RUBY CRYSTAL CHLOROPHYLL FLUOROMETER FOR MEASUREMENTS OF PHOTOSYNTHESIS RATES

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$49,981.00
Award Year:
1988
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
6811
Agency Tracking Number:
6811
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
45 Manning Rd, Billerica, MA, 01821
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DR PAUL KEBABIAN
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THE PURPOSE OF THIS PROPOSAL IS TO DESIGN, CONSTRUCT AND TEST A LABORATORY VERSION OF A PASSIVE CHLOROPHYLL FLUORESCENCE SENSOR SUITABLE FOR MONITORING LARGE AREAS OF VEGETATION (> 1 M2). THE LINE DISCRIMINATOR METHOD WE PROPOSE EXPLOITS A COINCIDENCE BETWEEN AN ABSORPTION LINE OFATMOSPHERIC OXYGEN AND THE R1 LINE OF A COOLED RUBY CRYSTAL,BOTH OF WHICH LIE NEAR THE PEAK OF THE CHLOROPHYLL FLUORESCENCE BAND. THE INSTRUMENT'S PERFORMANCE REGARDING SENSITIVITY AND FREEDOM FROM INTERFERENCE WILL BE EVALUATED QUANTITATIVELY. IT'S SUITABILITY FOR MAKING MEASUREMENTS OFPHOTOSYNTHESIS RATES WILL BE DETERMINED IN SMALL-SCALE (SINGLE LEAF) COMPARISON EXPERIMENTS FOR WHICH PROVEN FLUOROMETRIC INSTRUMENTATION AND PROCEDURES EXIST. THE RESULTS OF THE PHASE I EFFORT WILL RESOLVE CRITICAL DESIGN QUESTIONS AND PERMIT DEVELOPMENT OF A FIELD-READY PROTOTYPE FLUOROMETER IN PHASE II.

* information listed above is at the time of submission.

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