Studies on Neutron Storage Wall Coatings for the PENeLOPE experiment

by Julia Nitschke (E18)

Thursday 29 Apr 2010, 08:00 → 09:00 Europe/Berlin

E18 Seminar room

The neutron lifetime helps to test the Standard Model of particle physics and plays an important role in primordial nucleosynthesis. PENeLOPE, a new storage experiment for ultracold neutrons, is being developed to measure the neutron lifetime with higher precision than it has been determined so far. In order to reduce losses through wall collisions a neutron reflecting surface can be installed at the trap walls. The neutron storage properties of two possible realizations were investigated at ILL: metal sheets and a PET foil, coated with diamond-like carbon. The experiment and results are presented.