Darmstadt 2008 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 37: Instrumentation und Anwendungen I

HK 37.4: Talk

Thursday, March 13, 2008, 17:30–17:45, 2C

Production of ultra-cold neutrons with a solid deuterium converter at a test facility at the TRIGA reactor in Mainz — •Andreas Frei¹, Igor Altarev¹, Erwin Gutsmiedl¹, Gabriele Hampel², F. Joachim Hartmann¹, Werner Heil³, Jens Volker Kratz², Thorsten Lauer², Stephan Paul¹, Youri Pokotilovski⁴, Youri Sobolev³, Markus Urban¹, and Norbert Wiehl² — ¹Physik Department E18, Technische Universität München — ²Institut für Kernchemie, Universität Mainz — ³Institut für Physik, Universität Mainz — ⁴Joint Institute for Nuclear Research, Dubna, Russia

A test facility for the production of ultra-cold neutrons (UCN) with a solid D₂-converter (volume ≤200 cm³) at the TRIGA reactor in Mainz has been taken into operation. This facility serves as a prototype for a strong UCN source at the FRM-II, as well as an apparatus, where different parameters involved with the production of UCN, their transport and storage can be investigated. During the last year many of these parameters concerning UCN production have been measured. The results of these measurements are in good conformance with theoretical calculations and numerical simulations. This talk will give an overview of the experimental results of these measurements. This project was supported by the Maier-Leibnitz-Laboratorium (MLL) and the Cluster of Excellence Exc153 "Origin and Structure of the Universe".