MC4: Hadron Accelerators
A20 Radioactive Ions
Paper Title Page
THPGW030 Towards the First Beams from the ADIGE Injector for the SPES Project 3647
 
  • A. Galatà, L. Bellan, J. Bermudez, G. Bisoffi, D. Bortolato, M. Comunian, A. Conte, M. De Lazzari, P. Francescon, F. Gelain, D. Marcato, M.O. Miglioranza, M.F. Moisio, E. Munaron, S. Pavinato, D. Pedretti, A. Pisent, M. Roetta, C. R. Roncolato, M. Rossignoli, G. Savarese
    INFN/LNL, Legnaro (PD), Italy
  • V. Andreev
    ITEP, Moscow, Russia
  • J. Angot, D. Bondoux, T. Thuillier
    LPSC, Grenoble Cedex, France
  • M.A. Bellato
    INFN- Sez. di Padova, Padova, Italy
 
  The ADIGE (Acceleratore Di Ioni a Grande carica Esotici) injector of the SPES (Selective Production of Exotic Species) project is now in an advanced phase of installation. Its main components have been designed following particular needs of the project: first, an Electron Cyclotron Resonance (ECR)-based Charge Breeder (SPES-CB), to boost the charge states of the radioactive ions produced at SPES and allow their post-acceleration. Then, a stable 1+ source and a complete electrostatic beam line to characterize the SPES-CB. Finally, a unique Medium Resolution Mass Spectrometer (MRMS, R=1/1000), mounted on a high voltage platform downstream the SPES-CB, to clean the radioactive beam from the contaminants induced by the breeding stage. This contribution describes the status of the injector, in particular the installation of the platform housing the MRMS, the access and safety system adopted and the first beams to be extracted from the stable 1+ source.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-THPGW030  
About • paper received ※ 30 April 2019       paper accepted ※ 21 May 2019       issue date ※ 21 June 2019  
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THPGW031 Hardware Commissioning of the Refurbished Alpi LINAC at INFN-LNL to Serve as Spes Exotic Beam Accelerator 3650
 
  • G. Bisoffi, L. Bellan, D. Bortolato, O. Carletto, F. Chiurlotto, M. Comunian, A. Conte, T. Contran, M. De Lazzari, E. Fagotti, A. Friso, M.G. Giacchini, M. Lollo, D. Marcato, M.O. Miglioranza, P. Modanese, M.F. Moisio, M. Montis, E. Munaron, G. Nigrelli, S. Pavinato, M. Pengo, A. Pisent, M. Poggi, L. Pranovi, C. R. Roncolato, M. Rossignoli, D. Scarpa
    INFN/LNL, Legnaro (PD), Italy
  • M.A. Bellato
    INFN- Sez. di Padova, Padova, Italy
 
  The ALPI linac at INFN-LNL was substantially refur-bished in 2018, especially in view of its use as secondary accelerator for exotic species in the framework of the SPES project. In particular: 10 magnetic triplets were replaced with higher gradient ones; two cryomodules with quarter wave resonator were moved from the PIAVE injector to ALPI, so as to make them available both for exotic and stable beams; the cryogenic plant was renovat-ed; the whole linac, its injector and its beam lines were eventually realigned via LASER tracking (LT). The ex-pected outcome of the refurbishment project is a larger beam transmission (crucial for the efficient transport of the unavoidably low current exotic beams) and improved overall reliability so as to further extend the lifetime of an already 25 years old machine. The hardware commission-ing of this new configuration will be reported.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-THPGW031  
About • paper received ※ 30 April 2019       paper accepted ※ 22 May 2019       issue date ※ 21 June 2019  
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THPGW094 Phasing of Superconductive Cavities of the REX/HIE-ISOLDE LINAC 3786
 
  • E. Matli, N. Bidault, E. Piselli, J.A. Rodriguez
    CERN, Geneva, Switzerland
 
  ISOLDE is a facility dedicated to the production of a large variety of Radioactive Ion Beams. The facility is located at the European Organization for Nuclear Research (CERN). In addition to two target stations followed by low energy separators, the facility includes a post-accelerating linac with both normal conducting (REX) and superconducting (HIE-ISOLDE) sections. The HIE-ISOLDE section consists of four cryomodules with five SRF cavities each that need to be phased individually. In this paper, we will describe the procedure and the software applications developed to phase each of the cavities as well as improvements that will be introduced in the near future to reduce the time it takes to complete the process.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-THPGW094  
About • paper received ※ 02 May 2019       paper accepted ※ 22 May 2019       issue date ※ 21 June 2019  
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THPGW095 Characterization of REX/HIE-ISOLDE RFQ Longitudinal Acceptance and Transmission 3789
 
  • N. Bidault, E. Matli, J.A. Rodriguez
    CERN, Meyrin, Switzerland
 
  The Isotope mass Separator On-Line DEvice (ISOLDE) based at CERN, is a Radioactive Ion Beam (RIB) facility where rare isotopes are produced from 1.4 GeV-proton collisions onto a target then are manipulated and transported to user experimental stations for studies, notably in the domain of nuclear physics. The RIB of interest is delivered to a dedicated experimental station either at low (up to 60 keV) or high energy (MeV/u range) after acceleration through the recently completed REX/HIE-ISOLDE linac upgrade. The first stage of the linac consists of normal-conducting IH and spiral-resonators and is preceded by a Radio-Frequency Quadrupole (RFQ). A description of the experimental setup and the specifications of the RFQ will serve as an introduction for the presentation of recent results about the transmission efficiency of the RFQ. Furthermore, a newly developed technique will be demonstrated, that allow the capture of ion beam intensities below the femto-Ampere range. In fine, a measurement of the longitudinal acceptance of the RFQ will be included.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-THPGW095  
About • paper received ※ 13 May 2019       paper accepted ※ 23 May 2019       issue date ※ 21 June 2019  
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