Unstable systems and repeated measurements

In this part of the paper we treat two examples. In the first one the chamber structure is assumed only to be periodic andP(t) is an exponential. In the second example no specific assumption is made about the primary decay law and the measuring device is structured as an idealized spark chamber. This example contains results ofBeskow andNilsson as a special case.We follow the program formulated in the first part of this paper (referred hereafter as I]). In the introduction of I] we mentioned three examples; here we give two of them.