IPAC'23 - Student Poster Session Guide

IPAC’23 / STUDENT POSTER SESSION GUIDE 41 Student Poster Session The CERN Super Proton Synchrotron (SPS) aims at providing stable proton spills of several sec- onds to the North Area (NA) fixed target experiments via third-integer resonant slow extraction. However, low-frequency power converter ripple (primarily at 50 and 100 Hz) and high-frequen- cy structures (mainly at harmonics of the revolution frequency) modulate the extracted inten- sity, which can compromise the performance of the data acquisition systems of the NA exper- iments. In this contribution, the implementation of Radio Frequency (RF) techniques for spill quality improvement is explored, with particular focus on empty bucket channelling. It is shown that both the main RF systems (at 200 and 800 MHz) can be successfully exploited to improve the SPS slow extraction. SUPM075 Dielectric laser acceleration for dark sector studies Raziyeh Dadashi Motlagh (Paul Scherrer Institut) . Mike Seidel, Pavle Juranic, Rasmus Ischebeck (Paul Scherrer Institut), Frank Zimmermann, Richard Jacobsson (European Organization for Nuclear Research), Mieczyslaw Krasny (LPNHE), Uwe Nieder- mayer (Technische Universitaet Darmstadt). Dielectric laser accelerators are suitable for a low number of electrons, which makes them applicable for indirect research of the dark sector. This work aims to achieve a high repetition rate of single electrons in an energy range of 10-20 GeV based on dielectric laser acceleration. We will focus on optimizing the single cell to design an efficient periodic accelerating structure. To check the dynamics and survival of the particles, we will provide the results from tracking the particles along the structure using the code DLAtrack6D, which is explicitly developed for dielectric laser accelerators. Finally, we will focus on the structure manufacturing process and provide the results from our measurements. SUPM076 Development of He2+ 10GHz ECR Ion Source for astatine generation accelerator Sosuke Kikuchi (Research Laboratory for Nuclear Research) . Daisuke Nagae (RIKEN Nishina Center), Masahiro Okamura (Brookhaven National Laboratory), Nori- yosu Hayashizaki (Research Laboratory for Nuclear Research). Tokyo Institute of Technology is planning a linac facility to produce 211 astatine, an isotope for αemitter cancer therapy. To produce astatine, we aim to bombard a bismuth target with helium ion beam of sufficient intensity at 28 MeV. Unlike a cyclotron, this facility will be able to acceler- ate a milliampere class high intensity helium ion beam. In addition, the subsequent accelerator system can be made compact by providing fully stripped helium ions. For this purpose, the ECR ion source is best suited. The multiply charged ions are generated by resonant absorption of microwaves by electrons orbiting in a magnetic field and are capable of supplying high-intensity beams. The ECR ion source will use an RF frequency of 10 GHz, and a suitable magnetic field distribution will be designed to confine the plasma by a composite magnetic field consisting of a mirror field using two solenoid coils and a magnetic field generated by a sextupole magnet to increase the charge states of the ions in the chamber. The final goal is to extract He2+ at 10 mA. In this presentation, the design and magnetic field distribution are reported, including