skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Linear particle accelerator with seal structure between electrodes and insulators

Abstract

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.

Inventors:
 [1]
  1. (Golden Valley, MN)
Publication Date:
Research Org.:
SYSMED INC
OSTI Identifier:
867169
Patent Number(s):
US 4879518
Assignee:
Sysmed, Inc. (Eden Prairie, MN) OSTI
DOE Contract Number:  
AC02-85ER80283
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
linear; particle; accelerator; seal; structure; electrodes; insulators; electrostatic; electrode; stack; comprised; primary; formed; kovar; supported; annular; glass; thermal; expansion; rate; insulator; provided; pair; fused-in; inserts; bonded; designed; define; concavo-convex; trap; secondary; charged; particles; generated; accelerated; beam; reach; inner; surface; profile; configured; electrical; field; contains; significant; tangential; component; spark; gap; trigger; assembly; energizes; gaps; protecting; affected; voltage; prevent; excessive; energy; dissipation; prevent excessive; electrodes formed; surface profile; electrical field; particle trap; particle accelerator; charged particles; thermal expansion; inner surface; spark gap; charged particle; linear accelerator; electrode stack; seal structure; spark gaps; particles generated; secondary char; particle accelera; prevent excess; linear particle; /315/313/

Citation Formats

Broadhurst, John H. Linear particle accelerator with seal structure between electrodes and insulators. United States: N. p., 1989. Web.
Broadhurst, John H. Linear particle accelerator with seal structure between electrodes and insulators. United States.
Broadhurst, John H. Sun . "Linear particle accelerator with seal structure between electrodes and insulators". United States. doi:. https://www.osti.gov/servlets/purl/867169.
@article{osti_867169,
title = {Linear particle accelerator with seal structure between electrodes and insulators},
author = {Broadhurst, John H.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}

Patent:

Save / Share: