Development of modulating permanent magnet sextupole lens for focusing of pulsed cold neutrons

Masako Yamada, Yoshihisa Iwashita, Masahiro Ichikawa, Hiromu Tongu, Hiroshi Fujisawa, Hirohiko M. Shimizu, Takashi Ino, Kenji Mishima, Kaoru Taketani, Takahiro Morishima, Suguru Mutou, Tamaki Yoshioka, Takayuki Oku, Kenji Sakai, Takenao Shinohara, Jun Ichi Suzuki, Katsuya Hirota, Yoshie Otake, Hiromi Sato, Yoshichika SekiSinsuke Kawasaki, Hidetoshi Otono, Sachio Komamiya, Satoru Yamashita, Yoshio Kamiya, Peter Geltenbort

Research output: Contribution to conferencePaper

Abstract

Cold neutron beams can be focused by a strong sextupole magnetic field. A permanent magnet sextupole lens whose focusing strength can be synchronously modulated at the rate of pulsed cold neutron beams is under development. This device should keep the focal point for pulsed neutron beams whose wavelength spreads as a function of time of flight. This kind of device improves the utilization of valuable neutrons and saves experiment time and costs. It will raise linac based small neutron sources as a good counter part to large powerful neutron facilities. Experimental results that were obtained at Institute Laue-Langevin (ILL) are also described.

Original languageEnglish
Pages263-265
Number of pages3
Publication statusPublished - 2009 Dec 1
Externally publishedYes
Event24th International Linear Accelerator Conference, LINAC 2008 - Victoria, BC, Canada
Duration: 2008 Sep 292008 Oct 3

Conference

Conference24th International Linear Accelerator Conference, LINAC 2008
CountryCanada
CityVictoria, BC
Period08/9/2908/10/3

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Yamada, M., Iwashita, Y., Ichikawa, M., Tongu, H., Fujisawa, H., Shimizu, H. M., Ino, T., Mishima, K., Taketani, K., Morishima, T., Mutou, S., Yoshioka, T., Oku, T., Sakai, K., Shinohara, T., Suzuki, J. I., Hirota, K., Otake, Y., Sato, H., ... Geltenbort, P. (2009). Development of modulating permanent magnet sextupole lens for focusing of pulsed cold neutrons. 263-265. Paper presented at 24th International Linear Accelerator Conference, LINAC 2008, Victoria, BC, Canada.