Gamma-insensitive optical sensor

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869194

Kruger, Hans W ^[1]

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1. Walnut Creek, CA

An ultra-violet/visible/infra-red gamma-insensitive gas avalanche focal plane array comprising a planar photocathode and a planar anode pad array separated by a gas-filled gap and across which is applied an electric potential. Electrons ejected from the photocathode are accelerated sufficiently between collisions with the gas molecules to ionize them, forming an electron avalanche. The gap acts like a proportional counter. The array of anode pad are mounted on the front of an anode plate and are connected to matching contact pads on the back of the anode via feed through wires. Connection of the anode to signal processing electronics is made from the contact pads using standard indium bump techniques, for example.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5294789
• OSTI ID: 869194
• Country of Publication: United States
• Language: English

Related Subjects

gamma-insensitive
optical
sensor
ultra-violet
visible
infra-red
gas
avalanche
focal
plane
array
comprising
planar
photocathode
anode
pad
separated
gas-filled
gap
applied
electric
potential
electrons
ejected
accelerated
sufficiently
collisions
molecules
ionize
forming
electron
proportional
counter
mounted
front
plate
connected
matching
contact
pads
via
feed
wires
connection
signal
processing
electronics
standard
indium
bump
techniques
example
plane array
processing electronics
proportional counter
gas molecules
signal processing
electric potential
focal plane
electron avalanche
optical sensor
sensitive optical
gas-filled gap
signal process
gamma-insensitive optical
gamma-insensitive gas
gas avalanche
planar anode
avalanche focal
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