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DYNODE MATERIAL STUDIES FOR A NOVEL TWO DIMENSIONAL ELECTRON MULTIPLIER

Award Information

Agency:
Department of Energy 		Branch:
N/A 		Award ID:
27315 		Program Year/Program:
1994 / SBIR
Agency Tracking Number:
27315 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Xia, Llc
31057 Genstar Rd Hayward, CA 94544-7831
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1994
Title: DYNODE MATERIAL STUDIES FOR A NOVEL TWO DIMENSIONAL ELECTRON MULTIPLIER
Agency: DOE
Contract: N/A
Award Amount: $75,000.00
 

Abstract:

THE PHOTOMULTIPLIER TUBE (PMT). CONSISTING OF A PHOTOCATHODE AND A DYNODE BASED ELECTRON MULTIPLIER (EM), IS AN IMPORTANT ELECTRO-OPTIC DEVICE IN A VARIETY OF RADIATION MEASUREMENTS. IT IS A VERSATILE AND SENSITIVE DETECTOR WITH LOW NOISE AND FAST RESPONSE TIME. THE EM DYNODE STRUCTURES, HOWEVER, PRECLUDE FINE GRAIN, TWO-DIMENSIONAL (2-D) POSITION SENSITIVITY USING CONVENTIONAL DESIGNS. MESH DYNODES HAVE BEEN DEVELOPED TO ADDRESS THIS ISSUE BUT, DUE TO LATERAL SPREADING OF THE ELECTRON AVALANCHE BETWEEN STAGES, ARE STILL TYPICALLY LIMITED TO 1-2 MM IN POSITION RESOLUTION. THIS PROJECT PROPOSES A NOVEL EM DESIGN THAT SHOULD ACHIEVE RESOLUTIONS OF 100 UM OR LESS WHILE PRESERVING THE BENEFITS OF THE CLASSICAL DYNODE STRUCTURE. OTHER BENEFITS INCLUDE: COUNT RATES UP TO 10(7)/SEC PER (100UM)(2) PIXEL, IMPROVED TIMING RESOLUTION, ESSENTIAL GAIN INDEPENDENCE OF AXIAL MAGNETIC FIELD, AND THE POSSIBILITY OF ACTIVE AREAS UP TO 20 CM IN DIAMETER. PHASE I WILL FOCUS ON DYNODE MATERIAL IDENTIFICATION AND SELECTRION, WHICH IS THE KEY ELEMENT IN THE NEW GEOMETRY. SUCCESS IN THIS PROJECT WILL PROVIDE THE NECESSARY BASIS FOR DEVELOPING A 2-D ELECTRON MULTIPLYING STRUCTURE THAT WOULD HAVE A WIDE RANGE OF INSTRUMENTATION APPLICATIONS.

Principal Investigator:

Dr Yuan Kong
4159039980

Business Contact:

Small Business Information at Submission:

X-ray Instrumentation
2513 Charleston Rd Suite 207 Mountain View, CA 94043

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