| Paper | Title | Page |
|---|---|---|
| TUO4AB01 | SPES Beam Dynamics | 220 |
|
||
| At LNL INFN is under construction a Rare Isotope Facility (SPES), based on a 35-70 MeV proton cyclotron, able to deliver two beams with a total current up to 0.5 mA, an ISOL fission target station and the existing ALPI superconducting accelerator as post accelerator (up to 10 MeV/u for A/q=7). In this talk the elements between the production target and the experiments will be described: in particular the selection system, the ECR charge breeder, the second separation system and the new CW RFQ (80 MHz, 727 keV/u, internal bunching). The problems that have been solved during the design phase are partly common to all RIB facilities, like the necessity to have high selectivity and high transmission for a beam of very low intensity, plus the specific challenges related to the use of ALPI (with a reduced longitudinal acceptance) and related to the specific lay out. At present the design phase is concluded, and the procurement procedure for the charge breeder, the transfer lines and the RFQ are advanced or will be launched in the next months. The main beam dynamics aspects of the transfer lines (including magnetic selections) and RFQ will be discussed in detail. | ||
|
Slides TUO4AB01 [7.036 MB] | |
WEO4LR01 |
New Methods and Concepts for Very High Intensity Beams | |
|
||
| For very high intensity beams, not only beam power but also space charge is a concern, so that both aspects should be taken into considerations for any analysis. Beam blowup due to space charge forces can be mitigated by bringing closer the focusing and accelerating components, making the beam diagnostic implementation difficult. A clear strategy for beam diagnostic has to be defined. Beam halo is no longer negligible but plays a significant role in the dynamic of the beam and in the particle loss process. Beam optimization must take it into account and beam characterization must describe not only the core part but also the halo one. This paper presents the new concepts and methods for beam analysis, beam diagnostics, beam optimization and beam characterization. | ||
|
|
Slides WEO4LR01 [3.342 MB] | |
| THO2LR04 | Catalogue of Losses for the Linear IFMIF Prototype Accelerator | 360 |
|
||
| One major activity of the EVEDA (Engineering Validation and Engineering Design Activities) phase of the IFMIF (International Fusion Materials Irradiation Facility) project consists in building, testing and operating, in Japan, a 125 mA/9 MeV deuteron accelerator, called LIPAc, which has been developed in Europe. For the accelerator safety aspects, a precise knowledge of beam loss location and power deposition is crucial, especially for a high intensity, high power accelerator like LIPAc. This paper presents the beam dynamics simulations allowing to estimate beam losses in different situations of the accelerator lifetime: starting from scratch, beam commissioning, tuning or exploration, routine operation, sudden failure. Some results of these studies are given and commented on. Recommendations for hot point protection, beam stop velocity, beam power limitation are given accordingly. | ||
|
|
Slides THO2LR04 [2.790 MB] | |
FRO2AU01 |
Working Group E Summary | |
|
||
| Summary of Working Group E | ||