Bonn 2001 – scientific programme

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T: Teilchenphysik

T 505: CP-Verletzung

T 505.2: Talk

Wednesday, March 28, 2001, 16:30–16:45, HS IV

An Ultracold Neutron Facility at PSI — •Manfred Daum¹, Anatoli Serebrov², Reinhold Henneck¹, Klaus Kirch¹, Francis Atchison¹, Gerd Heidenreich¹, Urs Rohrer¹, Alexej Fomin², Victor Mityukhlyaev², Igor Potapov², Valeri Varlamov², and Arcady Zakharov² — ¹PSI, Paul-Scherrer-Institut, Villigen, Switzerland — ²PNPI, Petersburg Nuclear Physics Institut, Gatchina, Russia

At PSI, we build a new type of ultracold neutron source, based on the spallation process. The essential elements of the new source are a pulsed proton beam with a high intensity (I_p > 2 mA) and a very low duty cycle, a heavy element spallation target and a moderator consisting of solid deuterium kept at a temperature of about 8 K. Recent experimental studies of the production of ultracold neutrons in solid deuterium open prospects for densities of more than 1000 ultracold neutrons per cm³. As a first experiment at the new facility, we intend to measure the electric dipole moment of the neutron with a sensitivity of less than 10⁻²⁷ ecm, an improvement by more than one order of magnitude.