ADIGE: the radioactive ion beam injector of the SPES project

n/

A storage ring for crystalline beam studies

The possibility of generating crystallized ion beams, i.e. beams whose particles are located at fixed positions, has always excited the interest of most people working on particle accelerators. The reason of this interest has many aspects: knowledge either of a completely new research field or of some of the applicative potentialities, connected with crystalline beams, would justify a careful investigation of this subject. After the successful exploitation of electron cooling in several heavy ion storage rings the possibility of generating crystalline ion beams became more realistic. New cooling methods, like laser cooling, give a further opportunity to reach an ultracold system of particles necessary for the state transition to the crystalline configuration. The conceptual design of a low-energy heavy-ion storage ring, called CRYSTAL, proposed for the experimental demonstration of crystalline beams at Legnaro Laboratories is presented. The physics of crystalline beams as well as the main criteria to design a storage ring suitable to crystallize ion beams are discussed. The effects of instabilities for space charge dominated beams, shear forces in dipole magnets and lattice periodicity breaking are also discussed in detail

The ADRIA project for high intensity radioactive beams production

A proposal of an accelerator complex (ADRIA) for the Laboratori Nazionali di Legnaro (LNL) is described in this report. The main components of the complex are a Heavy Ion Injection system and two rings, a Booster and a Decelerator, both with a maximum rigidity of 22.25 Tm, connected by a Transfer Line where exotic proposal has two main goals consisting in the isotopes are produced and selected. The proposal has two main goals consisting in the acceleration of stable ion species up to kinetic energies of the order of few GeV/u, at a repetition rate of 10 Hz with intensities of about 10[sup 12] ions per second, for fixed target experiments in nuclear physics and for the production of fully stripped radioactive beams, using particle fragmentation method for nuclear spectroscopy experiments. Fragments are accumulated in the Decelerator, with intensities 10[sup 8] [divided by] 10[sup 9] ions/s, cooled and delivered at the production energies or decelerated down to energies of few MeV/u, in proximity of the Coulomb barrier

CRYSTAL: a storage ring for crystalline beams and other applications

23sireservedThe possibility of generating crystallized ion beams has always excited the interest of most people working on particle accelerators. The reason of this interest has manifold aspects: either a knowledge on a completely new research field or some of the applicative potentialities, connected with crystalline beams, would justify a careful investigation on this content. The Conceptual Design of a low-energy heavy-ion storage ring, called CRYSTAL, proposed for the experimental demonstration of crystalline beams at Legnaro Laboratories is presented. Besides the study of crystalline beams the CRYSTAL Storage Ring (CSR) offers a large potential for fundamental research in nuclear, atomic and molecular physics. In this sense, the development of a second generation cooler ring with better lattice will give large possibilities to investigate more deeply in fundamental physics.mixedTECCHIO, L.; ATUTOV, A.; BISOFFI, G.; BUROV, A.; CALABRESE, R; CIULLO, G.; CLAUSER, T.; DAINELLI, A.; DIKANSKY, N.S.; GUIDI, V.; GUSTAFSSON, S.; LAMANNA, G.; LENISA, P.; MARIOTTI, E.; MOI, L.; MOISIO, M.F.; PARKHOMUCHUK, V.V.; PESTRIKOV, D.V.; PISENT, A.; POGGI, M.; STAGNO, V.; VARIALE, V.; YANG, B.Tecchio, L.; Atutov, A.; Bisoffi, G.; Burov, A.; Calabrese, R; Ciullo, G.; Clauser, T.; Dainelli, A.; Dikansky, N. S.; Guidi, V.; Gustafsson, S.; Lamanna, G.; Lenisa, P.; Mariotti, E.; Moi, L.; Moisio, M. F.; Parkhomuchuk, V. V.; Pestrikov, D. V.; Pisent, A.; Poggi, M.; Stagno, V.; Variale, V.; Yang, B

The Legnaro CRYSTAL proposal

The conceptual design of a low-energy heavy-ion storage ring, called CRYSTAL, proposed for the experimental demonstration of Crystalline Beams is presented. The design of the project has been optimized for the study of crystalline beams; bru provisions have also been made for carrying out experiments for different nature in nuclear, atomic and molecular physics. The tandel-ALPI heavy-ion facilities of the Laboratori Nazionali di Legnaro is assumed as the injector for the storage ring. For the Crystalline mode the possibility to inject particles from an indipendent low energy source is also considered. The storage ring has a circumference of 70 m, large enough to allow a maximum magnetic rigidity of 3.8 Tm. It has a periodicity of eight, made of eight dipole magnets surrounded by doublet quadrupoles, sextupoles and a drift space free of magnets 3.4 m long. The demonstration of Crystalline beams is feasible with very effective electron and laser cooling and requires dedicated diagnostics. The existence of stable ground state for Crystalline Beams has been demonstrated by computer simulations. The basixc structures are the helices and twisted multiplets. The ground state configurations depend on the focusing parameters of the storage ring. The transition thresholds from one ground state to another depends on the focusing parameters and particles density

The CRYSTAL storage ring: design and perspectives

eds. K. Hatanaka, K. Sato, and K. Tumur

Ion beam crystallization

After the successful exploitation of electron cooling in several heavy ion storage rings the possibility of generating crystalline ion beams gained the interest of particle accelerator physicists. New cooling methods, such as laser cooling, give further opportunity to reach ultra cold system of particles necessary for the state transition to the crystalline configuration. Crystalline beams will give insight into a completely new research field, reaching higher standards in precision measurements and techniques. The applicative potentialities of crystalline beams justify a careful investigation on this subject. The conceptual design of a low-energy heavy-ion storage ring, called CRYSTAL, proposed for the experimental demonstration of crystalline beams at Legnaro LNL is presented

CRYSTAL: a storage ring for crystalline ion beams

This is brief summary of the Design Report concerning the low-energy heavy-ion storage ring proposed for the experimental demonstration of Crystalline Beams and other applications. The design of the project has been in a first stage optimized for the study of Crystalline Beams; but provisions have also been made for carrying out experiments of different nature with applications to nuclear, atomic and molecular physics. The Tandem- ALPI heavy-ion facilities of the Laboratori Nazionali di Legnaro is assumed as the injector for the storage ring

The crystal storage ring project at Legnaro

We present a study on a storage ring dedicated to ion beam crystallization. Lattice has been designed in order to reduce the phenomena acting against the cooling such as intra-beam scattering and envelope instabilies. Computer simulatious show different kinds of crystaline structures and some new features related to shear effect