Design of an 850-MHz klystrode

The klystrode is a compact, highly efficient microwave source which has been proposed for application in the neutral particle beam program. As part of the klystrode design effort, extensive use is being made of computational methods, including MAGIC, an electromagnetic particle-in-cell code. The authors describe several ongoing calculations on klystrode efficiency, in particular on the design of the input cavity circuit and the use of double buncher cavities to improve beam bunching.<>