IPAC'23 - Student Poster Session Guide

IPAC’23 / STUDENT POSTER SESSION GUIDE 40 Student Poster Session Synchrotron Radiation Research Center). Laser-wake field accelerators (LWFAs) are potential candidates to produce intense relativistic electron beams to drive compact free electron lasers (FELs) in VUV and X-ray regions. In High- Field Physics and Ultrafast Technology Laboratory at National Central University (NCU), an LWFA is being developed to produce a 250 MeV high-brightness electron beam by their 100-TW laser system. An FEL seeded by a 266-nm UV laser is under design to generate extreme ultraviolet (EUV) radiation. The initial phase of the project is to develop a beam energy modulator through the interaction of the LFWA-produced electron beam with the 266-nm seed laser in a 10-period planar undulator of 35-mm period length. An electron beamline has been designed based on linear optics to deliver the intense electron pulse from LWFA to the undulator and focus prop- erly. However, due to the large energy spread of the beam, chromatic effects on beam trans- portation may be severe. In this work, we perform a detailed simulation of the LWFA FEL from experimental data of the NCU LWFA electron source. A 6D phase space analysis of multi-parti- cle dynamics using IMPACT code [1] is to determine how significant the effects of beam energy spread on beam properties along the beamline are. The electron beam is then transferred to GENESIS [2] and Puffin [3] to see the laser beam interaction in the undulator. Further study of the HGHG scheme is evaluated using both FEL codes to see the infuence of ultra-short electron bunch. SUPM073 ECR Ion Source with High Temperature Superconducting REBCO Coils Tsun Him Chong (Osaka University) . Atshushi Ishiyama (Waseda University), Hiroki Kanda, Hiroshi Ueda, Mitsuhiro Fukuda, Tetsuhiko Yorita (Osaka University), Jun Yoshida, Takashi Hirayama, Yukio Mikami (Sumitomo Heavy Industries Ltd.), Satoshi Fukui (Niigata University), So Noguchi (Hokkaido University), Yuji Matsubara (Sumitomo Heavy Industies, Ltd.). High temperature superconductor REBCO has the property of maintain a high critical current density under strong external magnetic field, which makes a promising material for electro- magnets in cyclotron and ECR ion source. Therefore, an ECR ion source using iron-less REBCO coils as electromagnet is under development in Research Center for Nuclear Physics (RCNP), Osaka University. A coil system with 3 circular solenoid coils and 6 racetrack sextupole coils was fabricated, and low-temperature performance tests in 77 K were carried out. The test results upon the stability and capability of magnet field inducing will be presented in this work. The design of the ion source will also be discussed. Results yielded in this research will also be made the best use of the development of a skeleton cyclotron, a compact air-core cyclotron being developed in RCNP, which is also planned to use REBCO coils as electromagnets. SUPM074 RF techniques for spill quality improvement in the SPS Pablo Andreas Arrutia Sota (Oxford University) . Arthur Spierer, Federico Roncarolo, Francesco Velotti, Giulia Papotti, Matthew Fraser, Mihaly Vadai, Roberto Piandani, Verena Kain (European Organization for Nuclear Research), Philip Burrows (John Adams Institute).