Alexander Saunders
(Los Alamos National Lab)
11/10/2010, 16:30
Advanced ultracold neutron sources
Oral
An ultra-cold neutron source has been constructed and is now operating at Los Alamos National Lab. This source, which is based on a solid deuterium converter driven by pulsed spallation-produced neutrons, provides UCN densities of 30 UCN/cc with negligible source-related backgrounds. The source is able to simultaneously provide UCNs to two experiment locations; the first is now occupied the...
Dr
Thorsten Lauer
(University of Mainz)
11/10/2010, 16:45
Advanced ultracold neutron sources
Oral
Research in fundamental physics with the free neutron is one of the key tools for testing the Standard Model at low energies. Significant improvements of the experimental performance using ultracold neutrons (UCN) require reduction of both systematic and statistical errors. The development of new UCN sources based on the superthermal concept is therefore an important step for the success of...
Dr
Bertrand Blau
(PSI)
11/10/2010, 17:00
Oral
Commissioning of the new ultracold neutron (UCN) source at the Paul Scherrer Institut (PSI) has started. The design goal of this new generation high-intensity UCN source is to exceed the currently available ultracold neutron densities by a factor of ~100, thus making it very valuable for fundamental physics research like the search for a neutron electric dipole moment. The source will deliver...
Dr
Andreas Frei
(Physik Department E18 - Technische Universität München)
11/10/2010, 17:15
Advanced ultracold neutron sources
Oral
A new strong source for the production of ultra-cold neutrons (UCN) is currently built up at the FRM-II. It will be installed at the horizontal beam tube SR-6, with a solid hydrogen pre-moderator and a solid deuterium UCN-converter located approx. 60 cm away from the reactor fuel element. UCN are produced inside the solid deuterium via the superthermal principle of conversion of the pre-cooled...
Prof.
Hirohiko Shimizu
(KEK)
11/10/2010, 17:30
Advanced ultracold neutron sources
Oral
The application of the pulsed proton beam from the Japan Proton Accelerator Research Complex (J-PARC) to produce ultracold neutrons is proposed for the measurement of the electric dipole moment of neutrons. An active optics synchronized with the UCN time-of-flight is proposed to suppress the decrease of the spatial UCN density on transporting the instantaneousely dense UCNs into a remote...
Mr
Arcady Zakharov
(Petersburg Nuclear Physics Institute)
11/10/2010, 17:45
Advanced ultracold neutron sources
Oral
The WWR-M reactor of PNPI offers a unique opportunity to prepare a source for ultracold neutrons (UCN) in an environment of high neutron flux (about 3x10^12 n/cm2/s) but still acceptable radiation heat release (about 4x10^-3 W/g). It can be realized within the thermal column situated close to the reactor core. With its large diameter of 1 m, this channel allows to install a 15-cm-thick bismuth...
