Abstracts Brochure - CERN

TUPLS — Poster Session 27-Jun-06 16:00 - 18:00
magnetic fields produced by Sm-Co permanent magnets. The magnetic field strength near the extraction region is
designed to be less than 20 gauss. Through the 100 mm diameter extraction area of the concaved electrodes 300
beamlets are formed with apertures of 4 mm. The focal length of the concaved electrodes is designed to be 750 mm.
The beam quality of the extracted He + beam will be measured by several beam diagnostic apparatuses. The total
beam current, the beam profile and the beam emittance will be measured to design a proper alkali metal vapor cell
for a He − beam production by a double charge exchange process and a beam transport line to the post accelerator up
to MeV region. In the article, the details of the ion source and the beam diagnostic system will be described.
Application of DPIS to APF-IH Linac
We are now designing a Laser Ion Source
(LIS), which will be adopted to an Alternating
Phase Focusing Inter-digital H (APF-IH)
structure linac using the Direct Plasma Injection
Scheme (DPIS). The DPIS has been
J. Tamura, T. Hattori, N. Hayashizaki, T. Ishibashi, T. Ito (Research
Laboratory for Nuclear Reactors, Tokyo Institute of Technology) A.
Kondrashev (ITEP) M. Okamura (RIKEN)
applied to RFQ linacs and has successfully achieved very high current with simple structure. The IH linac was
designed to accept 40 keV proton beam which could be produced by the DPIS. The combination of the DPIS and IH
structure linac will realize quite compact accelerator complex with intense proton beam. The detailed design study
and the proton plasma properties will be discussed.
The Project of the Superconducting ECR Ion Source DECRIS-SC2
A new "liquid He-free" superconducting
Electron Cyclotron Resonance Ion Source
DECRIS-SC2, to be used as an injector for the
U-400M cyclotron, is presently under construction
at the FLNR and LHE (JINR). The
axial magnetic field of the source is created
S.L. Bogomolov, V.B. Bekhterev, S.N. Dmitriev, A. Efremov, B.I.
Iakovlev, N. Lebedev, V.N. Loginov, Yu. Yazvitsky (JINR) V.I.
Datskov, V.M. Drobin, V.V. Seleznev, Yu.A. Shishov, G.P. Tsvineva
(JINR/LHE) H. Malinowski (New Affiliation Request Pending)
by the superconducting magnet system, and for the radial plasma confinement a hexapole made of NdFeB permanent
magnet is used. The microwave frequency of 14 GHz will be used for ECR plasma heating. The DECRIS-SC2
superconducting magnet system is designed for the induction of a magnetic field on the axis of the source of up to
1,4T (extraction side) and 1,9T (injection side) at nominal current of 75 A. Cooling of the coils is carried out by GM
cryocooler with cooling power of 1 W at temperature 4,5 K The basic design features of the superconducting magnet
and of the ion source are presented. The main parts of the magnet are in production. The test of the superconducting
magnet system is scheduled for August, and the first beam test of the source is expected in the end of 2006.
The New 14 GHz Ion Source for the U-400 Heavy Ion Cyclotron
The new 14 GHz ion source DECRIS-4, to be
used as a second injector of heavy multiply
charged ions for the U-400 cyclotron and, in
the future, also as a "charge breeder" (the "1+
-> n+" method) for the second phase of the
M. Leporis, V.B. Bekhterev, S.L. Bogomolov, A. Efremov, G. Gulbekyan,
Yu.K. Kostyukhov, N. Lebedev, V.N. Loginov, Yu. Yazvitsky
(JINR)
DRIBs project, has been designed and constructed at the FLNR. The main feature of the ion source design is the
249
TUPLS097
TUPLS098
TUPLS099