Accession Number : ADA261117


Title :   Theoretical and Experimental Investigation of Electron Beam Acceleration and Sub-Millimeter Wave Generation


Descriptive Note : Final rept. 25 Jun 1991-24 Jun 1992


Corporate Author : CALIFORNIA UNIV LOS ANGELES DEPT OF ELECTRICAL ENGINEERING


Personal Author(s) : Luhmann, Jr , N C ; McDermott, D B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a261117.pdf


Report Date : Oct 1992


Pagination or Media Count : 76


Abstract : The overall objective of our research for ARO is to develop devices that have the potential for being compact generators of submillimeter-wave radiation. (1) The high-harmonic gyro-frequency multiplier, which is an efficient generator of high frequency rf, will be tested at the tenth-harmonic in our rebuilt test-stand. (2) High-power harmonic gyro-TWTs can be designed to operate in high order modes in large size waveguide by using the marginal stability design criterion. (3) Our high power, second-harmonic TE2 1 gyro-TWT, which is predicted to generate an order of magnitude higher power than state-of- the-art fundamental frequency gyrotrons, has been fully designed and construction is well underway. (4) The interaction strength in our high-harmonic CARM increases as the electron Larmor radius moves closer to the wall radius as the magnetic field is lowered towards a grazing intersection. (5) A high performance amplifier is predicted to result from our initial gyro-klystron experiment.... Submillimeter-wave radiation, Compact generators, Frequency multiplication, High-harmonic, Gyro-TWT, Stability.


Descriptors :   *ELECTRON BEAMS , *SUBMILLIMETER WAVES , *GYROTRONS , *FREQUENCY MULTIPLIERS , *HARMONIC GENERATORS , *ELECTRON ACCELERATORS , TEST AND EVALUATION , FREQUENCY , HIGH POWER , RADIATION , MAGNETIC FIELDS , STABILITY , HIGH FREQUENCY , KLYSTRONS , GRAZING , TEST STANDS , ELECTRON GUNS , AMPLIFIERS , THIRD HARMONIC GENERATION , INTERACTIONS , STATE OF THE ART , SECOND HARMONIC GENERATION , HARMONICS , WAVEGUIDES , ELECTRONS


Subject Categories : Electrical and Electronic Equipment
      Particle Accelerators


Distribution Statement : APPROVED FOR PUBLIC RELEASE