title: Beam imaging in the injection line of the INFN-LNS superconducting cyclotron.
abstract: 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 BaF2 layer evaporated on an aluminium plate, has been tested by using (20)Ne and (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.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Dario
authors.initials: D
authors.lastname: Nicolosi
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Cosentino
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: David
authors.initials: D
authors.lastname: Mascali
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Alfio
authors.initials: A
authors.lastname: Pappalardo
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Maurizio
authors.initials: M
authors.lastname: Castro
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Celona
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Carmelo
authors.initials: C
authors.lastname: Marchetta
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Marletta
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Antonio
authors.initials: A
authors.lastname: Maugeri
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Danilo
authors.initials: D
authors.lastname: Rifuggiato
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Angelo
authors.initials: A
authors.lastname: Seminara
authors.affiliation: INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123 Catania, Italy.
authors.forename: Santo
authors.initials: S
authors.lastname: Gammino