Superconducting accelerator cavity with a heat affected zone having a higher RRR
Patent
·
OSTI ID:873129
- Grafton, VA
- Hayes, VA
An improved method for welding accelerator cavities without the need for time consuming and expensive faying surface treatments comprising electron beam welding such cavities in a vacuum welding chamber within a vacuum envelope and using the following welding parameters: a beam voltage of between about 45 KV and 55 KV; a beam current between about 38 ma and 47 ma; a weld speed of about 15 cm/min; and a sharp focus and a rhombic raster of between about 9 KHz and 10 Khz. A welded cavity made according to the method of the present invention is also described.
- Research Organization:
- SOUTHEASTERN UNIV RESCH ASSN
- DOE Contract Number:
- AC05-84ER40150
- Assignee:
- Southeastern Universities Research Assn. ()
- Patent Number(s):
- US 6097153
- OSTI ID:
- 873129
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/315/219/333/505/
10
15
38
45
47
55
accelerator
accelerator cavity
according
affected
affected zone
beam
beam current
beam welding
cavities
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chamber
cm
comprising
consuming
current
described
electron
electron beam
envelope
expensive
faying
focus
following
heat
heat affected
improved
improved method
khz
kv
method
parameters
raster
rhombic
rrr
sharp
sharp focus
speed
superconducting
surface
surface treatment
surface treatments
time
time consuming
treatments
vacuum
voltage
weld
weld speed
welded
welding
zone
10
15
38
45
47
55
accelerator
accelerator cavity
according
affected
affected zone
beam
beam current
beam welding
cavities
cavity
chamber
cm
comprising
consuming
current
described
electron
electron beam
envelope
expensive
faying
focus
following
heat
heat affected
improved
improved method
khz
kv
method
parameters
raster
rhombic
rrr
sharp
sharp focus
speed
superconducting
surface
surface treatment
surface treatments
time
time consuming
treatments
vacuum
voltage
weld
weld speed
welded
welding
zone