XUV IMAGE DETECTOR ARRAY

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 17012
Amount: $49,741.00
Phase: Phase I
Program: SBIR
Awards Year: 1991
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Princeton Scientific Instr Inc
7 Deer Park Dr, Monmouth Junction, NJ, 08852
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
IN MOST CURRENT XUV IMAGE SENSORS, THE PHOTOCATHODE IS EVAPORATED ON THE SURFACE OF A MICROCHANNEL PLATE. HOWEVER,THE DETECTIVE QUANTUM EFFICIENCY OF THESE DEVICES IS DEGRADED BY THE MICROCHANNEL PLATE SURFACE AND THE ATTENDANTPHOTOELECTRON BALLISTIC PATH IN REACHING THE CHANNELS. IN COMPARISON WITH PHOTOCATHODES ON SMOOTH METAL SUBSTRATES. SUCH PHOTOCATHODES IN WINDOWLESS IMAGE TUBES HAVE BEEN SUCCESSFULLY USED IN XUV ASTRONOMICAL OBSERVATIONS, BUT THEIR ADOPTION HAS BEEN RESTRAINED BY THE SIZE AND WEIGHT OF THE ELECTROMAGNETIC ASSEMBLY EMPLOYED TO ACCELERATE AND FOCUS THE PHOTOELECTRONS ONTO THE ANODE. THE PROPOSED PHASEI EFFORT IS TO DESIGN A DETECTOR ARRAY SUITABLE FOR USE IN SPACEBORNE XUV SENSORS. IN PHASE II, A PROTOTYPE WILL BE BUILT AND EVALUATED. THESE XUV DETECTORS WOULD FIND APPLICATION IN ACADEMIC AND INDUSTRIAL RESEARCH INSTRUMENTS. IN MOST CURRENT XUV IMAGE SENSORS, THE PHOTOCATHODE IS EVAPORATED ON THE SURFACE OF A MICROCHANNEL PLATE. HOWEVER,THE DETECTIVE QUANTUM EFFICIENCY OF THESE DEVICES IS DEGRADED BY THE MICROCHANNEL PLATE SURFACE AND THE ATTENDANTPHOTOELECTRON BALLISTIC PATH IN REACHING THE CHANNELS. IN COMPARISON WITH PHOTOCATHODES ON SMOOTH METAL SUBSTRATES. SUCH PHOTOCATHODES IN WINDOWLESS IMAGE TUBES HAVE BEEN SUCCESSFULLY USED IN XUV ASTRONOMICAL OBSERVATIONS, BUT THEIR ADOPTION HAS BEEN RESTRAINED BY THE SIZE AND WEIGHT OF THE ELECTROMAGNETIC ASSEMBLY EMPLOYED TO ACCELERATE AND FOCUS THE PHOTOELECTRONS ONTO THE ANODE. THE PROPOSED PHASEI EFFORT IS TO DESIGN A DETECTOR ARRAY SUITABLE FOR USE IN SPACEBORNE XUV SENSORS. IN PHASE II, A PROTOTYPE WILL BE BUILT AND EVALUATED. THESE XUV DETECTORS WOULD FIND APPLICATION IN ACADEMIC AND INDUSTRIAL RESEARCH INSTRUMENTS.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government