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Our calculations suggest that experiments relating to disk heating, as well as beam deposition, focusing and transport can be performed within the context of current design proposals for accelerator test-facilities. Since the test-facilities have lower ion kinetic energy and beam pulse power as compared to reactor drivers, we achieve high-beam intensities at the focal spot by using short focal distance and properly designed beam optics. In this regard, the low beam emittance of suggested multi-beam designs(l, 2) are very useful. Preliminary results suggest that intensities close to 1014 W/cm2 are achievable. Given these intensities, deposition experiments with heating of disks to greater than a million degrees Kelvin (100 eV) are expected. We could also expect as much as 1–3 kA of incident ion current on these disks with beam intensities almost comparable to that of reactor targets. Thus, if any anomalous plasma effects on deposition emerge, the conditions should be available for testing some of them. We might also note that these deposition experiments have low ion kinetic energy per nucléon. About 4–5 MeV/nucleon is achievable if lighter ions such as sodium were used. But for lighter ions, plasma effects in deposition might be more severe because heavy-ion beams are more "stiff". [ABSTRACT FROM PUBLISHER]

Based on a "warm beam" model, a full 3-D electrostatic linearized stability analysis is carried out within the context of Vlasov-Maxwell equations. The coupling of longitudinal and transverse motions is included as well as arbitrary wall impedance. Numerical results show that the warm beam is rather stable for zero wall impedance. A known artifact of the model introduces the only non-resistive instability due to two rotating streams. This type of instability stabilizes when rotation frequency vanishes. For general wall impedance, Landau damping quenches instabilities provided there is sufficient longitudinal energy spread. [ABSTRACT FROM PUBLISHER]