Power J G, Gai W, Schoessow P
High Energy Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, U SA.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Nov;60(5 Pt B):6061-7. doi: 10.1103/physreve.60.6061.
We discuss wakefield excitation and propagation in dielectric structures, particularly concentrating on the case of multiple drive beam excitation in multimoded structures. We emphasize calculations of the energy loss of the drive beam train, the amplitude of the wakefield, and the relationship between power flow and stored energy in the dielectric wakefield device. We show that for a collinear multimode structure the amplitude of the wakefield generated by a bunch train is less than or equal to the wakefield generated by a single bunch of the same total charge. Furthermore, the transformer ratio R is shown to be always less than 2, even in the multiple drive beam case.
我们讨论了尾场在介质结构中的激发和传播，特别关注多模结构中多驱动束激发的情况。我们着重计算了驱动束流的能量损失、尾场的幅度，以及介质尾场装置中功率流与存储能量之间的关系。我们表明，对于共线多模结构，束流串产生的尾场幅度小于或等于相同总电荷量的单个束团产生的尾场。此外，即使在多驱动束的情况下，变比R也总是小于2。
