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Title |
Page |
| THPP038 |
Phase 1 Commissioning Status of the 40 MeV Proton/Deuteron Accelerator SARAF
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3452 |
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- C. Piel, K. Dunkel, F. Kremer, M. Pekeler, P. vom Stein
ACCEL, Bergisch Gladbach
- D. Berkovits, I. Mardor
Soreq NRC, Yavne
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Since January 2007 all accelerator equipment of the Phase 1 for the 40MeV Proton/Deuteron Accelerator is at the SARAF site and installed for the commissioning. The target of Phase 1 is to get the ECR ion source and RFQ into operation and to perform all relevant test with the cryo module housing 6 super conducting half wave resonators, to show that the design values of the system can be reached. Based on those results the Phase 2 shall start, to reach the final energy of 40MeV with up to 2mA of Protons and Deuterons. The ECR source is in routine operation since June 2006, the RFQ already have been operated with Protons and currently is under characterisation. After the characterisation has been finalised it is anticipated to move the cryo module in the beam line and to perform further beam characterisation. The entire beam characterisation is closely followed by beam dynamics simulations. Recent results of the commissioning will be presented and comparisons made between measurements and beam dynamics calculations.
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| THPP041 |
Beam Dynamics Simulation of the 1.5 MeV/u Proton/Deuteron Beams Measured at the SARAF RFQ Exit
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3458 |
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- J. Rodnizki, B. Bazak, D. Berkovits, G. Feinberg, A. Shor, Y. Yanay
Soreq NRC, Yavne
- K. Dunkel, C. Piel
ACCEL, Bergisch Gladbach
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The Soreq Applied Research Accelerator Facility (SARAF) accelerator's front-end is composed of a 20 keV/u protons and deuterons ECR ion source, a 5 mA low energy beam transport and a 1.5 MeV/u, 4 mA, 176 MHz, 4-rod RFQ. In this work, beam dynamics simulations of the SARAF accelerator front-end is compared to the first beam measurements taken during commissioning. Beam transmission, ion energy and bunch width as a function of the RFQ power have been measured in the medium energy beam transport diagnostics and using a dedicated diagnostic plate. The simulations and measurements show similar trends. This agreement allows calibrating the RFQ power to its electrodes voltage, in the low electric field range, where the common x-ray measurement method is not feasible. The benchmark between simulation and measurement shows that the RFQ model in our simulation can well predict the measured values. The simulation is covering the beam tail as well and is used to find the optimal operating voltage by minimizing the low energy tail and hence the beam loss downstream the accelerator.
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