A FEASIBILITY STUDY FOR A 5-MW, 300-GHZ QUASI-OPTICAL GYROTRON

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 7031
Amount: $500,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1988
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
603 King St, Alexandria, VA, 22314
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Michael R Read
 (703) 548-6410
Business Contact
Phone: () -
Research Institution
N/A
Abstract
HIGH POWER, CW (CONTINUOUS WAVE) SOURCES AT FREQUENCIES NEAR 300 GHZ ARE NEEDED FOR ELECTRON CYCLOTRON HEATING IN ADVANCED MAGNETIC FUSION DEVICES SUCH AS THE CIT (COMPACT IGNITION TOKAMAK). RECENT DEVELOPMENTS IN GYROTRONS HAVE PUSHED THE STATE OF THE ART TO 100 KW CW AT 140 GHZ. ONE MEGAWATT AT 140 GHZ APPEARS FEASIBLE, BUT NEARTO THE LIMIT OF THE CURRENT FORM OF THE GYROTRON. THE QUASI-OPTICAL GYROTRON IS A NEW FORM OF GYROTRON IN WHICH THE STANDARD MICROWAVE CAVITY IS REPLACED BY A LARGE OPTICAL CAVITY. THE OVERALL CONFIGURATION OF THE DEVICE AND THE LARGE CAVITY ARE SUITABLE IN PRINCIPLE FOR PRODUCTION OF VERY LARGE POWERS. THE PROPOSED STUDY IS TO DETERMINE, THROUGH CALCULATION, THE FEASIBILITY OF A 5-MW CW, 300-GHZ QUASI-OPTICAL GYROTRON. EMPHASIS IS PLACED ON THE STUDY OF ELECTRON BEAM GENERATION AND PROPAGATION AND THE OPTICAL CAVITY, WITH THE GOAL OF REALIZING A PRELIMINARY DESIGN WITH AN EFFICIENCY OF OVER 30%. (THEORY PREDICTS EFFICIENCIES AS HIGH AS 45%.) CONSIDERATION OF NONCIRCULAR GEOMETRIES FOR BOTH THE ELECTRON BEAM AND RESONATOR MIRRORS IS CENTRAL TO THE STUDY.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government