The low power checkout of the Repetitive High Energy Pulsed rcr (RHEPP) pulse forming line (PFL) and linear induction age adder (LIVA) is complete. The accelerator has four LIVA ties driven via coaxial cables from the PFL that utilizes magnetic ching to provide a 250-kV, 60-11s output pulse. The PFL is titively charged by a ten stage Marx generator to operate from le shot to five Hz. Results from these tests of the initial four c RHEPP accelerator are presented and compared with design Ilations. Data from a resistive cavity load and from preliminary tron diode experiments are included. While core temperatures iin low during five Hz operation, they are monitored and pared to extrapolated predictions from the design modeling. ormance of the Metglas [ l ] magnetic switches and blocking s, the voltage addition in the four LIVA cavities, and system iencies are discussed. Sources of discrepancies from the inal design models are identified, and improved models that Nunt for the discrepancies are presented. Improved performance ntial bascd on these models is discussed. Plans for future testing le 1-MV system up to 120 kW at 120 Hz and for the full system ten LfVA cavities are presented.

Several potential applications such as medical waste treatment, chemical waste treatment, food treatment, and flue gas cleanup have been identified l our high average powel electroil beam sysleins. The technology lor such a system is being developed in the RHEPP (Repetitive High Energy Pulsed Power) project. The RHEPP module consists of a multistage magnetic pulse compressor driving a linear induction voltage adder with an e-beam diode load. It has been designed to operate continuously, delivering 350 kW of average power to the diode in 60-ns FWHM. 2.5-MV. 2.9-kJ pulses. The module is presently under construction with the first phase scheduled for completion in the summer of 1992. In the first phase, four of ten adder stages are being built so that testing can begin with a 1-MV, 160-kW diode with the balance of the power from the compressor diverted to a resistive load. A description of the system and test results from the initial stages of the compressor will be presented.

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