Simulation of muon electrostatic transport for low energy muon extraction

Ikemoto, Megumi*; Somekawa, Jun*; Neki, Arata*; Konishi, Ren*; Nakashima, Ryota*; Okutsu, Kenichi*; Kino, Yasushi*; Yamashita, Takuma*; Okada, Shinji*; Sato, Motoyasu*; Toyama, Yuichi*; Oka, Toshitaka   ; Kawamura, Naritoshi*; Kanda, Sotaro*; Shimomura, Koichiro*; Takeshita, Soshi*; Tampo, Motonobu*; Doiuchi, Shogo*; Nagatani, Yukinori*; Natori, Hiroaki*; Nishimura, Shoichiro*; Miyake, Yasuhiro*; Datt, P. A.*; Strasser, P.*; Ishida, Katsuhiko*

We have been studying on muon beam quality improvement by moderating generated by an accelerator with a thin Si film, and then decelerating and focusing the beam in an electrostatic field. In this study, numerical simulation of an experiment in which of a few MeV is injected into a 0.5~mm thick Si plate and , which is decelerated to a few keV, is extracted electrostatically is performed using charged particle orbit software (SIMION). The flight time to the end of the transport tube and the transport efficiency change with a slight shift of the muon launch position, suggesting that the muon transport process is sensitive to the initial conditions.