Author:
Oishi Y,Adachi T,Saito N,Ikedo Y,Ishida K,Kanda S,Umezawa T,Kamioka S,Teshima N,Nakamura J,Nakamura S,Miyake Y,Iwasaki M,Wada S,Shimomura K
Abstract
Abstract
A small-momentum-width muon beam, so-called ultra-slow muon beam, can be generated by laser ionization of muonium. To realize efficient ultra-slow muon generation, the Lyman-alpha and below 360 nm coherent light are required to resonantly excite the muonium from the ground state to 2p and sequentially ionizes excited muonium to the unbound state. At the J-PARC MLF Ultra-Slow Muon beamline, we have successfully generated Lyman-alpha coherent light exceeding 10 μJ using an all-solid-state laser and high-efficiency vacuum ultraviolet light generation technologies. In this paper, we will describe the intense Lyman-alpha light source.
Subject
Computer Science Applications,History,Education