DESIGN OF MULTIFUNCTIONAL FACILITY BASED ON ECR ION SOURCE FOR MATERIAL SCIENCE S. Andrianov, B. Chalykh, M. Comunian, G. Kropachev, R. Kuybeda, T. Kulevoy, A. Ziiatdinova, ITEP, Moscow, Russia; LNL-INFN, Legnaro (PD), Italy; NRNU "MEPhI", Moscow, Russia Abstract The traditional experimental method for new materials radiation resistance investigation is a reactor irradiation. However, there are some difficulties during steel exposure in reactor. Simulationmethod based on ion irradiation allows accelerating the defect generation in the material under investigation. Also a modification of materials by ion beams represents the great practical interest for modern material science. The design of the test-bench based on ECR ion source and electrostatic acceleration is presented. This paper describes the results of beam dynamics simulation in the transport channels of the test- bench. Simulation was carried out in the "real" fields. Continuous ion beam achievable at the test-bench enables beam fluence on the target up to 10 16 p/m 2 . INTRODUCTION The creation of new high-tech energy systems is associated with the use of new radiation-resistant materials. A necessity emerges to study and test the new materials. Neutron flux irradiation of samples occurs in the reactor. Certain difficulties arise when steel is exposed to radiation in the reactor. These problems are primarily associated with the time it takes to reach required doses. Even in fast reactors the exposure to the required doses may take years. There is a need to take into account the complexity and high cost of reactor-based systems and, consequently, of the tests themselves. High level of induced radioactivity of the materials is another factor which complicates their study. It emerges in the course of long-term irradiation in the reactor core and makes it difficult to further study the irradiated samples. Low- energy ions can be used to model the process of kicking out atoms formed in the course of neutron irradiation. Ion beams irradiation is an express analysis method which was offered in the 80-s[1]. This method allows to accelerate the process of defect emergence in irradiated materials due to the speeding up of dose accumulation. It must be taken into account that the speeding up of the dose accumulation during the simulation may lead to discrepancies in the results as compared to the real condition that exist in the reactor. Hence, it is considered necessary to reproduce the conditions of the reactor as closely as possible. The process of defect formation depends on the temperature, so the irradiatiated target will be specially heated. Now, experiments are carried out using a pulse beam on HIP-1 RFQ [2]. Oscillation of samples temperature must not exceed 1-3 degrees Celsius. This criterion is very hard to achieve when using a pulse beam. In order to be able to reproduce the processes in the reactor with greater accuracy our target will not only be heated but defect containing area will be implanted with ions of hydrogen and helium. This will be done with the intention to model the accumulation of He and H in the reactor wall under the influence of the neutron flux. Besides radiation-resistant material research, modification of materials by high energy ion beams is of great practical interest. Vanadium, chromium, tungsten ions beams can be used for this purpose. A great increase in durability and surface strength can be achieved by irradiation with powerful beams[3]. TEST-BENCH SET-UP It is planned that apart from material science related tests experiments to study the interaction of the ion beam with plasma and metal vapor targets will be carried out as well. For plasma target and material modification experiments ion beams of 1-2 MeV are necessary. In order to achieve this installation of electrostatic accelerating tube has been planned. ITEP is developing a multifunctional facility which will make possible the ion beam experiments that will allow to investigate materials by means of express analysis based on imitation of damages materials sustain in the reactor. The test-bench is designed to have four experimental channels: 1. For experiments simulating of damage caused by neutrons 2. For both modifications of material surfaces and simulation experiments 3. For plasma target experiments 4. For injection of ion beam into accelerating structure Experimental channels will exit the bending magnet at 90°, 60°, 30°, 0° angles correspondingly. Specifications of the last two channels are still being discussed. So modeling of their beam dynamics will be carried out at a later date. Geometry and tract elements of the test-bench were chosen on the basis of beam dynamics modeling. It had two stages: 1. Modeling of beam dynamics in approximation to “ideal” fields[4]. 2. Modeling of beam dynamics in approximation to “real” fields. Modeling for Fe 10+ , H + , He + ions was done in both channels. In order to minimize the possible effects of chemical reactions on the experiment it is best to use the ions of the same element of which the target is built. In this case the Fe ions are going to be used as it is the main constituent of construction steel. A modern ECR ion source can WEPSB27 Proceedings of RuPAC2014, Obninsk, Kaluga Region, Russia ISBN 978-3-95450-170-0 220 Copyright © 2014 CC-BY-3.0 and by the respective authors 13 Medical and industrial applications