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UCNb Apparatus

The UCNb apparatus is a dual purpose instrument, serving as a beta calorimeter and a cold neutron storage cell. The instrument was created to measure the Fierz interference term of neutron beta decay. It has been used in conjunction with other Ultra Cold Neutron experiments, such as UCNA, which records angular correlation measurements in neutron beta decay.


The UCNb beta calorimeter. (www.lansce.lanl.gov)
LA-UR-16-26984