@article{oai:repo.qst.go.jp:00045697,
 author = {Yajima, Kazuaki and Yasuda, Hiroshi and Takada, Masashi and Sato, Tatsuhiko and Goka, Tateo and Matsumoto, Haruhisa and Nakamura, Takashi and 矢島 千秋 and 保田 浩志 and 高田 真志 and 中村 尚司},
 issue = {1},
 journal = {Journal of Nuclear Science and Technology},
 month = {Jan},
 note = {Cosmic-ray neutron energy spectra from thermal to 15 MeV were measured with the multi-moderator spectrometer known as the Bonner Ball Neutron Detector (BBND) at aviation altitude (9-11 km). Four flights were carried out around the Nagoya Airport in Japan. The measured data were unfolded using the maximum entropy deconvolution code MAXED, and the derived spectra agreed with calculated results using the PHITS-based Analytical Radiation Model in the Atmosphere (PARMA). The results of the in-flight measurement verified the accuracy of model calculation in regard to the neutrons within a certain energy range.},
 pages = {31--39},
 title = {Measurements of Cosmic-Ray Neutron Energy Spectra from Thermal to 15 MeV with Bonner Ball Neutron Detector in Aircraft},
 volume = {47},
 year = {2010}
}