Description
Preliminary laboratory researches have shown, that a polycrystalline glass ceramic named Sitall could be a very suitable material for future UCN-storage experiments. This material provides high mechanical and temperature strength plus good electric isolation characteristics and an effective wall potential for UCN of V=125 neV.
Our aim was to prove the UCN storage characteristics of a Sitall glass-ceramic bottle produced from SRIOMT (Moscow, Russia). The cylindrical storage bottle was installed at the UCN-source C of the reactor TRIGA Mainz. After different cleaning processes, such as backing out and RF-discharge with helium, a storage time of 160(2) s was measured in a one-day experiment. The main UCN-losses arise from absorption and upscattering at the surface of the Sitall.
Primary author
Christian Düsing
