Linear particle accelerator with seal structure between electrodes and insulators
Patent
·
OSTI ID:867169
- Golden Valley, MN
An electrostatic linear accelerator includes an electrode stack comprised of primary electrodes formed or Kovar and supported by annular glass insulators having the same thermal expansion rate as the electrodes. Each glass insulator is provided with a pair of fused-in Kovar ring inserts which are bonded to the electrodes. Each electrode is designed to define a concavo-convex particle trap so that secondary charged particles generated within the accelerated beam area cannot reach the inner surface of an insulator. Each insulator has a generated inner surface profile which is so configured that the electrical field at this surface contains no significant tangential component. A spark gap trigger assembly is provided, which energizes spark gaps protecting the electrodes affected by over voltage to prevent excessive energy dissipation in the electrode stack.
- Research Organization:
- SYSMED INC
- DOE Contract Number:
- AC02-85ER80283
- Assignee:
- Sysmed, Inc. (Eden Prairie, MN)
- Patent Number(s):
- US 4879518
- OSTI ID:
- 867169
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/315/313/
accelerated
accelerator
affected
annular
assembly
beam
bonded
charged
charged particle
charged particles
component
comprised
concavo-convex
configured
contains
define
designed
dissipation
electrical
electrical field
electrode
electrode stack
electrodes
electrodes formed
electrostatic
energizes
energy
excessive
expansion
field
formed
fused-in
gap
gaps
generated
glass
inner
inner surface
inserts
insulator
insulators
kovar
linear
linear accelerator
linear particle
pair
particle
particle accelera
particle accelerator
particle trap
particles
particles generated
prevent
prevent excess
prevent excessive
primary
profile
protecting
provided
rate
reach
seal
seal structure
secondary
secondary char
significant
spark
spark gap
spark gaps
stack
structure
supported
surface
surface profile
tangential
thermal
thermal expansion
trap
trigger
voltage
accelerated
accelerator
affected
annular
assembly
beam
bonded
charged
charged particle
charged particles
component
comprised
concavo-convex
configured
contains
define
designed
dissipation
electrical
electrical field
electrode
electrode stack
electrodes
electrodes formed
electrostatic
energizes
energy
excessive
expansion
field
formed
fused-in
gap
gaps
generated
glass
inner
inner surface
inserts
insulator
insulators
kovar
linear
linear accelerator
linear particle
pair
particle
particle accelera
particle accelerator
particle trap
particles
particles generated
prevent
prevent excess
prevent excessive
primary
profile
protecting
provided
rate
reach
seal
seal structure
secondary
secondary char
significant
spark
spark gap
spark gaps
stack
structure
supported
surface
surface profile
tangential
thermal
thermal expansion
trap
trigger
voltage