RADIOCHROMIC LEUKO DYE DOSIMETRY SOLUTIONS RESEARCH ON THE CAUSE OF YELLOWING

Award Information
Agency:
Department of Defense
Amount:
$47,741.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
Army
Award Year:
1987
Phase:
Phase I
Agency Tracking Number:
6008
Solicitation Topic Code:
N/A
Small Business Information
Irt Corp
Po Box 85317, San Diego, CA, 92138
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 DR RICHARD LUKENS
 (619) 450-4343
Business Contact
Phone: () -
Research Institution
N/A
Abstract
SOME BATCHES OF RADIOCHROMIC LEUKO DYE SOLUTIONS UNDERGO YELLOWING IN THE BASENCE OF EXPOSURE TO RADIATION. WHILE IT IS POSSIBLE THAT AN IMPURITY IN THOSE BATCHES MAY BE RESPONSIBLE FOR THE PROBLEM, OTHER CAUSES OF THE REACTION ARE POSSIBLE. FOR EXAMPLE, AN IMPURITY COMMON TO ALL BATCHES MAY ORDINARILY BE CONTROLLED BY A STABILIZER THATIS ABSORBED BY SOME BATCHES OF CONTAINER MATERIAL. THEREFORE, WE PROPOSE AN EFFORT THAT, INSTEAD OF RELYING EXCLUSIVELY ON CHEMICAL ANALYSES, ALSO ADDRESSES IMPORTANT ENERGY-HANDLING MARKERS---FLUORESCENCE, PHOSPHORESCENCE, AND CHEMILUMINESCENCE--FROM THE SOLUTIONS, THEIR COMPONENTS, AND THEIR CONTAINERS. THIS APPROACH WILL PROVIDE GREAT SENSITIVITY FOR COMPOSITIONAL DIFFERENCES BETWEEN GOOD AND POOR LEUKO DYE SOLUTIONS, CHANGES IN COMPOSITION OF THE SOLUTIONS WHILE IN THEIR CONTAINERS, AND CHEMICAL REACTIONS ASSOCIATED WITH YELLOWING. ADDITIONA, CHEMICAL ANALYSIS, AS MAY BE NECESSARY, WILL BE GUIDED BY THE LUMINESCENCE WORK. THE WORK WILL PRODUCE A KNOWLEDGE OF THE CAUSE OF THE YELLOWING PROBLEM AND RECOMMENDATIONS FOR ITS SOLUTION.

* information listed above is at the time of submission.

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