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HK: Fachverband Physik der Hadronen und Kerne

HK 51: Instrumentation XII

HK 51.3: Vortrag

Donnerstag, 30. März 2017, 17:15–17:30, F 072

Upgrade of the TRIGA Mainz UCN D source — •Jan Kahlenberg¹, Marcus Beck¹, Christopher Geppert², Werner Heil¹, Jan Karch¹, Sergei Karpuk², Tobias Reich², Kim Ross¹, Christian Siemensen², Yuri Sobolev², and Norbert Trautmann² — ¹Institut für Physik, Johannes Gutenberg-Universität Mainz — ²Institut für Kernchemie, Johannes Gutenberg-Universität Mainz

The upgrade of the ultra-cold neutron (UCN) source at beamport D of TRIGA Mainz has been successfully performed. A ⁵⁸NiMo-coated nose has led to an UCN yield increase of factor 3.5. Consequently, a UCN density of 8.5 UCN/cm³ in a standardised volume of 32 l has been reached.

This talk presents the main results of the September and November 2016 beam times. The results convincingly prove the source’s high performance and its suitability for UCN measurements at TRIGA Mainz. Supported by the PRISMA cluster of excellence, the neutron lifetime experiment τSPECT will profit from the increased UCN yield.