Observation of scintillation light from interactions of neutrons in liquid methane chamber

H. Tanaka, H. Tenzou, D. Satoh, H. Arima, K. Maehata, K. Ishibashi

Research output: Contribution to journalConference articlepeer-review


Nuclear reaction data on high-energy neutrons are necessary in such fields of technology as accelerator shielding design and irradiation damage of spaceship microelectronics. Few measurements have been made with high-energy neutrons above 100 MeV to date, and the data accuracy is insufficient for these applications. A time projection chamber (TPC) filled with liquid methane is a promising system for detection of high-energy neutrons with high efficiency. In the liquid methane TPC, the scintillation light produced by incident neutrons works as an internal trigger signal for operation of the TPC. However, no report has shown that scintillation light is emitted outward through the liquid methane. Therefore, we examined whether the scintillation light is absorbed in the liquid methane or can be observed by photomultipliers. We constructed a liquid methane chamber and demonstrated that scintillation light can be measured during neutron incidence on the liquid methane. The light was generated without addition of xenon.

Original languageEnglish
Pages (from-to)1168-1171
Number of pages4
JournalIEEE Transactions on Nuclear Science
Issue number4 I
Publication statusPublished - Aug 2001
EventNuclear Science Symposium (NSS) 2000 - Lyon, France
Duration: Oct 15 2000Oct 20 2000

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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