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Title: Beam imaging in the injection line of the INFN-LNS superconducting cyclotron

A cheap and efficient diagnostic system for beam monitoring has been recently developed at INFN-LNS in Catania. It consists of a high sensitivity CCD camera detecting the light produced by an ion beam hitting the surface of a scintillating screen and a frame grabber for image acquisition. A scintillating screen, developed at INFN-LNS and consisting of a 2 μm BaF{sub 2} layer evaporated on an aluminium plate, has been tested by using {sup 20}Ne and {sup 40}Ar beams in the keV energy range. The CAESAR ECR ion source has been used for investigating the influence of the frequency and magnetic field tuning effects, the impact of the microwave injected power, and of the focusing solenoids along the low energy beam transport on the beam shape and current. These tests will allow to better understand the interplay between the plasma and beam dynamics and, moreover, to improve the transport efficiency along the low energy beam line and the matching with the superconducting cyclotron, particularly relevant in view of the expected upgrade of the machine.
Authors:
; ; ; ; ; ; ; ; ; ; ;  [1]
  1. INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania (Italy)
Publication Date:
OSTI Identifier:
22483011
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; ARGON 40 BEAMS; BARIUM FLUORIDES; BEAM DYNAMICS; BEAM MONITORING; BEAM TRANSPORT; BEAMS; ECR ION SOURCES; KEV RANGE; MAGNETIC FIELDS; MICROWAVE RADIATION; SOLENOIDS; SUPERCONDUCTING CYCLOTRONS