Volume 95, Number 1, July 2011
|Number of page(s)||6|
|Published online||14 June 2011|
Production of ultracold neutrons from cryogenic 2H2, O2, and C2H4 converters
Paul Scherrer Institut (PSI) - CH-5232 Villigen PSI, Switzerland
2 Institute of Physics, Jagiellonian University - Cracow, Poland, EU
3 Institute of Physics, University of Zürich - Switzerland
4 Institut Laue-Langevin (ILL) - Grenoble, France, EU
5 North Carolina State University - Raleigh, NC, USA
6 Stefan Meyer Institut for subatomic Physics, Austrian Academy of Sciences - Vienna, Austria, EU
7 Indiana University - Bloomington, IN, USA
8 Joint Institute for Nuclear Research - Dubna, Russia
9 Los Alamos National Laboratory - Los Alamos, NM, USA
10 Technical University München - München, Germany, EU
Accepted: 11 May 2011
Ultracold neutrons (UCN) have been produced using the cold neutron (CN) beam FUNSPIN at SINQ on cryogenic oxygen (O2), tetradeuteromethane (C2H4), and deuterium (2H2) targets. The target cell (40 mm long, fiducial volume about 45 cm3) was operated between room temperature and 8 K and UCN were produced from gaseous, liquid and solid targets. UCN rates have been measured as a convolution of UCN production and transport out of the target and to the detector. At least within the accessible temperature range of this experiment, deuterium outperforms the other materials.
PACS: 28.20.-v – Neutron physics / 28.20.Cz – Neutron scattering / 29.25.Dz – Neutron sources
© EPLA, 2011
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