.1: Group Report
Wednesday, March 18, 2009, 16:30–17:00, H-ZO 100
Cubic boron nitride- a new material for ultracold neutron application — •Thorsten Lauer1, Yury Sobolev2, Yury Borisov3, Manfred Daum4, Nicolas du Fresne2, Leonard Göltl8, Gabriele Hampel1, Werner Heil2, Andreas Knecht4,5, Martin Keunecke6, Jens Volker Kratz1, Thomas Lang2, Michael Meister2, Christian Plonka Spehr1, Yuri Pokotylovski7, Peter Reichert1, Ullrich Schmidt8, Thomas Krist9, Norbert Wiehl1, and Johannes Zennere2 — 1Institut für Kernchemie, Universität Mainz — 2Institut für Physik, Universität Mainz — 3PNPI Gatchina, Russland — 4PSI, Paul Scherrer Institut, Villigen, Schweiz — 5Universität Zürich, Schweiz — 6Frauenhofer Institut IST, Braunschweig — 7JINR, Dubna, Russland — 8Physikalisches Institut, Universität Heidelberg — 9Hahn Meitner Institut, Berlin
For the first time, the Fermi potential of cubic boron nitride (cBN) was measured at the ultra cold neutron source at the TRIGA reactor, Mainz using the time of flight method (TOF). The investigated samples have a Fermi potential of about 300 neV. Because of its good dielectric characteristics, cubic boron nitride could be used as suitable coating for insulator in storage chambers of future EDM projects. This talk will present recent results and an outlook on further investigations.