From HomoExcelsior

Blumlein generators are flexible transmission line based devices that are suitable for low-power applications, such as high voltage testing of small-capacitive loads, trigger generators with low jitter and x-ray generator power supplies. They can be operated at pulse repetition frequencies up to 100s of Hz, and are compact and robust. Blumlein generators produce a rectangular flat-top output voltage pulse with rise and fall times around 10-15ns. The output impedance is well defined and depends upon the transmission line configuration. These devices offer a degree of flexibility withinc their specifications, such as the pulse duration, input/output impedance and voltage gain. These can be altered to suit requirements. Variations of the Blumlein device include a double pulse system that can generate two successive pulses with down to 1 microsecond separation, and a hybrid device that combines the high voltage pulse from the Blumlein with a following high current pulse from a capacitor bank.

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