ELECTROMAGNETIC PELLET INJECTOR USING A PULSE FORMING LINE

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$498,835.00
Award Year:
1991
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
11625
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Interscience Inc.
105 Jordan Road, Troy, NY, 12180
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
DR. JAMES T. WOO
PRESIDENT
() -
Research Institution:
n/a
Abstract
THE STEADY STATE OR LONG PULSE OPERATION OF TOKAMAK REACTORS REQUIRE FUELING OF THE HIGH TEMPERATURE PLASMA BY PELLET INJECTION. IMPROVED PERFORMANCE CAN BE REALIZED IF THE DENSITY PROFILE IS HIGHLY PEAKED IN THE CENTER. TO ACHIEVE SUCH PRECISE SHAPING OF THE DENSITY PROFILE, INJECTION VELOCITIES UP TO 10'S OF KM/SEC MAY BE REQUIRED FOR PELLETS OF A FEW MG IN MASS. PRESENT PELLET INJECTORS BASED ON ACCELERATION BY GAS PRESSURE OR MECHANICAL MEANS ARE CAPABLE OF ATTAINING VELOCITIES OF ONLY ABOUT 2 KM/SEC AND ARE NOT SCALABLE BECAUSE OF FUNDAMENTAL LIMITATIONS. THESE TECHNIQUES ALSO APPLY EXCESSIVE SHOCK TO THE PELLET WHICH CAN CAUSE IT TO FRACTURE. A CONCEPT TO CONTINUOUSLY ACCELERATE PELLETS SUPPORTED BY A SLUG OF HIGH TEMPERATURE SUPERCONDUCTING MATERIAL IN AN ACCELERATOR TUBE BY PROPAGATING A MAGNETIC WAVE IN AN INDUCTOR THAT IS PART OF APULSE FORMING LINE IS PROPOSED. WITH PRESENTLY AVAILABLE HTS MATERIAL, ACCELERATION IN THE 10(4) TO 10(5) G RANGE IS ATTAINABLE. THE G-FORCE IS CONSISTENT WITH THE FRACTURE STRENGTH OF SOLID HYDROGEN. BECAUSE THE ACCELERATION IS CONTINUOUS RATHER THAN AS AN IMPULSE, THE NECESSARY INJECTION VELOCITY CAN BE ATTAINED IN DISTANCES OF ABOUT 10 METERS. DEVELOPMENT OF A PRACTICAL DESIGN BASED ON THIS CONCEPT IS PROPOSED FOR THE PHASE I EFFORT.

* information listed above is at the time of submission.

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