Ion-plasma gun for ion-milling machine
Patent
·
OSTI ID:862721
- Hinsdale, IL
An ion gun includes an elongated electrode with a hollow end portion closed by a perforated end plate. The end plate is positioned parallel to a perforated flat electrode of opposite electrical polarity. An insulated sleeve encompasses the elongated electrode and extends outwardly from the perforated end towards the flat electrode. The sleeve length is separated into two portions of different materials. The first is formed of a high-temperature material that extends over the hollow portion of the elongated electrode where the arc is initiated by a point source electrode. The second sleeve portion extending over the remainder of the elongated electrode is of a resilient material for enhanced seal-forming ability and retention of plasma gas. Perforations are arranged in the flat electrode in a mutually opposing triangular pattern to project a plasma beam having a generally flat current profile towards a target requiring precision milling.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Number(s):
- US 3995186
- OSTI ID:
- 862721
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ion-plasma gun for ion-milling machine
Apparatus and method for pressure burst testing of a vessel
Automatic drop-off device for perforating guns
Patent
·
Mon Nov 29 23:00:00 EST 1976
·
OSTI ID:7107702
Apparatus and method for pressure burst testing of a vessel
Patent
·
Mon Dec 26 23:00:00 EST 1988
·
OSTI ID:6330767
Automatic drop-off device for perforating guns
Patent
·
Tue Sep 20 00:00:00 EDT 1988
·
OSTI ID:6804578
Related Subjects
/313/219/
ability
arranged
beam
closed
current
electrical
electrode
elongated
elongated electrode
encompasses
enhanced
extending
extends
extends outward
extends outwardly
flat
formed
gas
gun
high-temperature
hollow
hollow portion
initiated
insulated
ion-milling
ion-plasma
length
machine
material
materials
milling
milling machine
mutually
opposing
opposite
opposite electrical
outwardly
parallel
pattern
perforated
perforations
plasma
plasma gas
plasma gun
plate
polarity
portion
portion extending
portions
positioned
positioned parallel
precision
profile
remainder
requiring
resilient
resilient material
retention
seal-forming
separated
sleeve
sleeve portion
source
target
temperature material
towards
triangular
ability
arranged
beam
closed
current
electrical
electrode
elongated
elongated electrode
encompasses
enhanced
extending
extends
extends outward
extends outwardly
flat
formed
gas
gun
high-temperature
hollow
hollow portion
initiated
insulated
ion-milling
ion-plasma
length
machine
material
materials
milling
milling machine
mutually
opposing
opposite
opposite electrical
outwardly
parallel
pattern
perforated
perforations
plasma
plasma gas
plasma gun
plate
polarity
portion
portion extending
portions
positioned
positioned parallel
precision
profile
remainder
requiring
resilient
resilient material
retention
seal-forming
separated
sleeve
sleeve portion
source
target
temperature material
towards
triangular