High Power Microwave Source Development

The requirements of this project have been to: (1) improve and expand the sources available in the facility for testing purposes, and (2) perform specific tasks under direction of DNA about the applications of HPM. In the previous program many such tasks were undertaken. In this project the HPM application was power beaming. The requirements of this program were met in the following way: (1) We demonstrated that a compact linear induction accelerator can drive HPM sources at repetition rates in excess of 100 HZ at peak microwave powers of a GW. This was done for the relativistic magnetron. Since the conclusion of this contract such specifications have also been demonstrated for the relativistic klystron under BMDO funding (2) We demonstrated an L band relativistic magnetron, the first of its kind. This device has been used both on our single pulse machines, CAMEL and CAMEL X, and the repetitive system CLIA. (3) We demonstrated that phase locking of sources together in large numbers is a feasible technology and showed the generation of multigigawatt S-band radiation in an array of relativistic magnetrons. jg Prepared in cooperation with New York Univ., NY.