Superconducting Low-Velocity Linac for the Argonne Positive-Ion Injector Shepard, K. W. ; Benaroya, R. ; Clifft, B. ; Markovich, P. K. ; Zinkann, G. P. Abstract Publication: 1989 IEEE Particle Accelerator Conference Pub Date: 1989 Bibcode: 1989pac..conf..974S