IPAC'23 - Student Poster Session Guide

IPAC’23 / STUDENT POSTER SESSION GUIDE 53 Student Poster Session SUPM101 Finite element analysis for NEG coated vacuum chamber based on ANSYS Workbench Wenjing Ma , Wenli Zhang, Xiaopeng Xu, Sihui Wang, Xiaoqin Ge, Baoyuan Bian (University of Science and Technology of China), Jianya Wei (Anhui University). The Hefei Advanced Light Facility (HALF) is a diffraction limited storage ring (DLSR) being con- structed. As the main component of the storage ring vacuum system, the vacuum chamber transports the beam and withstands the thermal effect of synchrotron radiation simultaneous- ly. The thermal and mechanical condition of the vacuum chamber of HALF were quantitatively analysed by means of ANSYS WORKBENCH in this work. Combining the Computational Fluid Mechanics (CFD) and Finite Elements Analysis (FEA), the temperature and thermal stress maps of the vacuum chamber were calculated. The CFD calculation displays that the heat transfer coefficient between the water and the chamber is 7966-13093 W/(m2·℃). The thermal-mechan- ical simulation shows that the maximum temperature and thermal stress are 53.5 °C and 42.1 MPa, respectively. The static structural analysis was performed on vacuum chamber under the ultra-high vacuum condition, with the maximum stress of 1.7 MPa and the maximum deforma- tion of 0.0003 mm. These results show that the vacuum chamber meets the design require- ments and provide a critical theoretical basis for the design of the vacuum system of HALF. SUPM102 Transport Line for Laser-Plasma Acceleration Electron Beam Characterization Coline Guyot (Université Paris-Saclay, CNRS/IN2P3, IJCLab) . Grégory Iaquaniello, Gueladio Kane, Pierre Drobniak (Laboratoire de Physique des 2 Infinis Irène Joliot-Curie), Alexandre Gonnin, Christelle Bruni, Denis Douillet, Kevin Cassou, Viacheslav Kubytskyi, Yann Peinaud (Université Paris-Saclay, CNRS/IN2P3, IJCLab), Bruno Lucas, Sophie Kazamias (Univer- sité Paris Saclay), Damien Minenna, Phu Anh Phi Nghiem (Commissariat à l’Energie Atomique et aux Energies Alternatives), Moana Pittman (Centre Laser de l’Univ. Paris-Sud). The quest of laser plasma accelerators is of great interest for various applications such as light sources or high energy physics colliders. This research has led to numerous performance improvements, particularly in terms of beam energy versus compactness [1] and ultra-short bunch length [2]. However, these performances are often reached without the achievement of sufficient beam quality, stability and reproducibility. These are the objectives of PALLAS, a test facility at IJCLab, that aims to advance laser-plasma from *acceleration* to accelerators. To this end, one of the main lines of research is the electron beam control and transport. The primary goal is to have a lattice design that allows for a fine characterization of the output beam as a function of the laser-plasma wakefield acceleration target cell and laser parameters, while paying a particular attention to preserving the quality of the beam during its transport. I will present the detailed strategy, considered for PALLAS, on the problematic of chromaticity and divergence for the transport of laser-plasma accelerated electron beams.