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Novel, Laser-Based Probe for Measuring Neutral Densities in Tokamak Plasmas

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
69170
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
75424S04-I
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
HY-Tech Research Corp.
104 Centre Court Radford, VA 24141 5123
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2004
Title: Novel, Laser-Based Probe for Measuring Neutral Densities in Tokamak Plasmas
Agency: DOE
Contract: DE-FG02-04ER83974
Award Amount: $99,971.00
 

Abstract:

75424-Neutral species play important roles in many aspects of the operation of tokamak fusion reactors, including divertor operation, particle recycling, and edge turbulence effects. Diagnostics are required to quantitatively determine the state of neutral species, including their densities, temperatures, and directed velocities. However, current diagnostics are difficult to absolutely calibrate and suffer from the lack of spatial resolution. This project will develop a resonant, heterodyne interferometer to measure chordal, ground state densities of various neutral transitions including H(, D(, and T(. In Phase I, the interferometer will be designed, fabricated, and tested with in-house plasma sources. The critical issues are to demonstrate device operation with a tunable laser source, to optimize immunity to environmental noise (i.e., vibrational effects), and to demonstrate a capability to make meaningful measurements in plasmas akin to tokamak plasmas. In Phase II, the instrument will be installed and operated on the Alcator Cmod tokamak. Commercial Applications and Other Benefits as described by the awardee: In addition to the fusion energy application, the resonant interferometer should be robust enough for an industrial setting and would be an ideal sensor to monitor and control the plasma deposition of metal/diamond-like-carbon coatings, used to reduce friction, reduce wear, extend service life and improve the reliability of automotive components.

Principal Investigator:

Robert C. Hazelton
Dr.
5406394019
bhazelton@hytechresearch.com

Business Contact:

Robert C. Hazelton
Dr.
5406394019
bhazelton@hytechresearch.com
Small Business Information at Submission:

Hy-tech Research Corporation
104 Centre Court Radford Industrial Center Radford, VA 24141

EIN/Tax ID: 541218959
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No