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Title: Eliminating unwanted electrons in EBIS devices

In electron beam ion sources, step-wise ionization to high charge states is accomplished by magnetically confined electron beam. Electron space charge and high voltage electrodes confine the ions. The relativistic heavy ion collider (RHIC) ion source Debye length meets requirements for instabilities with free source of energy to grow. Electrons stripped from ions provide energy for a variety of microinstabilities to grow. Possible solution is to remove these electrons from the trap to a drift tube biased to higher voltage than the other tubes between the gate and the collector. If needed, a split drift tube for bleeding these electrons to ground is added.
Authors:
 [1]
  1. Collider Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
Publication Date:
OSTI Identifier:
22482919
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 87; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BROOKHAVEN RHIC; CHARGE STATES; DEBYE LENGTH; DRIFT TUBES; ELECTRIC POTENTIAL; ELECTRODES; ELECTRON BEAM ION SOURCES; ELECTRON BEAMS; ELECTRONS; EQUIPMENT; INSTABILITY; IONS; SPACE CHARGE; TRAPS