Experimental Studies of a Tunable, Long Pulse, Raman, Free  Electron Maser
{'Code': '07010000', 'Directorate': {'LongName': 'Directorate For Engineering'}, 'Division': {'LongName': 'Div Of Electrical, Commun & Cyber Sys'}}
{'SignBlockName': 'Lawrence S. Goldberg'}
A working demonstration of a tunable, long pulse, high frequency                (raman), free electron maser was presented.  Existing microwave tubes           create coherent power at excellent efficiencies and are indispensable           instruments of present uses of the microwave frequency band.  The free          electron laser is under active research investigation because it offers         high efficiency, high power, and tunability even into the ultraviolet.          This project focuses on achieving results in the millimeter wave band           and concentrates on experimental verification of several possible               efficiency enhancement methods using lower frequencies for some                 experiments.
[{'FirstName': 'George', 'LastName': 'Bekefi', 'EmailAddress': None, 'StartDate': '05/15/1985', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}, {'FirstName': 'Benjamin', 'LastName': 'Lax', 'EmailAddress': None, 'StartDate': '05/15/1985', 'EndDate': None, 'RoleCode': 'Principal Investigator'}]
{'Name': 'Massachusetts Institute of Technology', 'CityName': 'Cambridge', 'ZipCode': '021394301', 'PhoneNumber': '6172531000', 'StreetAddress': '77 MASSACHUSETTS AVE', 'CountryName': 'United States', 'StateName': 'Massachusetts', 'StateCode': 'MA'}
{'Code': '1517', 'Text': 'ELECT, PHOTONICS, & MAG DEVICE'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1984&All=true', 'xml': '8413173.xml'}