| Paper |
Title |
Page |
| TUPLS053 |
Beam Dynamics of a High Current IH-DTL Structure for the TWAC Injector
|
1615 |
| |
- S. Minaev, T. Kulevoy, B.Y. Sharkov
ITEP, Moscow
- U. Ratzinger, R. Tiede
IAP, Frankfurt-am-Main
|
|
| |
A powerful ion injector based on a laser ion source is needed for an efficient operation of the Tera Watt Accumulator (TWAC) complex including a heavy ion synchrotron and a storage ring, which is under progress now at ITEP, Moscow. The Interdigital H-type drift tube linac (IH-DTL) structure operating at 162 MHz is proposed for the second stage of the injector linac behind of a 81 MHz RFQ. Consisting of independently driven sections with inter-tank quadrupole triplet focusing, this structure will accelerate highly stripped ions with charge-to-mass ratios above 1/3 in the energy range from 1.57 MeV/u at the RFQ exit to 7 MeV/u. Beam currents up to 100 mA are expected for medium ions like Carbon or Aluminum. Since the rf frequency is duplicated at the entrance of the IH-DTL in order to reduce size as well as power consumption, space charge effects are dominant at full current. Beam dynamics and structure parameters are discussed in detail.
|
|
| TUPLS055 |
First Section of a 352 MHz Prototype Alvarez DTL Tank for the CERN SPL
|
1621 |
| |
- S.V. Plotnikov, A.P. Durkin, D. Kashinskiy, V.A. Koshelev, T. Kulevoy, S. Minaev, V. Pershin, B.Y. Sharkov, V. Skachkov
ITEP, Moscow
- V.F. Basmanov, V.A. Demanov, I.D. Goncharov, E.S. Mikhailov, N.I. Moskvin, S.T. Nazarenko, V.S. Pavlov, V.V. Porkhaev, V.T. Punin, A.V. Telnov, V.N. Yanovsky, N.V. Zavyalov, S.A. Zhelezov
VNIIEF, Sarov (Nizhnii Gorod)
|
|
| |
In the Linac4/SPL projects at CERN, 352 MHz 30 mA DTL Alvarez accelerating structure will be used to accelerate protons between 3 and 40 MeV. The R&D for the development of a prototype structure for the energy range from 3 to 10 MeV is taking place jointly at ITEP and VNIIEF. The design of this 2.7 m Alvarez tank containing 27 drift tubes is described in this document. Results of calculations of the section parameters are presented. One of the main features of the design is the use of permanent magnets made of SmCo5 alloy as quadrupole focusing lenses (PMQ) inside the drift tubes. Details of the experimental PMQ-equipped drift tube are described.
|
|
| TUPLS105 |
Sputter Probes and Vapor Sources for ECR Ion Sources
|
1744 |
| |
- M. Cavenago, A. Galatà, M. Sattin
INFN/LNL, Legnaro, Padova
- T. Kulevoy, S. Petrenko
ITEP, Moscow
|
|
| |
Sputter probes are a promising method for injecting controlled quantities of metallic elements inside ECRIS ion source, provided that sputter rate can be controlled, so that high charge states and low sample consumption rate will be attained. Moreover pressure at the probe and inside source should be different. With a simple differential pumping scheme and a sputter probe at 25 mm from ECRIS plasma, a 200 nA current of 120Sn18+ was easily obtained. Typical results (for Sn and Ti) of an inductively heated rf oven are discussed for comparison. Improvements of sputter probe concept and geometry are also described.
|
|