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Title: High intensity high charge state ion beam production with an evaporative cooling magnet ECRIS

LECR4 (Lanzhou ECR ion source No. 4) is a room temperature electron cyclotron resonance ion source, designed to produce high current, high charge state ion beams for the SSC-LINAC injector (a new injector for sector separated cyclotron) at the Institute of Modern Physics. LECR4 also serves as a PoP machine for the application of evaporative cooling technology in accelerator field. To achieve those goals, LECR4 ECR ion source has been optimized for the operation at 18 GHz. During 2014, LECR4 ion source was commissioned at 18 GHz microwave of 1.6 kW. To further study the influence of injection stage to the production of medium and high charge state ion beams, in March 2015, the injection stage with pumping system was installed, and some optimum results were produced, such as 560 eμA of O{sup 7+}, 620 eμA of Ar{sup 11+}, 430 eμA of Ar{sup 12+}, 430 eμA of Xe{sup 20+}, and so on. The comparison will be discussed in the paper.
Authors:
; ; ; ; ; ; ;  [1] ; ; ;  [1] ;  [2] ; ;  [3] ;  [4]
  1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000 (China)
  2. (China)
  3. Institute of Electrical Engineering, CAS, Beijing 100190 (China)
  4. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
Publication Date:
OSTI Identifier:
22482897
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; CHARGE STATES; COMPARATIVE EVALUATIONS; CURRENTS; CYCLOTRONS; DESIGN; ECR ION SOURCES; EVAPORATIVE COOLING; GHZ RANGE 01-100; ION BEAMS; LINEAR ACCELERATORS; MAGNETS; MICROWAVE RADIATION; OPERATION; PUMPING; SUPERCONDUCTING SUPER COLLIDER; TEMPERATURE RANGE 0273-0400 K