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RAPID LIGHT ELEMENT ANALYSIS WITH TRANSMISSION ELECTRON MICROSCOPY

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
14526
Program Year/Program:
1991 / SBIR
Agency Tracking Number:
14526
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Aracor
425 Lakeside Drive Sunnyvale, CA 94086 0470
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1991
Title: RAPID LIGHT ELEMENT ANALYSIS WITH TRANSMISSION ELECTRON MICROSCOPY
Agency: DOE
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

THIS PROJECT ATTEMPTS TO EXPERIMENTALLY DEMONSTRATE A RE-ENTRANT LIGHT ELEMENT X-RAY FLUORESCENCE ANALYZER FOR ANALYTICAL TRANSMISSION ELECTRON MICROSCOPY (TEM). THE ANALYZER RELIES ON ADVANCED X-RAY OPTICAL COMPONENTS TO COLLECT AND TRANSPORT CHARACTERISTIC RADIATION EMITTED FROM LIGHT ELEMENTS (WITH ATOMIC NUMBERS BELOW 10) DURING ELECTRON MICROSCOPY. CALCULATIONS SHOW THAT THIS X-RAY OPTICAL SYSTEM IS 50 TIMES MORE EFFICIENT THAN THE MOST ADVANCED WAVELENGTH DISPERSIVE SPECTROMETERS COMMERCIALLY AVAILABLE OR UNDER DEVELOPMENT. THE INCREASE IN EFFICIENCY IS MADE POSSIBLE BY THE RECENT DEVELOPMENT OF LARGE SOLID-ANGLE OPTICAL COMPONENTS THAT RELY ON X-RAY MULTILAYERCOATINGS TO TRANSPORT CHARACTERISTIC RADIATION AND REJECT UNWANTED BACKGROUND RADIATION. IN PHASE I OF THIS PROJECT, AN ANALYZER DEMONSTRATOR UNIT IS BEING CONSTRUCTED TO DETECTCHARACTERISTIC BORON RADIATION EMITTED DURING TEM EXAMINATION OF BORON-CONTAINING SAMPLES. AMONG THE LIGHT ELEMENTS, BORON PRESENTS THE GREATEST QUANTITATIVE ANALYSIS CHALLENGE BECAUSE OF ITS LOW FLUORESCENCE YIELD AND THE PRESENCE OF INTERFERING RADIATION. THE PHASE I EFFORT WILL INTEGRATE A TEM SAMPLE STAGE, A BORON COLLECTION OPTIC, AND A DETECTOR TO FORM A RE-ENTRANT ANALYZER. THIS UNIT WILL BEDEPLOYED IN A TEM TO EXPERIMENTALLY DEMONSTRATE THE ANTICIPATED EFFICIENCY IMPROVEMENTS AND CONSEQUENT REDUCTIONIN BORON ASSAY TIME. FOLLOWING A SUCCESSFUL PHASE I DEMONSTRATION, PHASE II AIMS TO DESIGN, FABRICATE, AND DEMONSTRATE A RE-ENTRANT FOUR "COLOR" ANALYZER PROTOTYPE THAT CAN SIMULTANEOUSLY ASSAY BORON, CARBON, NITROGEN, AND OXYGEN.

Principal Investigator:

Dr Jonathan A Kerner
Principal Investigator
0

Business Contact:


4087337780
Small Business Information at Submission:

Advanced Research And Applicat
425 Lakeside Dr Sunnyvale, CA 94086

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