A 30 MeV-cyclotron-based quasi-monoenergetic neutron source

Kuo Yuan Chu, Weng Sheng Kuo, How Ming Lee, Yiin Kuen Fuh

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This study developed a quasi-monoenergetic neutron source (QMN) for the semiconductor device's soft error rate test (SER). Quasi-monoenergetic neutrons are generated by Be(p,n)B99 nuclear reaction with a 1 mm beryllium target and 30 MeV protons from a cyclotron. An 8 mm water in the back of the beryllium target is used for avoiding proton penetration. The neutron spectra simulated by MCNP showed that the peak energy was around 26.5 MeV. The heat flow and mechanical properties are numerically analyzed, and the safe operating conditions are therefore determined.

Original languageEnglish
Pages (from-to)1559-1566
Number of pages8
JournalNuclear Engineering and Technology
Issue number5
StatePublished - May 2023


  • Cyclotron
  • Neutron target station
  • Quasi-monoenergetic neutron (QMN)
  • Soft error rate (SER)


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