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Title: Powerful glow discharge excilamp

Patent ·
OSTI ID:874370
 [1];  [1];  [1];  [1];  [2];  [3];  [2]
  1. Tomsk, RU
  2. Danville, CA
  3. Livermore, CA
+ Show Author Affiliations

A powerful glow discharge lamp comprising two coaxial tubes, the outer tube being optically transparent, with a cathode and anode placed at opposite ends of the tubes, the space between the tubes being filled with working gas. The electrodes are made as cylindrical tumblers placed in line to one other in such a way that one end of the cathode is inserted into the inner tube, one end of the anode coaxially covers the end of the outer tube, the inner tube penetrating and extending through the anode. The increased electrodes' surface area increases glow discharge electron current and, correspondingly, average radiation power of discharge plasma. The inner tube contains at least one cooling liquid tube placed along the axis of the inner tube along the entire lamp length to provide cathode cooling. The anode has a circumferential heat extracting radiator which removes heat from the anode. The invention is related to lighting engineering and can be applied for realization of photostimulated processes under the action of powerful radiation in required spectral range.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
DOE Contract Number:
W-7405-ENG-48
Assignee:
The United States of America as represented by the United States Department (Washington, DC)
Patent Number(s):
US 6376972
OSTI ID:
874370
Country of Publication:
United States
Language:
English

References (7)

Cylindrical glow-discharge-pumped excimer lamps journal February 1998
Characteristics of an exciplex KrCl lamp pumped by a volume discharge journal April 1996
Coaxial excimer lamps pumped by barrier and longitudinal discharges journal May 1995
Efficient emission from an He—Xe—NF 3 mixture pumped by a glow discharge journal May 1996
Excilamp producing up to 130 W of output power and possibility of its applications journal June 1997
A planar XeCl-exilamp pumped by a low-pressure glow discharge journal December 1997
Improvement of output parameters of glow discharge UV excilamps journal March 1999

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Related Subjects

powerful
glow
discharge
excilamp
lamp
comprising
coaxial
tubes
outer
tube
optically
transparent
cathode
anode
placed
opposite
space
filled
gas
electrodes
cylindrical
tumblers
line
inserted
inner
coaxially
covers
penetrating
extending
increased
surface
increases
electron
current
correspondingly
average
radiation
power
plasma
contains
cooling
liquid
axis
entire
length
provide
circumferential
heat
extracting
radiator
removes
related
lighting
engineering
applied
realization
photostimulated
processes
action
required
spectral
range
glow discharge
discharge plasma
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