NEUTRAL BEAM PROBE FOR POTENTIAL MEASUREMENT IN TANDEM MIRRORS

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$490,707.00
Award Year:
1985
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
1190
Agency Tracking Number:
1190
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
250 Jordan Rd #220, Troy, NY, 12180
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
James T. Woo
Principal Scientist
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
THE DEVELOPMENT OF THE TANDEM MIRROR CONCEPT FOR THE CONFINEMENT OF THERMONUCLEAR PLASMAS IS DEPENDENT ON BEING ABLE TO ESTABLISH AND MAINTAIN THE PROPER AXIAL AND RADIAL POTENTIAL PROFILES THROUGHOUT THE SYSTEM. MUCH OF THE PRESENT EXPERIMENTAL EFFORTS IN TANDEM MIRROR RESEARCH ARE DIRECTED TOWARDS SHAPING AND CONTROLLING THE POTENTIAL DISTRIBUTIONS. AT PRESENT, THERE IS NO DEMONSTRATED TECHNIQUE THAT CAN BE GENERALLY APPLIED TO MEASURE THE AMBIPOLAR POTENTIAL IN HOT PLASMAS CONFINED IN COMPLEX MAGNETIC FIELD CONFIGURATIONS. INTERSCIENCE, INC. HAS EVALUATED A NUMBER OF POSSIBLE TECHNIQUES AND PROPOSES TO UNDERTAKE THE DEVELOPMENT OF A NEUTRAL BEAM PROBE SYSTEM AS THE MOST PROMISING APPROACH FOR POTENTIAL MEASUREMENTS IN COMPLEX, NON-AXISYMMETRIC MAGNETIC FIELD CONFIGURATIONS. THE NEUTRAL BEAM PROBE IS BASED ON A VARIATION OF THE HEAVY ION BEAM PROBE THAT HAS BEEN EXTENSIVELY APPLIED FOR POTENTIAL MEASUREMENTS IN SIMPLE, AXISYMMETRIC SYSTEMS. THE PARTICLE TRAJECTORIES ASSOCIATED WITH THE NEUTRAL BEAM PROBE ARE RELATIVELY SIMPLE. IT IS THEREFORE, BETTER SUITED FOR APPLICATION IN COMPLEX FIELD CONFIGURATIONS AND IS CAPABLE OF GREATER RANGE AND SENSITIVITY THAN THE ION BEAM PROBE. IN ORDER TO DEMONSTRATE ITS FULL CAPABILITIES, WE PROPOSE TO DEVELOP SUCH A DIAGNOSTIC FOR THE PHAEDRUS TANDEM MIRROR EXPERIMENT. UNDER PHASE I OF THE SBIR PROGRAM, WE SHALL FORMULATE A SPECIFIC DESIGN BASED ON EXTENSIVE DESIGN CALCULATIONS TO DETERMINE THE RANGE, RESOLUTION AND SENSITIVITY THAT CAN BE REALIZED FROM THE SYSTEM. IF THE PERFORMANCE CAPABILITIES APPEARS ATTRACTIVE, THE DESIGN CAN BE UTILIZED DIRECTLY AS THE BASIS FOR CONSTRUCTION OF A DEMONSTRATION SYSTEM UNDER PHASE II.

* information listed above is at the time of submission.

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