Scattering of ultra cold neutrons on nano-size bubbles

Inelastic scattering of ultra cold neutrons on bubbles with the size of nanometers is considered. It is shown that neutron-bubble cross-section is large and sensitive to different vibration modes of bubbles. This process could be used for the study of dynamics of nano-size bubbles, and for new methods of ultra cold neutron production if appropriately sized bubbles with sufficient density can be created.