A Superconductive, Low Beta Single Gap Cavity for a High Intensity   Proton Linac
  A single gap, 352 MHz superconducting reentrant cavity for 5-100 MeV beams has been designed and it is presently under construction. This development is being done in the framework of a 30 mA proton linac project for nuclear waste transmutation. Mechanical, cryogenic and rf design characteristics of such cavities will be described. 
A. Facco, M. Pasini, V. Zviagintsev