Speaker
Description
"The ultra-slow muon (USM), developed for the J-PARC Muon g-2/EDM experiment, is produced through the ionization of muonium at room temperature using a combination of 122 nm and 355 nm laser—a process known as muon cooling. The first beam test employing this laser setup is scheduled at the end of 2025. Despite its crucial role in determining USM yield, the laser system has several challenges for proper diagnostics due to its short wavelength (122 nm), short pulse duration (2 ns FWHM), and high pulse energy (10 μJ).
To address these challenges, a laser diagnostic system has been developed to adjust and monitor the optical path, and measure key laser parameters such as spot size and pulse energy. This poster first outlines the design principles and functionalities of the diagnostic system. Utilizing this system, a series of laser parameter scans are planned to extract indirectly measurable quantities such as pulse timing, spatial overlap, and linewidth. Simulation studies for each scan, along with the expected outcomes, will also be presented."
