Inductive adder for radiographic applications

摘要

For some problems of interest, it is desirable to produce high energy x-rays ((ge) 800 kV), but to do so using a remote tube head. TITAN has met this need by developing an inductive adder. To use this device, a suitable HP pulser, such as the model 43734A, is operated in a dual remote tube head mode. However, both high voltage output cables are inserted into TITANs inductive adder which effectively sums the two voltage pulses. This higher voltage is then delivered to an appropriate x-ray tube such as the 1 MV 5081-9551 tube. Consider the 450 kV pulser operated in the dual remote Tube head configuration. In this mode both tubes are fired simultaneously by the same pulser, thereby providing the capability for obtaining orthogonal radiographs of rapidly moving objects, at the expense of reduced radiation dose (and penetrating power) from each tube. If it were possible to construct a device that could add the voltage pulses provided to the two separate tube heads as illustrated in Figure 2, then substantially higher penetrating power and x-ray doses could be provided in a remote tube head configuration. The development of such a technique would represent a significant new capability and could provide an important product improvement option for existing BP units already in field use. TITAN Technologies/Spectron Division has successfully developed and tested this inductive adder concept.