Experimental approach to ultra-cold ion beam at S-LSR

Author

Noda, A. ; Shirai, T. ; Souda, H. ; Tanabe, M. ; Tongu, H. ; Ikegami, M. ; Ishikawa, T. ; Nakao, M. ; Fadil, H. ; Grieser, M. ; Meshkov, I. ; Smirnov, A. ; Noda, Kentaro

Author_Institution

Kyoto Univ., Kyoto

fYear

2007

fDate

25-29 June 2007

Firstpage

2035

Lastpage

2037

Abstract

At S-LSR, abrupt reduction of momentum spread of 7 MeV proton beam to ~2 times 10^-6 at proton number of -2000 has been observed, which indicates phase transition to 1 dimensional ordered state. Attained proton temperatures after transition are 26 mueV and 1 meV for longitudinal and transverse directions, respectively, which compared with the corresponding values of 20 mueV and 34 meV for electron beam, indicates the magnetization of electron. Laser cooling of ²⁴Mg⁺ has also been started and momentum spread of ~10⁸ ions is reduced to 2 times 10^-4, saturated with the momentum transfer from transverse degree of freedom by intra-beam scattering.

Keywords

beam handling techniques; ion beams; laser cooling; proton beams; storage rings; ²⁴Mg⁺ ion beam cooling; S-LSR; electron beam; electron volt energy 7 MeV; injector proton linac; laser cooling; magnetization; proton beam; proton temperatures; storage ring; ultracold ion beam; Cooling; Crystallization; Electron beams; Ion beams; Laser beams; Particle beam injection; Particle beams; Particle scattering; Protons; Ring lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4441137

Filename

4441137