A high S/N ratio spin flip chopper system for a pulsed neutron source

K. Taketani, T. Ebisawa, M. Hino, K. Hirota, T. Ino, M. Kitaguchi, K. Mishima, S. Muto, H. Oide, T. Oku, H. Otono, K. Sakai, T. Shima, H. M. Shimizu, S. Yamashita, T. Yoshioka

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We report a successful demonstration of a high S/N ratio spin flip chopper (SFC) system for pulsed neutron sources. The system consists of two SFCs and each SFC consists of a radio frequency (RF) flipper and Soller magnetic supermirrors. The aperture of the Soller mirror was 18 mm in width and 20 mm in height. The S/N ratio of the system was 306:1. This system is going to be installed to measure neutron lifetime precisely using the cold-neutron beam line, BL05 polarized-beam branch, at the Materials and Life Science Experimental Facility (MLF) in Japan Proton Accelerator Research Complex (J-PARC).

Original languageEnglish
Pages (from-to)S134-S137
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1 SUPPL.
Publication statusPublished - Apr 1 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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