Buffer for a gamma-insensitive optical sensor with gas and a buffer assembly

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869289

Kruger, Hans W ^[1]

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1. Walnut Creek, CA

A buffer assembly for a gamma-insensitive gas avalanche focal plane array operating in the ultra-violet/visible/infrared energy wavelengths and using a photocathode and an avalanche gas located in a gap between an anode and the photocathode. The buffer assembly functions to eliminate chemical compatibility between the gas composition and the materials of the photocathode. The buffer assembly in the described embodiment is composed of two sections, a first section constructed of glass honeycomb under vacuum and a second section defining a thin barrier film or membrane constructed, for example, of Al and Be, which is attached to and supported by the honeycomb. The honeycomb section, in turn, is supported by and adjacent to the photocathode.

• 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 5311010
• OSTI ID: 869289
• Country of Publication: United States
• Language: English

Related Subjects

buffer
gamma-insensitive
optical
sensor
gas
assembly
avalanche
focal
plane
array
operating
ultra-violet
visible
infrared
energy
wavelengths
photocathode
located
gap
anode
functions
eliminate
chemical
compatibility
composition
materials
described
embodiment
composed
sections
section
constructed
glass
honeycomb
vacuum
defining
barrier
film
membrane
example
attached
supported
adjacent
plane array
gas composition
infrared energy
focal plane
optical sensor
sensitive optical
buffer assembly
gamma-insensitive optical
gamma-insensitive gas
gas avalanche
avalanche focal
described embodiment
/250/313/