Abstracts Brochure - CERN

TUPLS044
TUPLS045
TUPLS046
TUPLS047
27-Jun-06 16:00 - 18:00 TUPLS — Poster Session
The 3D Beam Dynamics with the Space Charge in the Low and Middle Energy Super-conducting
Option of HIPPI
For the low and middle energy of the High
N.E. Vasyukhin, R. Maier, Y. Senichev, R. Tölle (FZJ)
Intensity Proton Pulse Injector (HIPPI), a superconducting
option is considered.The 3D
beam dynamics simulation results in the slot and the finger-slot sections covering the energy range from 3 to 160 MeV
are presented. The optimization aim is the increase of beam current together with the reduction of emittance growth,
beam losses and costs. The slot structure is compared with the conventional spoke structure.
Completion of the Commissioning of the Superconducting Heavy Ion Injector PIAVE at
INFN-LNL
G. Bisoffi, G. Bassato, A. Battistella, l. Boscagli, A. Calore, S.
Canella, D. Carlucci, M. Cavenago, F. Chiurlotto, M. Comunian, M.
De Lazzari, A. Facco, E. Fagotti, A. Galatà, P. Modanese, M.F. Moisio,
A. Pisent, M. Poggi, A.M. Porcellato, P.A. Posocco, C. Roncolato, E.
Sattin, S. Stark (INFN/LNL) N. Schiccheri (CNAO Foundation)
232
At INFN-LNL the commissioning of the
injector PIAVE, based on superconducting
RFQs, has been completed. All the superconducting
cavities (two RFQs and 8 quarter
wave resonators - QWR) have shown very
satisfactory stability with respect to changes
of the liquid helium pressure and micro-
phonics. Beam parameters are very close to the nominal values. The commissioning was completed by accelerating
the pilot beam 16O 3+ with the PIAVE injector and the booster linac ALPI (summer 2005). Since December 2005,
a number of test beams were accelerated (mainly noble gas species) with PIAVE and ALPI and delivered to user
experimental stations. Regular operation will be scheduled from Fall 2006 onwards.
Comparison of Beam Simulation with Measurement for the PIAVE Injector
E. Fagotti, M. Comunian, A. Pisent, P.A. Posocco, C. Roncolato
(INFN/LNL) N. Schiccheri (CNAO Foundation)
The PIAVE injector has been tested during
the last two years. Different ion beams are
injected into the 587.5 KeV/A, CW SRFQ and
transported through eight low beta cavities
up to a Faraday Cup. Computer-simulation-code predictions of the expected beam performance are compared with
the measured beam currents and beam profiles. Good agreement is obtained between the measurements and the
simulations.
An Analysis of Lumped Circuit Equation for Side Coupled Linac (SCL)
V.G. Vaccaro, A. D’Elia (Naples University Federico II and INFN)
M.R. Masullo (INFN-Napoli)
The behaviour of a SCL module is generally
described by resorting to an equation
system borrowed from lumped circuit theories.
This description holds for a narrow
frequency band (mono-modal cavity behaviour). A milestone in this field is represented by the classical analysis
made by Knapp & alii where the equations allow for the resonant frequencies of the cavities and the first and second
order coupling constants. Eigenvalues and eigenvectors (resonant frequencies of the system and relevant current