| Paper |
Title |
Page |
| TUPMN028 |
The New Photoinjector for the Fermi Project
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974 |
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- G. D'Auria, D. Bacescu, L. Badano, F. Cianciosi, P. Craievich, M. B. Danailov, G. Penco, L. Rumiz, M. Trovo, A. Turchet
ELETTRA, Basovizza, Trieste
- H. Badakov, A. Fukasawa, B. D. O'Shea, J. B. Rosenzweig
UCLA, Los Angeles, California
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FERMI@ELETTRA is a single-pass FEL user facility covering the spectral range 100 10 nm. It will be located near the Italian third generation Synchrotron Light Source facility ELETTRA and will make use of the existing 1.0 GeV normal conducting Linac. To obtain the high beam brightness required by the project, the present Linac electron source will be substituted with a photocathode RF gun now under development in the framework of a collaboration between Sincrotrone Trieste (ST) and Particle Beam Physics Laboratory (PBPL) at UCLA. The new gun will use an improved design of the 1.6 cell accelerating structure already developed at PBPL, scaled to 2998 MHz. We expect that the new gun design will allow a beam brightness increase by a factor 3-4 over the older version of the device. Some technical choices of the new design, including the enhancement of the mode separation, removal of the RF tuners, full cell symmetrization to limit the dipole and quadrupole RF field as well as an improved solenoid yoke design for multipole field corrections, will be discussed.
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| TUPMN029 |
Linac Upgrading Program for the Fermi Project : Status and Perspectives
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977 |
| |
- G. D'Auria, D. Bacescu, L. Badano, C. Bontoiu, F. Cianciosi, P. Craievich, M. B. Danailov, S. Di Mitri, M. Ferianis, G. C. Pappas, G. Penco, A. Rohlev, A. Rubino, L. Rumiz, S. Spampinati, M. Trovo, A. Turchet, D. Wang
ELETTRA, Basovizza, Trieste
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FERMI@ELETTRA is a soft X-ray forth generation light source under development at the ELETTRA laboratory. It will be based on the existing 1.0 GeV Linac, revised and upgraded to fulfil the stringent requirements expected from the machine. The overall time schedule of the project is very tight and ambitious, foreseeing to supply 10 nm photons to users within 2010. Here the machine upgrading program and the ongoing activities are presented and discussed.
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| TUPMN032 |
The New Elettra Booster Injector
|
983 |
| |
- M. Svandrlik, S. Bassanese, A. Carniel, K. Casarin, D. Castronovo, P. Craievich, G. D'Auria, R. De Monte, P. Delgiusto, S. Di Mitri, A. Fabris, R. Fabris, M. Ferianis, F. Giacuzzo, F. Iazzourene, G. L. Loda, M. Lonza, F. M. Mazzolini, D. M. Molaro, G. Pangon, C. Pasotti, G. Penco, L. Pivetta, L. Rumiz, C. Scafuri, G. Tromba, A. Vascotto, R. Visintini, D. Zangrando
ELETTRA, Basovizza, Trieste
- L. Picardi, C. Ronsivalle
ENEA C. R. Frascati, Frascati (Roma)
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The new full energy injector for Elettra is under construction. The complex is made of a 100 MeV linac and a 2.5 GeV synchrotron, at 3 Hz repetition rate. With the new injector top-up operation shall be feasible. In the first semester of 2007 the machine assembly has been performed. In Summer 2007 the commissioning is scheduled, while in Fall 2007 the connection to the Storage Ring is planned. The status of the project will be reported in this paper.
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| FRPMN024 |
Trapped modes analysis for the ELETTRA booster DCCT installation
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3970 |
| |
- P. Craievich, C. Bontoiu, G. Ciani, M. Ferianis
ELETTRA, Basovizza, Trieste
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In the new Elettra full energy injector, bunch charge measurements will be performed by different types of current transformers (CT), depending on their position (single pass or multi pass sections). In the single pass sections (Linac and Transfer lines) a new type of current transformer (in-flange CT by Bergoz) will be used. Main advantage of this device is a compact and reliable design; they are also specially suited in space critical application. For the booster ring a standard DC current transformer will be used to measure the DC component of the circulating beam current. The housing has been developed in house, including the magnetic shield and the ceramic gap in the vacuum chamber. Furthermore, calculations of the trapped modes in the current monitor housing are described. Longitudinal coupling impedance and loss factors for these resonant modes are estimated and we showed that dissipated power is not critical with ELETTRA booster parameters.
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| FRPMN025 |
Review of the Longitudinal Impedance Budget of the ELETTRA Storage Ring
|
3976 |
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- G. Penco, C. Bontoiu, P. Craievich, V. Forchi', E. Karantzoulis
ELETTRA, Basovizza, Trieste
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Changes in the longitudinal impedance budget occur due to the changes in the machine structure. In this paper we update the longitudinal impedance budget of Elettra following the installation of the new vacuum chambers in the last three years. The measurements are performed by mapping the horizontal closed orbit deviation in single bunch operation mode, taking full advantage of the newly installed high resolution BPM electrons system. The current results are compared with those of the previous measurements.
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