Seongyeol KIM

Construction Plans of Multi-Purpose Beam Test Facility at the PAL-XFEL for High-Energy Physics Experiments

Seongyeol KIM, Heung-Sik Kang

High-energy physics experiments utilizing GeV scale particle beams have been constrained in Korea due to the limited availability of high-energy beams. Since 2017, fourth-generation light source facility, known as Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL) has been operational to provide …

Construction and Operation Plan for the Second Hard X-ray Beamline at PAL-XFEL

Inhyuk Nam, Chi Hyun Shim, Seongyeol KIM

The second hard X-ray beamline (HX2) at PAL-XFEL (Pohang Accelerator Laboratory X-ray Free Electron Laser) is currently in progress for construction to meet the increasing demands of researchers in various fields. With higher electron beam energy and a larger undulator parameter K, …

Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in Plasma

L. Verra, G. Zevi Della Porta, J. Pucek, Tatiana Nechaeva et autres

A long, narrow, relativistic charged particle bunch propagating in plasma is subject to the self-modulation (SM) instability. We show that SM of a proton bunch can be seeded by the wakefields driven by a preceding electron bunch. SM timing reproducibility and control …

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Analysis of proton bunch parameters in the AWAKE experiment

Vasyl Hafych, Allen Christopher Caldwell, R. Agnello, C. Ahdida et autres

Abstract A precise characterization of the incoming proton bunch parameters is required to accurately simulate the self-modulation process in the Advanced Wakefield Experiment (AWAKE). This paper presents an analysis of the parameters of the incoming proton bunches used in the later stages …

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