Development of measurement system of neutron β decay

Kenji Mishima, Satoru Yamada, Hiromi Sato, Katsuya Hirota, Takenao Shinohara, Takahiro Morishima, Jun ichi Suzuki, Takayuki Oku, Hirohiko M. Shimizu

Research output: Contribution to journalArticlepeer-review


Precise measurement of neutron β decay allows determining the coupling constant of weak interaction independent of any nuclear structure. We have developed measurement system of neutron β decay at a thermal neutron beamline in JRR-3, JAEA. By using coincidence technique of two kinds of detectors, we have succeeded in detecting the signal of neutron β decay with S/N of 0.63 and count rate of 0.40 cps.

Original languageEnglish
Pages (from-to)1219-1221
Number of pages3
JournalPhysica B: Condensed Matter
Publication statusPublished - 2006 Nov 15
Externally publishedYes


  • Neutron β decay
  • Standard model
  • Weak interaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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